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File name:

accesschk.exe

Full analysis: https://app.any.run/tasks/8bd72362-8c4f-4f70-892f-4115dcef838a
Verdict: Malicious activity
Analysis date: April 23, 2019, 10:23:50
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (console) Intel 80386, for MS Windows
MD5:

279EEBEA94B1909F84C02B427C67316C

SHA1:

2E2E712E5B73FAB842E84D1451F9EAAC391F0419

SHA256:

03CBA9A8BB79772942DCB812C70F09DBAB34944E918B71450347FFAB2AAB9B0A

SSDEEP:

3072:S3IDkQgXRse0Ooyw9VLm67ZiJiJELhgRqRHmd9p5TtnsCVb+tTSMi5I:pkQg/0n1LN7ZMhjRGrLWCVs5

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Application was dropped or rewritten from another process

      • n1ma113w.exe (PID: 1104)
      • n1ma113w.exe (PID: 868)
      • Setup.exe (PID: 3604)
      • Setup.exe (PID: 2172)
      • CxUtilSvc.exe (PID: 3472)
      • SASrv.exe (PID: 2708)
      • SAsrv.exe (PID: 3488)
      • CxUtilSvc.exe (PID: 3688)
      • SACpl.exe (PID: 1300)

    • Starts NET.EXE for service management

      • Setup.exe (PID: 2172)

    • Loads dropped or rewritten executable

      • Setup.exe (PID: 2172)
      • regsvr32.exe (PID: 2164)
      • mscorsvw.exe (PID: 2416)
      • mscorsvw.exe (PID: 1472)
      • mscorsvw.exe (PID: 2948)
      • mscorsvw.exe (PID: 3896)
      • mscorsvw.exe (PID: 980)

    • Registers / Runs the DLL via REGSVR32.EXE

      • Setup.exe (PID: 2172)

    • Loads the Task Scheduler COM API

      • schtasks.exe (PID: 3452)
      • schtasks.exe (PID: 2056)
      • schtasks.exe (PID: 1580)
      • schtasks.exe (PID: 1892)

    • Uses Task Scheduler to run other applications

      • Setup.exe (PID: 2172)

  • SUSPICIOUS

    • Modifies files in Chrome extension folder

      • chrome.exe (PID: 2512)

    • Executable content was dropped or overwritten

      • chrome.exe (PID: 2512)
      • n1ma113w.exe (PID: 1104)
      • n1ma113w.exe (PID: 868)
      • WinRAR.exe (PID: 3716)
      • n1ma113w.tmp (PID: 3568)
      • Setup.exe (PID: 2172)
      • mscorsvw.exe (PID: 2416)
      • mscorsvw.exe (PID: 2948)
      • mscorsvw.exe (PID: 980)
      • mscorsvw.exe (PID: 3896)

    • Creates or modifies windows services

      • Setup.exe (PID: 2172)
      • SASrv.exe (PID: 2708)

    • Searches for installed software

      • Setup.exe (PID: 2172)

    • Creates files in the program directory

      • Setup.exe (PID: 2172)

    • Creates files in the Windows directory

      • Setup.exe (PID: 2172)
      • mscorsvw.exe (PID: 2416)
      • ngen.exe (PID: 2812)
      • ngen.exe (PID: 2556)
      • mscorsvw.exe (PID: 2948)
      • mscorsvw.exe (PID: 3896)
      • mscorsvw.exe (PID: 980)

    • Creates COM task schedule object

      • Setup.exe (PID: 2172)
      • regsvr32.exe (PID: 2164)

    • Creates a software uninstall entry

      • Setup.exe (PID: 2172)

    • Removes files from Windows directory

      • mscorsvw.exe (PID: 2416)
      • mscorsvw.exe (PID: 2948)
      • Setup.exe (PID: 2172)
      • mscorsvw.exe (PID: 980)
      • mscorsvw.exe (PID: 3896)

    • Modifies the open verb of a shell class

      • Setup.exe (PID: 2172)

  • INFO

    • Reads settings of System Certificates

      • chrome.exe (PID: 2512)

    • Application launched itself

      • chrome.exe (PID: 2512)

    • Loads dropped or rewritten executable

      • n1ma113w.tmp (PID: 3568)

    • Application was dropped or rewritten from another process

      • n1ma113w.tmp (PID: 3568)
      • n1ma113w.tmp (PID: 3400)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (42.2)
.exe | Win64 Executable (generic) (37.3)
.dll | Win32 Dynamic Link Library (generic) (8.8)
.exe | Win32 Executable (generic) (6)
.exe | Generic Win/DOS Executable (2.7)

EXIF

EXE

SpecialBuild:
ProductVersion: 5.02
ProductName: Sysinternals AccessChk
OriginalFileName: accesschk.exe
LegalCopyright: Copyright (C) 2006-2011 Mark Russinovich
InternalName: Accesschk
FileVersion: 5.02
FileDescription: Reports effective permissions for securable objects
CompanyName: Sysinternals - www.sysinternals.com
CharacterSet: Unicode
LanguageCode: English (U.S.)
FileSubtype: -
ObjectFileType: Executable application
FileOS: Windows NT 32-bit
FileFlags: Special build
FileFlagsMask: 0x003f
ProductVersionNumber: 5.2.0.0
FileVersionNumber: 5.2.0.0
Subsystem: Windows command line
SubsystemVersion: 5
ImageVersion: -
OSVersion: 5
EntryPoint: 0x9b21
UninitializedDataSize: -
InitializedDataSize: 172032
CodeSize: 153088
LinkerVersion: 9
PEType: PE32
TimeStamp: 2011:08:10 04:46:06+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_CUI
Compilation Date: 10-Aug-2011 02:46:06
Detected languages:
  • English - United States
Debug artifacts:
  • c:\src\Misc\accesschk\Exe\Release\accesschk.pdb
CompanyName: Sysinternals - www.sysinternals.com
FileDescription: Reports effective permissions for securable objects
FileVersion: 5.02
InternalName: Accesschk
LegalCopyright: Copyright (C) 2006-2011 Mark Russinovich
OriginalFilename: accesschk.exe
ProductName: Sysinternals AccessChk
ProductVersion: 5.02
SpecialBuild: -

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x000000E8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 4
Time date stamp: 10-Aug-2011 02:46:06
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x000255FC
0x00025600
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.58312
.rdata
0x00027000
0x00008D52
0x00008E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.04144
.data
0x00030000
0x0001FA48
0x0001DE00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0.460068
.rsrc
0x00050000
0x000014A8
0x00001600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.4421

Resources

Title
Entropy
Size
Codepage
Language
Type
1
4.89381
891
UNKNOWN
English - United States
RT_MANIFEST
101
4.45986
3216
UNKNOWN
English - United States
BINRES

Imports

ADVAPI32.dll
COMDLG32.dll
GDI32.dll
KERNEL32.dll
NETAPI32.dll
USER32.dll
VERSION.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
117
Monitored processes
57
Malicious processes
8
Suspicious processes
3

Behavior graph

Click at the process to see the details
start drop and start drop and start drop and start drop and start accesschk.exe no specs chrome.exe chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs chrome.exe no specs n1ma113w.exe n1ma113w.tmp no specs n1ma113w.exe n1ma113w.tmp dllhost.exe no specs notepad.exe no specs winrar.exe setup.exe no specs setup.exe net.exe no specs net1.exe no specs cxutilsvc.exe no specs net.exe no specs net1.exe no specs cxutilsvc.exe no specs net.exe no specs net1.exe no specs sasrv.exe net.exe no specs net1.exe no specs sasrv.exe regsvr32.exe no specs ngen.exe no specs ngen.exe no specs mscorsvw.exe no specs mscorsvw.exe mscorsvw.exe mscorsvw.exe mscorsvw.exe schtasks.exe no specs schtasks.exe no specs schtasks.exe no specs schtasks.exe no specs sacpl.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2548"C:\Users\admin\AppData\Local\Temp\accesschk.exe" C:\Users\admin\AppData\Local\Temp\accesschk.exe—explorer.exe
User:
admin
Company:
Sysinternals - www.sysinternals.com
Integrity Level:
MEDIUM
Description:
Reports effective permissions for securable objects
Version:
5.02
2512"C:\Program Files\Google\Chrome\Application\chrome.exe" C:\Program Files\Google\Chrome\Application\chrome.exe
explorer.exe
User:
admin
Company:
Google Inc.
Integrity Level:
MEDIUM
Description:
Google Chrome
Version:
73.0.3683.75
2932"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win32 --annotation=prod=Chrome --annotation=ver=73.0.3683.75 --initial-client-data=0x7c,0x80,0x84,0x78,0x88,0x6f340f18,0x6f340f28,0x6f340f34C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google Inc.
Integrity Level:
MEDIUM
Description:
Google Chrome
Version:
73.0.3683.75
3952"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=watcher --main-thread-id=2104 --on-initialized-event-handle=308 --parent-handle=312 /prefetch:6C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google Inc.
Integrity Level:
MEDIUM
Description:
Google Chrome
Version:
73.0.3683.75
300"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --field-trial-handle=960,12107015881543131917,17542509425726505650,131072 --enable-features=PasswordImport --gpu-preferences=KAAAAAAAAACAAwAAAQAAAAAAAAAAAGAAAAAAAAEAAAAIAAAAAAAAACgAAAAEAAAAIAAAAAAAAAAoAAAAAAAAADAAAAAAAAAAOAAAAAAAAAAQAAAAAAAAAAAAAAAFAAAAEAAAAAAAAAAAAAAABgAAABAAAAAAAAAAAQAAAAUAAAAQAAAAAAAAAAEAAAAGAAAA --service-request-channel-token=2181600214301845056 --mojo-platform-channel-handle=928 --ignored=" --type=renderer " /prefetch:2C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google Inc.
Integrity Level:
LOW
Description:
Google Chrome
Version:
73.0.3683.75
1364"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=960,12107015881543131917,17542509425726505650,131072 --enable-features=PasswordImport --service-pipe-token=17825549199629418944 --lang=en-US --instant-process --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=17825549199629418944 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=1984 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google Inc.
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
73.0.3683.75
3796"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=960,12107015881543131917,17542509425726505650,131072 --enable-features=PasswordImport --service-pipe-token=17250900758217672250 --lang=en-US --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=17250900758217672250 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2204 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google Inc.
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
73.0.3683.75
2848"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=960,12107015881543131917,17542509425726505650,131072 --enable-features=PasswordImport --service-pipe-token=6228047698878637 --lang=en-US --extension-process --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=6228047698878637 --renderer-client-id=3 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2188 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google Inc.
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
73.0.3683.75
3056"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=960,12107015881543131917,17542509425726505650,131072 --enable-features=PasswordImport --disable-gpu-compositing --service-pipe-token=176121900958416265 --lang=en-US --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=176121900958416265 --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3700 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google Inc.
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
73.0.3683.75
2856"C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --field-trial-handle=960,12107015881543131917,17542509425726505650,131072 --enable-features=PasswordImport --disable-gpu-compositing --service-pipe-token=9794033113453349445 --lang=en-US --instant-process --enable-offline-auto-reload --enable-offline-auto-reload-visible-only --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --service-request-channel-token=9794033113453349445 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2008 /prefetch:1C:\Program Files\Google\Chrome\Application\chrome.exe—chrome.exe
User:
admin
Company:
Google Inc.
Integrity Level:
LOW
Description:
Google Chrome
Exit code:
0
Version:
73.0.3683.75
Total events
4 138
Read events
2 127
Write events
0
Delete events
0

Modification events

No data
Executable files
108
Suspicious files
83
Text files
571
Unknown types
18

Dropped files

PID
Process
Filename
Type
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\ShaderCache\GPUCache\index —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\ShaderCache\GPUCache\data_0 —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\ShaderCache\GPUCache\data_1 —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\ShaderCache\GPUCache\data_2 —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\ShaderCache\GPUCache\data_3 —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\fd6cb9fa-4e68-4646-b943-24507a36e041.tmp —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\index —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\data_reduction_proxy_leveldb\000018.dbtmp —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_0 —
MD5:—
SHA256:—
2512chrome.exeC:\Users\admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1 —
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
25
DNS requests
16
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2512
chrome.exe
GET
302
172.217.18.14:80
http://redirector.gvt1.com/edgedl/chromewebstore/L2Nocm9tZV9leHRlbnNpb24vYmxvYnMvMjJlQUFXRC12Ny1ldUFnMXF3SDlXZDlFZw/7319.128.0.1_pkedcjkdefgpdelpbcmbmeomcjbeemfm.crx
US
html
506 b
whitelisted
2512
chrome.exe
GET
200
173.194.139.6:80
http://r1---sn-aigzrn7k.gvt1.com/edgedl/chromewebstore/L2Nocm9tZV9leHRlbnNpb24vYmxvYnMvMjJlQUFXRC12Ny1ldUFnMXF3SDlXZDlFZw/7319.128.0.1_pkedcjkdefgpdelpbcmbmeomcjbeemfm.crx?cms_redirect=yes&mip=185.230.125.140&mm=28&mn=sn-aigzrn7k&ms=nvh&mt=1556015002&mv=m&pl=24&shardbypass=yes
US
crx
842 Kb
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2512
chrome.exe
172.217.16.142:443
clients1.google.com
Google Inc.
US
whitelisted
2512
chrome.exe
172.217.21.195:443
www.google.com.ua
Google Inc.
US
whitelisted
2512
chrome.exe
172.217.22.67:443
clientservices.googleapis.com
Google Inc.
US
whitelisted
2512
chrome.exe
216.58.210.13:443
accounts.google.com
Google Inc.
US
whitelisted
2512
chrome.exe
216.58.206.3:443
ssl.gstatic.com
Google Inc.
US
whitelisted
2512
chrome.exe
172.217.16.195:443
www.gstatic.com
Google Inc.
US
whitelisted
—
—
172.217.23.174:80
—
Google Inc.
US
whitelisted
2512
chrome.exe
172.217.22.14:443
apis.google.com
Google Inc.
US
whitelisted
2512
chrome.exe
216.58.210.4:443
www.google.com
Google Inc.
US
whitelisted
2512
chrome.exe
172.217.18.106:443
fonts.googleapis.com
Google Inc.
US
whitelisted

DNS requests

Domain
IP
Reputation
clientservices.googleapis.com
  • 172.217.22.67
whitelisted
www.google.com.ua
  • 172.217.21.195
whitelisted
accounts.google.com
  • 216.58.210.13
shared
clients1.google.com
  • 172.217.16.142
whitelisted
ssl.gstatic.com
  • 216.58.206.3
whitelisted
www.gstatic.com
  • 172.217.16.195
whitelisted
apis.google.com
  • 172.217.22.14
whitelisted
download.lenovo.com
  • 2.18.232.126
suspicious
www.google.com
  • 216.58.210.4
whitelisted
www.google.ch
  • 172.217.18.99
whitelisted

Threats

No threats detected
Process
Message
SASrv.exe
SASrv.exe(tid 5a8) 0:[ J_CMDLINE] - Option - Install Service.
SASrv.exe
SASrv.exe(tid 5a8) 0:[ J_CMDLINE] - Option - Install Service.
SASrv.exe
SASrv.exe(tid 5a8) 31:[ J_STATE] - Conexant SmartAudio service installed.
SAsrv.exe
SAsrv.exe(tid 23c) 0:[ J_STATE] - _tWinMain
SAsrv.exe
SAsrv.exe(tid 804) 0:[ J_STATE] - service_main started
SAsrv.exe
SAsrv.exe(tid ea8) 15:[ J_WINDOWS] - Windows Version is WINDOWS VISTA or later
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Reports
accesschk.exe