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File name:

f4ae96ff05a63f6e4e5b8525b12fc65f8b89ac29100dfdbc01e346f32190fb7f.exe

Full analysis: https://app.any.run/tasks/8763d746-74f7-447f-9502-50d85ee9de96
Verdict: Malicious activity
Analysis date: October 14, 2019, 07:47:36
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5:

A6601052F7E385C6AFB6FD3873B6F398

SHA1:

B46AC083AF450158AC2744F2B7F9BF671BBE7971

SHA256:

F4AE96FF05A63F6E4E5B8525B12FC65F8B89AC29100DFDBC01E346F32190FB7F

SSDEEP:

12288:C4wFHoSLhxY+UBC6TsMX2jZ03gKnVlq9ZA6Zur1qVN196d:4Y+UB5TsjZ035

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

    • Changes the autorun value in the registry

      • reg.exe (PID: 3904)

  • SUSPICIOUS

    • Application launched itself

      • Skype.exe (PID: 1484)
      • Skype.exe (PID: 3400)
      • Skype.exe (PID: 3896)
      • Skype.exe (PID: 3012)

    • Uses REG.EXE to modify Windows registry

      • Skype.exe (PID: 3400)

    • Reads CPU info

      • Skype.exe (PID: 3400)
      • Skype.exe (PID: 1484)

    • Creates files in the user directory

      • Skype.exe (PID: 3400)
      • Skype.exe (PID: 3896)
      • Skype.exe (PID: 3012)

    • Modifies the open verb of a shell class

      • Skype.exe (PID: 3400)

  • INFO

    • Manual execution by user

      • Skype.exe (PID: 1484)
      • Skype.exe (PID: 3400)

    • Reads the hosts file

      • Skype.exe (PID: 3400)
      • Skype.exe (PID: 1484)

    • Reads settings of System Certificates

      • Skype.exe (PID: 3400)

    • Dropped object may contain Bitcoin addresses

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

TRiD

.exe | Win64 Executable (generic) (28.6)
.exe | UPX compressed Win32 Executable (28)
.exe | Win32 EXE Yoda's Crypter (27.5)
.dll | Win32 Dynamic Link Library (generic) (6.8)
.exe | Win32 Executable (generic) (4.6)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2015:01:27 04:56:27+01:00
PEType: PE32
LinkerVersion: 6
CodeSize: 45056
InitializedDataSize: 4096
UninitializedDataSize: 106496
EntryPoint: 0x24640
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 27-Jan-2015 03:56:27

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: 0x000000D0

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 27-Jan-2015 03:56:27
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_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
UPX0
0x00001000
0x0001A000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
UPX1
0x0001B000
0x0000B000
0x0000A200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.97244
UPX2
0x00026000
0x00001000
0x00000200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
2.93024

Imports

KERNEL32.DLL
MSVCRT.dll
SHLWAPI.dll
USER32.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
46
Monitored processes
11
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start f4ae96ff05a63f6e4e5b8525b12fc65f8b89ac29100dfdbc01e346f32190fb7f.exe no specs skype.exe skype.exe skype.exe skype.exe reg.exe skype.exe no specs reg.exe no specs skype.exe skype.exe no specs skype.exe

Process information

PID
CMD
Path
Indicators
Parent process
2748"C:\Users\admin\AppData\Local\Temp\f4ae96ff05a63f6e4e5b8525b12fc65f8b89ac29100dfdbc01e346f32190fb7f.exe" C:\Users\admin\AppData\Local\Temp\f4ae96ff05a63f6e4e5b8525b12fc65f8b89ac29100dfdbc01e346f32190fb7f.exe—explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
3400"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" C:\Program Files\Microsoft\Skype for Desktop\Skype.exe
explorer.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Version:
8.29.0.50
1484"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" C:\Program Files\Microsoft\Skype for Desktop\Skype.exe
explorer.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Exit code:
0
Version:
8.29.0.50
3984"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe
Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Version:
8.29.0.50
1772"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe
Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Exit code:
2
Version:
8.29.0.50
3904C:\Windows\system32\reg.exe ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Skype for Desktop" /t REG_SZ /d "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" /fC:\Windows\system32\reg.exe
Skype.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Registry Console Tool
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3896"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=renderer --ms-disable-indexeddb-transaction-timeout --no-sandbox --service-pipe-token=B59F754E2DAFC10C371ACF97A4E69702 --lang=en-US --app-user-model-id=Microsoft.Skype.SkypeDesktop --app-path="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar" --node-integration=false --webview-tag=true --no-sandbox --preload="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar\Preload.js" --context-id=2 --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553 --disable-accelerated-video-decode --disable-gpu-compositing --enable-gpu-async-worker-context --service-request-channel-token=B59F754E2DAFC10C371ACF97A4E69702 --renderer-client-id=3 --mojo-platform-channel-handle=1540 /prefetch:1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe—Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Exit code:
0
Version:
8.29.0.50
2832C:\Windows\system32\reg.exe QUERY HKCU\Software\Microsoft\Skype /v RestartForUpdateC:\Windows\system32\reg.exe—Skype.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Registry Console Tool
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
640"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe
Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Exit code:
2
Version:
8.29.0.50
3012"C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=renderer --ms-disable-indexeddb-transaction-timeout --no-sandbox --service-pipe-token=4CB485E9539590E28048744DCF4E71C3 --lang=en-US --app-user-model-id=Microsoft.Skype.SkypeDesktop --app-path="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar" --node-integration=false --webview-tag=true --no-sandbox --preload="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar\Preload.js" --context-id=1 --enable-pinch --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --content-image-texture-target=0,0,3553;0,1,3553;0,2,3553;0,3,3553;0,4,3553;0,5,3553;0,6,3553;0,7,3553;0,8,3553;0,9,3553;0,10,3553;0,11,3553;0,12,3553;0,13,3553;0,14,3553;0,15,3553;0,16,3553;0,17,3553;1,0,3553;1,1,3553;1,2,3553;1,3,3553;1,4,3553;1,5,3553;1,6,3553;1,7,3553;1,8,3553;1,9,3553;1,10,3553;1,11,3553;1,12,3553;1,13,3553;1,14,3553;1,15,3553;1,16,3553;1,17,3553;2,0,3553;2,1,3553;2,2,3553;2,3,3553;2,4,3553;2,5,3553;2,6,3553;2,7,3553;2,8,3553;2,9,3553;2,10,3553;2,11,3553;2,12,3553;2,13,3553;2,14,3553;2,15,3553;2,16,3553;2,17,3553;3,0,3553;3,1,3553;3,2,3553;3,3,3553;3,4,3553;3,5,3553;3,6,3553;3,7,3553;3,8,3553;3,9,3553;3,10,3553;3,11,3553;3,12,3553;3,13,3553;3,14,3553;3,15,3553;3,16,3553;3,17,3553;4,0,3553;4,1,3553;4,2,3553;4,3,3553;4,4,3553;4,5,3553;4,6,3553;4,7,3553;4,8,3553;4,9,3553;4,10,3553;4,11,3553;4,12,3553;4,13,3553;4,14,3553;4,15,3553;4,16,3553;4,17,3553 --disable-accelerated-video-decode --disable-gpu-compositing --enable-gpu-async-worker-context --service-request-channel-token=4CB485E9539590E28048744DCF4E71C3 --renderer-client-id=4 --mojo-platform-channel-handle=2632 /prefetch:1C:\Program Files\Microsoft\Skype for Desktop\Skype.exe—Skype.exe
User:
admin
Company:
Skype Technologies S.A.
Integrity Level:
MEDIUM
Description:
Skype
Version:
8.29.0.50
Total events
222
Read events
203
Write events
0
Delete events
0

Modification events

No data
Executable files
0
Suspicious files
5
Text files
17
Unknown types
0

Dropped files

PID
Process
Filename
Type
3400Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\49V5JOKHVKPI6T7WYTI1.temp —
MD5:—
SHA256:—
3896Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\skylib\slimcore-0-1520891853.blog —
MD5:—
SHA256:—
3400Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\IndexedDB\file__0.indexeddb.leveldb\000003.logbinary
MD5:5235526262FD9488EC849766AC02534A
SHA256:9EA36E389B202BB57736C7A1D13DF2ABC8DC85787EDCED300D7E406CF8472658
2236Skype.exeC:\Users\admin\AppData\Local\Temp\skype-preview Crashes\operation_log.txttext
MD5:DE89A73F879A552ED6902F03ADA423F3
SHA256:BE16D15DA8444A11ED1ED8CE5DB29C41FE925F28165092B4C3E556BE53118600
3400Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\ecscache.jsontext
MD5:7234D91555358E469F8147F30239A91E
SHA256:4CA427A0028A5881D620AA0D74AB8A86EFDABEF7DBCAB080CD613C8259F4BE2E
1772Skype.exeC:\Users\admin\AppData\Local\Temp\skype-preview Crashes\operation_log.txttext
MD5:11112919C931B3BF45776F700D4989DB
SHA256:80C1F0429143BE4B1553DAED9D2C1669BBB03B8A89ED11D581DCFBFEFBDB1BD6
3400Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b916037c1e115fe0.customDestinations-msbinary
MD5:DF75762823450562FCE9804854677BA7
SHA256:9486D190557D7308301977A81F14AB52A993CF38215438F21D025E10F5DA04E7
640Skype.exeC:\Users\admin\AppData\Local\Temp\skype-preview Crashes\operation_log.txttext
MD5:E352E08C293CCD1FC67833E6CFBBDB81
SHA256:4DD55E54C6C98E1C6C94859E98FB598307910540529DBD1381480F66F2907A76
3400Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\IndexedDB\file__0.indexeddb.leveldb\LOGtext
MD5:4E8E21DEAF8735C1615B6174F095BA7E
SHA256:5ED4DCD4AAAFF4BD6C592BC380EA7B2E6C804174E122E4E36F8AA9740A286F98
3012Skype.exeC:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\skylib\slimcore-1-1520891853.blogbinary
MD5:21977DE0ACCE0C841AAB2D02FD42D301
SHA256:3D6310FEF3A446F3A31D7C33D2DE16DDBAC050BE302CBF4DFD19FB3A00FAD254
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
12
DNS requests
10
Threats
0

HTTP requests

No HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
1484
Skype.exe
13.90.95.57:443
get.skype.com
Microsoft Corporation
US
whitelisted
3400
Skype.exe
2.18.233.81:443
download.skype.com
Akamai International B.V.
—
whitelisted
3400
Skype.exe
13.107.3.128:443
a.config.skype.com
Microsoft Corporation
US
whitelisted
3400
Skype.exe
13.68.117.223:443
avatar.skype.com
Microsoft Corporation
US
whitelisted
3400
Skype.exe
52.114.158.52:443
pipe.skype.com
Microsoft Corporation
US
unknown
3400
Skype.exe
152.199.19.160:443
bot-framework.azureedge.net
MCI Communications Services, Inc. d/b/a Verizon Business
US
whitelisted
3400
Skype.exe
13.90.95.57:443
get.skype.com
Microsoft Corporation
US
whitelisted
3400
Skype.exe
172.217.23.138:443
www.googleapis.com
Google Inc.
US
whitelisted
3400
Skype.exe
52.114.76.35:443
browser.pipe.aria.microsoft.com
Microsoft Corporation
IE
whitelisted

DNS requests

Domain
IP
Reputation
get.skype.com
  • 13.90.95.57
whitelisted
a.config.skype.com
  • 13.107.3.128
whitelisted
pipe.skype.com
  • 52.114.158.52
whitelisted
download.skype.com
  • 2.18.233.81
whitelisted
www.googleapis.com
  • 172.217.23.138
  • 172.217.23.106
  • 172.217.16.138
  • 172.217.22.42
  • 172.217.22.106
  • 216.58.210.10
  • 172.217.21.202
  • 216.58.205.234
  • 172.217.21.234
  • 172.217.22.10
whitelisted
avatar.skype.com
  • 13.68.117.223
whitelisted
bot-framework.azureedge.net
  • 152.199.19.160
whitelisted
config.edge.skype.com
  • 13.107.3.128
whitelisted
b.config.skype.com
  • 13.107.3.128
whitelisted
browser.pipe.aria.microsoft.com
  • 52.114.76.35
whitelisted

Threats

No threats detected
Process
Message
Skype.exe
[1772:1792:1014/084817.263:VERBOSE1:crash_service_main.cc(78)] Session start. cmdline is [--reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1]
Skype.exe
[1772:1792:1014/084817.263:VERBOSE1:crash_service.cc(145)] window handle is 00030128
Skype.exe
[1772:1792:1014/084817.263:VERBOSE1:crash_service.cc(300)] pipe name is \\.\pipe\skype-preview Crash Service dumps at C:\Users\admin\AppData\Local\Temp\skype-preview Crashes
Skype.exe
[1772:1792:1014/084817.263:VERBOSE1:crash_service.cc(304)] checkpoint is C:\Users\admin\AppData\Local\Temp\skype-preview Crashes\crash_checkpoint.txt server is https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload maximum 128 reports/day reporter is electron-crash-service
Skype.exe
[1772:1792:1014/084817.263:ERROR:crash_service.cc(311)] could not start dumper
Skype.exe
[640:2108:1014/084819.209:VERBOSE1:crash_service_main.cc(78)] Session start. cmdline is [--reporter-url=https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload --application-name=skype-preview "--crashes-directory=C:\Users\admin\AppData\Local\Temp\skype-preview Crashes" --v=1]
Skype.exe
[640:2108:1014/084819.211:VERBOSE1:crash_service.cc(145)] window handle is 00040128
Skype.exe
[640:2108:1014/084819.211:VERBOSE1:crash_service.cc(300)] pipe name is \\.\pipe\skype-preview Crash Service dumps at C:\Users\admin\AppData\Local\Temp\skype-preview Crashes
Skype.exe
[640:2108:1014/084819.211:VERBOSE1:crash_service.cc(304)] checkpoint is C:\Users\admin\AppData\Local\Temp\skype-preview Crashes\crash_checkpoint.txt server is https://rink.hockeyapp.net/api/2/apps/a741743329d94bc08826af367733939d/crashes/upload maximum 128 reports/day reporter is electron-crash-service
Skype.exe
[640:2108:1014/084819.211:ERROR:crash_service.cc(311)] could not start dumper
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Reports
f4ae96ff05a63f6e4e5b8525b12fc65f8b89ac29100dfdbc01e346f32190fb7f.exe