download:

AppCheckSetup.exe

Full analysis: https://app.any.run/tasks/ee0a2f29-72fb-4172-b148-c9de580ffaf0
Verdict: Malicious activity
Analysis date: December 06, 2018, 13:54:11
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, Nullsoft Installer self-extracting archive
MD5:

00C32ADC782782A72D1E9CA27A89D196

SHA1:

165ED23F585EE8E9295F2DBE9209EA8346763288

SHA256:

5F78824B8F9E563608DB75E58A6625B78FA145526F972F5CF6FB243F98B0E807

SSDEEP:

196608:VY4ticKDycjsWjhmF1Fnxx1cOqd/vnrBkVxt6RNvrZLl3xBx/2wKA3QFe:VvccyRu1F+vd/9kV6R3h3xX2/A3QFe

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

    • Loads dropped or rewritten executable

      • AppCheckSetup.exe (PID: 2476)
      • AppCheck.exe (PID: 3996)
      • AppCheck.exe (PID: 3700)
      • AppCheckC.exe (PID: 2932)
      • AppCheckC.exe (PID: 2392)
      • AppCheckC.exe (PID: 1416)
      • AppCheckS.exe (PID: 2460)

    • Changes the autorun value in the registry

      • AppCheckSetup.exe (PID: 2476)

    • Application was dropped or rewritten from another process

      • AppCheckC.exe (PID: 2932)
      • AppCheckC.exe (PID: 1416)
      • AppCheckC.exe (PID: 2392)
      • AppCheck.exe (PID: 3996)
      • AppCheckS.exe (PID: 2460)
      • nsB2AA.tmp (PID: 3420)
      • AppCheck.exe (PID: 3700)
      • nsB470.tmp (PID: 3524)

    • Actions looks like stealing of personal data

      • AppCheckC.exe (PID: 2932)

    • Changes settings of System certificates

      • AppCheckSetup.exe (PID: 2476)

  • SUSPICIOUS

    • Creates files in the Windows directory

      • AppCheckSetup.exe (PID: 2476)

    • Creates files in the program directory

      • AppCheckSetup.exe (PID: 2476)
      • AppCheck.exe (PID: 3996)
      • AppCheck.exe (PID: 3700)
      • AppCheckC.exe (PID: 2932)
      • AppCheckC.exe (PID: 1416)
      • AppCheckS.exe (PID: 2460)

    • Creates a software uninstall entry

      • AppCheckSetup.exe (PID: 2476)

    • Executable content was dropped or overwritten

      • AppCheckSetup.exe (PID: 2476)

    • Creates or modifies windows services

      • AppCheck.exe (PID: 3996)

    • Adds / modifies Windows certificates

      • AppCheckSetup.exe (PID: 2476)

    • Starts SC.EXE for service management

      • nsB470.tmp (PID: 3524)

    • Starts application with an unusual extension

      • AppCheckSetup.exe (PID: 2476)

  • INFO

    • Reads settings of System Certificates

      • AppCheck.exe (PID: 3700)
      • AppCheckS.exe (PID: 2460)
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) (67.4)
.dll | Win32 Dynamic Link Library (generic) (14.2)
.exe | Win32 Executable (generic) (9.7)
.exe | Generic Win/DOS Executable (4.3)
.exe | DOS Executable Generic (4.3)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2017:08:01 02:33:59+02:00
PEType: PE32
LinkerVersion: 6
CodeSize: 25600
InitializedDataSize: 141824
UninitializedDataSize: 2048
EntryPoint: 0x3489
OSVersion: 4
ImageVersion: 6
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 2.5.18.6
ProductVersionNumber: 2.5.18.6
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: CheckMAL Inc.
FileDescription: AppCheck Installer
LegalCopyright: © CheckMAL Inc. All rights reserved.
ProductName: AppCheck
ProductVersion: 2.5.18.6

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 01-Aug-2017 00:33:59
Detected languages:
  • English - United States
  • Japanese - Japan
  • Korean - Korea
CompanyName: CheckMAL Inc.
FileDescription: AppCheck 설치 프로그램
LegalCopyright: © CheckMAL Inc. All rights reserved.
ProductName: AppCheck
ProductVersion: 2.5.18.6

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: 0x000000D8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 01-Aug-2017 00:33:59
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
.text
0x00001000
0x000063D1
0x00006400
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.47945
.rdata
0x00008000
0x0000138E
0x00001400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
5.14383
.data
0x0000A000
0x00020358
0x00000600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
4.00074
.ndata
0x0002B000
0x0002D000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
.rsrc
0x00058000
0x00005DB8
0x00005E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.30144

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.2901
1072
UNKNOWN
English - United States
RT_MANIFEST
2
0
4264
UNKNOWN
English - United States
RT_ICON
3
0
1128
UNKNOWN
English - United States
RT_ICON
102
2.71813
180
UNKNOWN
English - United States
RT_DIALOG
103
2.64816
48
UNKNOWN
English - United States
RT_GROUP_ICON
105
2.68372
512
UNKNOWN
English - United States
RT_DIALOG
106
2.91148
248
UNKNOWN
English - United States
RT_DIALOG
107
2.52183
160
UNKNOWN
English - United States
RT_DIALOG
111
2.89887
238
UNKNOWN
English - United States
RT_DIALOG
202
2.62197
160
UNKNOWN
English - United States
RT_DIALOG

Imports

ADVAPI32.dll
COMCTL32.dll
GDI32.dll
KERNEL32.dll
SHELL32.dll
USER32.dll
ole32.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
47
Monitored processes
13
Malicious processes
9
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start drop and start start appchecksetup.exe nsb2aa.tmp no specs appcheck.exe nsb470.tmp no specs sc.exe no specs appchecks.exe explorer.exe no specs explorer.exe no specs appcheck.exe appcheckc.exe appcheckc.exe appcheckc.exe appchecksetup.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1416"C:\Program Files\CheckMAL\AppCheck\AppCheckC.exe" /StartC:\Program Files\CheckMAL\AppCheck\AppCheckC.exe
AppCheckS.exe
User:
admin
Company:
CheckMAL Inc.
Integrity Level:
HIGH
Description:
AppCheck Cleaner
Exit code:
0
Version:
2.5.18.6
Modules
Images
c:\program files\checkmal\appcheck\appcheckc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\checkmal\appcheck\mfc140u.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\program files\checkmal\appcheck\vcruntime140.dll
2344C:\Windows\system32\sc start appcheckC:\Windows\system32\sc.exe—nsB470.tmp
User:
admin
Company:
Microsoft Corporation
Integrity Level:
HIGH
Description:
A tool to aid in developing services for WindowsNT
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\sc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
2392"C:\Program Files\CheckMAL\AppCheck\AppCheckC.exe" /StartC:\Program Files\CheckMAL\AppCheck\AppCheckC.exe
AppCheckS.exe
User:
admin
Company:
CheckMAL Inc.
Integrity Level:
HIGH
Description:
AppCheck Cleaner
Exit code:
0
Version:
2.5.18.6
Modules
Images
c:\program files\checkmal\appcheck\appcheckc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\checkmal\appcheck\mfc140u.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\program files\checkmal\appcheck\vcruntime140.dll
2460"C:\Program Files\CheckMAL\AppCheck\AppCheckS.exe"C:\Program Files\CheckMAL\AppCheck\AppCheckS.exe
services.exe
User:
SYSTEM
Company:
CheckMAL Inc.
Integrity Level:
SYSTEM
Description:
AppCheck Anti-Ransomware Service
Exit code:
0
Version:
2.5.18.6
Modules
Images
c:\program files\checkmal\appcheck\appchecks.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
2476"C:\Users\admin\AppData\Local\Temp\AppCheckSetup.exe" C:\Users\admin\AppData\Local\Temp\AppCheckSetup.exe
explorer.exe
User:
admin
Company:
CheckMAL Inc.
Integrity Level:
HIGH
Description:
AppCheck Installer
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\appchecksetup.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\shell32.dll
2788C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -EmbeddingC:\Windows\explorer.exe—svchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Explorer
Exit code:
1
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\explorer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
2932"C:\Program Files\CheckMAL\AppCheck\AppCheckC.exe" /StartC:\Program Files\CheckMAL\AppCheck\AppCheckC.exe
AppCheckS.exe
User:
admin
Company:
CheckMAL Inc.
Integrity Level:
HIGH
Description:
AppCheck Cleaner
Exit code:
0
Version:
2.5.18.6
Modules
Images
c:\program files\checkmal\appcheck\appcheckc.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\program files\checkmal\appcheck\mfc140u.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\program files\checkmal\appcheck\vcruntime140.dll
3260"C:\Users\admin\AppData\Local\Temp\AppCheckSetup.exe" C:\Users\admin\AppData\Local\Temp\AppCheckSetup.exe—explorer.exe
User:
admin
Company:
CheckMAL Inc.
Integrity Level:
MEDIUM
Description:
AppCheck Installer
Exit code:
3221226540
Modules
Images
c:\systemroot\system32\ntdll.dll
3420"C:\Users\admin\AppData\Local\Temp\nsm787E.tmp\nsB2AA.tmp" "C:\Program Files\CheckMAL\AppCheck\AppCheck.exe" /RegisterC:\Users\admin\AppData\Local\Temp\nsm787E.tmp\nsB2AA.tmp—AppCheckSetup.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\nsm787e.tmp\nsb2aa.tmp
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
3524"C:\Users\admin\AppData\Local\Temp\nsm787E.tmp\nsB470.tmp" C:\Windows\system32\sc start appcheckC:\Users\admin\AppData\Local\Temp\nsm787E.tmp\nsB470.tmp—AppCheckSetup.exe
User:
admin
Integrity Level:
HIGH
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\nsm787e.tmp\nsb470.tmp
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
Total events
649
Read events
555
Write events
94
Delete events
0

Modification events

(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\CheckMAL\AppCheck
Operation:writeName:
Value:
C:\Program Files\CheckMAL\AppCheck
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\CheckMAL\AppCheck
Operation:writeName:ProductVersion
Value:
2.5.18.6
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:writeName:AppCheck Tray
Value:
"C:\Program Files\CheckMAL\AppCheck\AppCheck.exe" /Tray
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{8AE36751-D1AA-4021-A7D4-85909B56D610}
Operation:writeName:DisplayName
Value:
AppCheck Anti-Ransomware
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{8AE36751-D1AA-4021-A7D4-85909B56D610}
Operation:writeName:DisplayVersion
Value:
2.5.18.6
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{8AE36751-D1AA-4021-A7D4-85909B56D610}
Operation:writeName:DisplayIcon
Value:
C:\Program Files\CheckMAL\AppCheck\AppCheck.exe
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{8AE36751-D1AA-4021-A7D4-85909B56D610}
Operation:writeName:Publisher
Value:
CheckMAL Inc.
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{8AE36751-D1AA-4021-A7D4-85909B56D610}
Operation:writeName:UninstallString
Value:
C:\Program Files\CheckMAL\AppCheck\Uninstall.exe
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{8AE36751-D1AA-4021-A7D4-85909B56D610}
Operation:writeName:HelpLink
Value:
https://www.checkmal.com/manual/uninstall/
(PID) Process:(2476) AppCheckSetup.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{8AE36751-D1AA-4021-A7D4-85909B56D610}
Operation:writeName:URLInfoAbout
Value:
https://www.checkmal.com/product/appcheck/
Executable files
63
Suspicious files
1
Text files
5
Unknown types
7

Dropped files

PID
Process
Filename
Type
2476AppCheckSetup.exeC:\ProgramData\CheckMAL\AppCheck\aida.db —
MD5:—
SHA256:—
2476AppCheckSetup.exeC:\Program Files\CheckMAL\AppCheck\AppCheckD.sysexecutable
MD5:—
SHA256:—
2476AppCheckSetup.exeC:\Program Files\CheckMAL\AppCheck\Aida.dllexecutable
MD5:—
SHA256:—
2476AppCheckSetup.exeC:\Windows\system32\AppCheck32.dllexecutable
MD5:—
SHA256:—
2476AppCheckSetup.exeC:\Program Files\CheckMAL\AppCheck\AppCheckC.exeexecutable
MD5:—
SHA256:—
2476AppCheckSetup.exeC:\Program Files\CheckMAL\AppCheck\mfc140jpn.dllexecutable
MD5:CF2025D110A84C030152EB36444F3753
SHA256:D6C48443025992792543085FCF6A7CC978796E81868C18CC8FA83CCDDD270BF9
2476AppCheckSetup.exeC:\Program Files\CheckMAL\AppCheck\mfc140kor.dllexecutable
MD5:6A30299AECA91700CD692B3D2A3CD913
SHA256:B1E0F6209439F9CC18589E187F8EEC9B637FB0B48F76DEF8AC9792C4B477516D
2476AppCheckSetup.exeC:\Users\admin\AppData\Local\Temp\nsm787E.tmp\modern-header.bmpimage
MD5:8C74C79C212E336DD9B003C16069D0CD
SHA256:6BCE5C53A89243173C7E7A204FCBBD3585090480B8C63D8419196D8637295212
2476AppCheckSetup.exeC:\Program Files\CheckMAL\AppCheck\AppCheckS.exeexecutable
MD5:—
SHA256:—
2476AppCheckSetup.exeC:\Program Files\CheckMAL\AppCheck\AppCheckB.exeexecutable
MD5:—
SHA256:—
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
7
DNS requests
2
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
3700
AppCheck.exe
52.78.76.217:443
www.checkmal.com
Amazon.com, Inc.
KR
suspicious
2476
AppCheckSetup.exe
172.217.21.238:443
www.google-analytics.com
Google Inc.
US
whitelisted
2932
AppCheckC.exe
52.78.76.217:443
www.checkmal.com
Amazon.com, Inc.
KR
suspicious
2460
AppCheckS.exe
172.217.21.238:443
www.google-analytics.com
Google Inc.
US
whitelisted
2460
AppCheckS.exe
52.78.76.217:443
www.checkmal.com
Amazon.com, Inc.
KR
suspicious
1416
AppCheckC.exe
52.78.76.217:443
www.checkmal.com
Amazon.com, Inc.
KR
suspicious

DNS requests

Domain
IP
Reputation
www.google-analytics.com
  • 172.217.21.238
whitelisted
www.checkmal.com
  • 52.78.76.217
suspicious

Threats

No threats detected
Process
Message
AppCheck.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
AppCheck.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
AppCheckS.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
AppCheck.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
AppCheck.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
AppCheckC.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
AppCheckC.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
AppCheckC.exe
[CIPCServer::Finalize] Finalize
AppCheckC.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
AppCheckC.exe
[CLoggerEx::getLogConfiguration]RegOpenKeyEx failed. 2
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Reports
AppCheckSetup.exe