Overview

overview

10

Static

static

3

1e3b51ee48...18.exe

windows7-x64

10

1e3b51ee48...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    142s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-07-2024 05:57

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General

  • Target

    1e3b51ee48e2e008bc76134ca96afdb7_JaffaCakes118.exe

  • Size

    608KB

  • MD5

    1e3b51ee48e2e008bc76134ca96afdb7

  • SHA1

    62fecd92a8b328f23c5f6dbb74925208870d8092

  • SHA256

    96ef9ae86c094b1176697a5d5945b4471a9f76b6b586a70a9cab88f9a3593a20

  • SHA512

    f32a3097cc9d55b290b51898d3a75f503998af35ce32c532571f57c4355b00b97821a698ab32d6e6657dc0630e74faecb1fcb70c854607544002dd2fd45e7621

  • SSDEEP

    12288:Y7yse1uS1O7vy9sU9lNz79wAx80rXtjQEeNIA:Y7yruS476zld9w/XNI

Score
10/10
darkcometguest16evasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.254.104:1604

Mutex

DC_MUTEX-HEGGY71

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    7PdTJfZEBdbx

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies security service 2 TTPs 2 IoCs
    evasion
  • Windows security bypass 2 TTPs 2 IoCs
    evasiontrojan
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    evasion
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Windows security modification 2 TTPs 1 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • AutoIT Executable 6 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 57 IoCs
  • Suspicious use of SendNotifyMessage 57 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e3b51ee48e2e008bc76134ca96afdb7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1e3b51ee48e2e008bc76134ca96afdb7_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4652
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\1e3b51ee48e2e008bc76134ca96afdb7_JaffaCakes118.exe" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3240
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\1e3b51ee48e2e008bc76134ca96afdb7_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:1620
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4404
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:3512
    • C:\Users\Admin\AppData\Local\Temp\FUCK.EXE
      "C:\Users\Admin\AppData\Local\Temp\FUCK.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:1616
    • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
      2⤵
      • Modifies security service
      • Windows security bypass
      • Checks computer location settings
      • Executes dropped EXE
      • Windows security modification
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3316
      • C:\Users\Admin\AppData\Local\Temp\FUCK.EXE
        "C:\Users\Admin\AppData\Local\Temp\FUCK.EXE"
        3⤵
        • Executes dropped EXE
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4392
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies security service
        • Windows security bypass
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3980
        • C:\Users\Admin\AppData\Local\Temp\FUCK.EXE
          "C:\Users\Admin\AppData\Local\Temp\FUCK.EXE"
          4⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:4516

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

5
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\FUCK.EXE
    Filesize

    294KB

    MD5

    6eb20cdb2c86eca34875b5595583a84b

    SHA1

    c126d17216de9e4cda99588f0c36cb0dc57ec2c9

    SHA256

    26fe95fb0564d2b0184c7f95bd8b0d6c7a31022d2a50a3798f62e3b7da1ab949

    SHA512

    a1870f335970b00e251e00f5afd183653ac6d77a44369c679bdf939157a175ec87c3143b5b30e060032e36db7169d3c4e9b817a2d4fc22f4ee040b860bfec364

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    Filesize

    608KB

    MD5

    1e3b51ee48e2e008bc76134ca96afdb7

    SHA1

    62fecd92a8b328f23c5f6dbb74925208870d8092

    SHA256

    96ef9ae86c094b1176697a5d5945b4471a9f76b6b586a70a9cab88f9a3593a20

    SHA512

    f32a3097cc9d55b290b51898d3a75f503998af35ce32c532571f57c4355b00b97821a698ab32d6e6657dc0630e74faecb1fcb70c854607544002dd2fd45e7621

    Download Submit
  • memory/1616-35-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

    Download
  • memory/1616-38-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

    Download
  • memory/1616-15-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

    Download
  • memory/3316-27-0x0000000000400000-0x000000000052E000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/3316-32-0x0000000000400000-0x000000000052E000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/4392-29-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

    Download
  • memory/4392-36-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

    Download
  • memory/4392-37-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

    Download
  • memory/4516-34-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

    Download
  • memory/4652-0-0x0000000000400000-0x000000000052E000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/4652-24-0x0000000000400000-0x000000000052E000-memory.dmp
    Filesize

    1.2MB

    Download
  • memory/4652-1-0x0000000002280000-0x0000000002281000-memory.dmp
    Filesize

    4KB

    Download