Analysis

  • max time kernel
    61s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    28-06-2024 02:25

General

  • Target

    18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe

  • Size

    380KB

  • MD5

    18737b20ca2a0bcf0232b95229848466

  • SHA1

    8af1dfa28307544dd3fbd7124702d2586ebf4b3a

  • SHA256

    e3a4af22b0ede7f828047006daea93264dbe240d4d7f6c64152a33610142f988

  • SHA512

    3e265b2a600ed420fee6e0d10981c476cfa95339668db4471fa92b98990d61103ddc2ea0f53a7455b7131352a34e6f0520476b064423446d111d4a8d26eabf88

  • SSDEEP

    6144:0JzXTQXmPq7hxcxEApZniZDnvN+2ekPam0V69RjSBBpQyKdU/wz/OGP5lDfpo:qMXmPq7heESUw2mxxBpUW/wz/OGPP6

Malware Config

Extracted

Family

latentbot

C2

darkbluecomet.zapto.org

Signatures

  • Darkcomet

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

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • UPX packed file 20 IoCs

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

  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2992
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2488
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2464
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2548
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • Views/modifies file attributes
          PID:2720
      • C:\Windupdt\winupdate.exe
        "C:\Windupdt\winupdate.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2680
        • C:\Windupdt\winupdate.exe
          C:\Windupdt\winupdate.exe
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • Executes dropped EXE
          • Loads dropped DLL
          • Windows security modification
          • Adds Run key to start application
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2512
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\18737b20ca2a0bcf0232b95229848466_JaffaCakes118.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1820
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 5
          4⤵
          • Runs ping.exe
          PID:2364

Network

MITRE ATT&CK Matrix ATT&CK v13

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

2
T1543

Windows Service

2
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

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Modify Registry

6
T1112

Impair Defenses

3
T1562

Disable or Modify Tools

2
T1562.001

Disable or Modify System Firewall

1
T1562.004

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windupdt\winupdate.exe
    Filesize

    380KB

    MD5

    18737b20ca2a0bcf0232b95229848466

    SHA1

    8af1dfa28307544dd3fbd7124702d2586ebf4b3a

    SHA256

    e3a4af22b0ede7f828047006daea93264dbe240d4d7f6c64152a33610142f988

    SHA512

    3e265b2a600ed420fee6e0d10981c476cfa95339668db4471fa92b98990d61103ddc2ea0f53a7455b7131352a34e6f0520476b064423446d111d4a8d26eabf88

  • memory/2512-51-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-54-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-53-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-48-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-50-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-39-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2512-52-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-49-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-47-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-46-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-55-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2512-42-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-9-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-25-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-14-0x0000000000260000-0x0000000000261000-memory.dmp
    Filesize

    4KB

  • memory/2992-13-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-12-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-11-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-2-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-10-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-8-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2992-5-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB

  • memory/2992-4-0x0000000000400000-0x00000000004B9000-memory.dmp
    Filesize

    740KB