Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    27-06-2024 13:49

General

  • Target

    163a933227fd7a1e61eaf72f18074750_JaffaCakes118.exe

  • Size

    409KB

  • MD5

    163a933227fd7a1e61eaf72f18074750

  • SHA1

    38d1c60bd98409d2498e81607c351ac287579650

  • SHA256

    f32a44c038c2ecc44b898172aac4fb39f1fbdfa87552bc9c991caf0052eb4528

  • SHA512

    e207c5fab366a44e324b94856595de1d8d2f0fcaf11926946cd57da30659179222c53696790dd1017e140f3f1c8ba7d4d92090e630bb8f905816e2985bfd130a

  • SSDEEP

    6144:NDwD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZipY1oceWN:N8l8E4w5huat7UovONzbXwGp6oceWN

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

ala-tun.zapto.org:1604

Mutex

DC_MUTEX-HTT9SRF

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    Roq7Y0w7L9wi

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\163a933227fd7a1e61eaf72f18074750_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\163a933227fd7a1e61eaf72f18074750_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2688
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2736
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 256
          4⤵
          • Program crash
          PID:2388

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

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\Documents\MSDCSC\msdcsc.exe
    Filesize

    409KB

    MD5

    163a933227fd7a1e61eaf72f18074750

    SHA1

    38d1c60bd98409d2498e81607c351ac287579650

    SHA256

    f32a44c038c2ecc44b898172aac4fb39f1fbdfa87552bc9c991caf0052eb4528

    SHA512

    e207c5fab366a44e324b94856595de1d8d2f0fcaf11926946cd57da30659179222c53696790dd1017e140f3f1c8ba7d4d92090e630bb8f905816e2985bfd130a

  • memory/2096-0-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2096-1-0x0000000001C30000-0x0000000001C31000-memory.dmp
    Filesize

    4KB

  • memory/2096-7-0x0000000005150000-0x0000000005257000-memory.dmp
    Filesize

    1.0MB

  • memory/2096-14-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-57-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-61-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-68-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-55-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-56-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-15-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-58-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-59-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-60-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-67-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-62-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-63-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-64-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-65-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2688-66-0x0000000000400000-0x0000000000507000-memory.dmp
    Filesize

    1.0MB

  • memory/2736-16-0x00000000000C0000-0x00000000000C1000-memory.dmp
    Filesize

    4KB

  • memory/2736-54-0x00000000001E0000-0x00000000001E1000-memory.dmp
    Filesize

    4KB