Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-04-2024 02:19

General

  • Target

    ac1f09d0a797d231ac40d98c74851efbb1325d8c6351ddc251e0369c2f20c0ac.exe

  • Size

    324KB

  • MD5

    1da9d5eb17a25c1dcd2d7028867904aa

  • SHA1

    b75ab89bcf8306b9ef6d222478a004aba32ecd7f

  • SHA256

    ac1f09d0a797d231ac40d98c74851efbb1325d8c6351ddc251e0369c2f20c0ac

  • SHA512

    68b49d817d381fdd4d108f9b86c8aeb4a743000247878412c30d671be78d9eb3c019db62a4cc61f207e556389b9b3ff012f1e4c77d822ea42132f6aa292a94d2

  • SSDEEP

    6144:cvhFCYZdP5aHNn1s7C+3S4R5wQrV/YbZwZ3ssu4eqswN8s1Pf4NAGy5uRyXR6P+R:TQdwHNn1OCN4MQEZwUqsA

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

betclock.zapto.org:35000

Mutex

DC_MUTEX-LCQCVNZ

Attributes
  • gencode

    MGDU5FhLNYez

  • install

    false

  • offline_keylogger

    true

  • password

    0123456789

  • persistence

    false

Signatures

  • Darkcomet

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

  • UPX dump on OEP (original entry point) 29 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 31 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 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 SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac1f09d0a797d231ac40d98c74851efbb1325d8c6351ddc251e0369c2f20c0ac.exe
    "C:\Users\Admin\AppData\Local\Temp\ac1f09d0a797d231ac40d98c74851efbb1325d8c6351ddc251e0369c2f20c0ac.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Users\Admin\AppData\Local\Temp\ac1f09d0a797d231ac40d98c74851efbb1325d8c6351ddc251e0369c2f20c0ac.exe
      "C:\Users\Admin\AppData\Local\Temp\ac1f09d0a797d231ac40d98c74851efbb1325d8c6351ddc251e0369c2f20c0ac.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2300
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\QDFAA.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2612
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Support GFX" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe" /f
          4⤵
          • Adds Run key to start application
          PID:2672
      • C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe
        "C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2616
        • C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe
          "C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2508
        • C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe
          "C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2248

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\QDFAA.bat
    Filesize

    144B

    MD5

    1967df2848438f32a1572914428221ae

    SHA1

    cd88b3e8351f3685c22a2db7f67e5b9b2777fa13

    SHA256

    1236575bc8ddb8a9e4509ce7491a67ca57c14c9f1a5bed19e23e4bd721a99574

    SHA512

    b16afa9bd878c4ddfccc6765c25e2774e3e1b9a65c06f18de1a048ea73e110aa41ffd4fb0d24ce3c13c792766e273459b3217a0275ea652646b648d9c6bf6dd3

  • \Users\Admin\AppData\Roaming\Xpers\Gpers.exe
    Filesize

    324KB

    MD5

    c12626b5146ef258948b949a966fea2f

    SHA1

    08737a905946a60ff1bcdab43ddce558be2e8f8b

    SHA256

    7283b05bd580e15af53017fd671056a44b43819176172eaff76e42d2318a0377

    SHA512

    12d9e91671a1ca5e2bafad87a8b8c50b13e0fd1fbe15e28e7e9730a9660beabb8e3e53bb04ed7e40b6a8d661d531cb785324927f75dbabba172684f9b4894e93

  • memory/2248-100-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-96-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-111-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-107-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-119-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-105-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-103-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-101-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-115-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-98-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-113-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-71-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-95-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-91-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-78-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-82-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-85-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-87-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-117-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-109-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-76-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-92-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2248-94-0x0000000000260000-0x0000000000261000-memory.dmp
    Filesize

    4KB

  • memory/2248-93-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/2300-7-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2300-3-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2300-5-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2300-16-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2300-17-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2300-14-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2300-11-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2300-89-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2300-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2508-73-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2508-97-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/2616-60-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2616-88-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2976-2-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB

  • memory/2976-13-0x0000000000400000-0x0000000000453000-memory.dmp
    Filesize

    332KB