Analysis

  • max time kernel
    120s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    04-08-2024 23:10

General

  • Target

    18a211d12eaed4e3bf7a70af05ea49a0N.exe

  • Size

    324KB

  • MD5

    18a211d12eaed4e3bf7a70af05ea49a0

  • SHA1

    a68cbc3efb8a5d5a8a790f52153be7970743de29

  • SHA256

    46fb2d4dfe0f33b2e07f806174768bb81724000025faf487d593bb7ad2f7b2ef

  • SHA512

    d937da7312156504e3ba6bb52d0cb4247a2b7e25a87e3300bbd09dc409c25928fa968e74e945b54cd0492378285b37cf1f93ec1c399ed622edc7c43166d5a51f

  • 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.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 IoCs
  • UPX packed file 29 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).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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\18a211d12eaed4e3bf7a70af05ea49a0N.exe
    "C:\Users\Admin\AppData\Local\Temp\18a211d12eaed4e3bf7a70af05ea49a0N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:708
    • C:\Users\Admin\AppData\Local\Temp\18a211d12eaed4e3bf7a70af05ea49a0N.exe
      "C:\Users\Admin\AppData\Local\Temp\18a211d12eaed4e3bf7a70af05ea49a0N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\BVTRW.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2804
        • 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
          • System Location Discovery: System Language Discovery
          PID:2684
      • C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe
        "C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2864
        • C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe
          "C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:976
        • C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe
          "C:\Users\Admin\AppData\Roaming\Xpers\Gpers.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\BVTRW.bat

    Filesize

    144B

    MD5

    1967df2848438f32a1572914428221ae

    SHA1

    cd88b3e8351f3685c22a2db7f67e5b9b2777fa13

    SHA256

    1236575bc8ddb8a9e4509ce7491a67ca57c14c9f1a5bed19e23e4bd721a99574

    SHA512

    b16afa9bd878c4ddfccc6765c25e2774e3e1b9a65c06f18de1a048ea73e110aa41ffd4fb0d24ce3c13c792766e273459b3217a0275ea652646b648d9c6bf6dd3

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

    Filesize

    324KB

    MD5

    c94c0a9dc1d0b4d7c341db951523fb37

    SHA1

    0943951a0a26d13bd84508245994ff0cfe65b0d3

    SHA256

    720c595ae7332e0ba14a2807733d1458a7aedbf97dd2ec4413013d48a9f70738

    SHA512

    46137a879d0baecebb6aa18da3297a20f0087bc7c8228f72c319b76f08b51bc0e7e85f9571856f5f0864ea27efe4552e7216bc0fada28c29c266c1c7ac512a48

  • memory/708-2-0x000000000044D000-0x000000000044E000-memory.dmp

    Filesize

    4KB

  • memory/708-3-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/708-13-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/976-77-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/976-97-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2328-16-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2328-8-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2328-15-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2328-4-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2328-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2328-18-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2328-90-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2328-12-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2328-6-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2412-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-96-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-116-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-81-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-72-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-76-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-94-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-93-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-95-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-91-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-114-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-98-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-100-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-102-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-104-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-106-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-108-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-110-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2412-112-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2864-61-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2864-86-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB