Analysis

  • max time kernel
    205s
  • max time network
    101s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:38

General

  • Target

    8b555ed9942d3bd85ebe92054e2eeb62da2c2ae42e6bf4bff10b493ed3368664.exe

  • Size

    833KB

  • MD5

    8e8a606820a6f66e7963b330764cf559

  • SHA1

    96a5a61510042f2f1cf1ce0ed659fc0cf8d70e48

  • SHA256

    8b555ed9942d3bd85ebe92054e2eeb62da2c2ae42e6bf4bff10b493ed3368664

  • SHA512

    1a56aa7923b4ba706c179d1066739a36662c6896e24a33e0dd897b03b2ac11d75df8e0cbf27a02522f45e44e3c84977679df0194e5a0ad6146719b66a5211aac

  • SSDEEP

    12288:bEJC79h+G6Mr8i+Y1Xx6qDNQXkdQRlYtyIAo5evUoRNuhjEQyMmFaLB0Ckg9WsF:bXhDR82nokdQjYZAoIcoRNWdAaLnkmF

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

markgraham.noip.me:2124

Mutex

DCMIN_MUTEX-FUSP59W

Attributes
  • gencode

    Le3UD9gfvz8p

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • 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). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b555ed9942d3bd85ebe92054e2eeb62da2c2ae42e6bf4bff10b493ed3368664.exe
    "C:\Users\Admin\AppData\Local\Temp\8b555ed9942d3bd85ebe92054e2eeb62da2c2ae42e6bf4bff10b493ed3368664.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:760
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:560
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1132
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:360
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      PID:908

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    833KB

    MD5

    8e8a606820a6f66e7963b330764cf559

    SHA1

    96a5a61510042f2f1cf1ce0ed659fc0cf8d70e48

    SHA256

    8b555ed9942d3bd85ebe92054e2eeb62da2c2ae42e6bf4bff10b493ed3368664

    SHA512

    1a56aa7923b4ba706c179d1066739a36662c6896e24a33e0dd897b03b2ac11d75df8e0cbf27a02522f45e44e3c84977679df0194e5a0ad6146719b66a5211aac

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    833KB

    MD5

    8e8a606820a6f66e7963b330764cf559

    SHA1

    96a5a61510042f2f1cf1ce0ed659fc0cf8d70e48

    SHA256

    8b555ed9942d3bd85ebe92054e2eeb62da2c2ae42e6bf4bff10b493ed3368664

    SHA512

    1a56aa7923b4ba706c179d1066739a36662c6896e24a33e0dd897b03b2ac11d75df8e0cbf27a02522f45e44e3c84977679df0194e5a0ad6146719b66a5211aac

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe

    Filesize

    17KB

    MD5

    fd03ff313a655e0b59dce81044bc6341

    SHA1

    0fa0dc26876f636956c3de82685bdbbc8ad3ef86

    SHA256

    1f1c8c1458eaee47a448513db52ddb536406146d48793c3c24f41eb72b13cec9

    SHA512

    00fdf54987cb8abd0c68619e02991aeb50e5509ea56b0e5fa613ac29fddcc57c585cd0e5be055cb5c6563828b6a631666fe6e7004dada7607ddd903659264ddd

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe

    Filesize

    17KB

    MD5

    fd03ff313a655e0b59dce81044bc6341

    SHA1

    0fa0dc26876f636956c3de82685bdbbc8ad3ef86

    SHA256

    1f1c8c1458eaee47a448513db52ddb536406146d48793c3c24f41eb72b13cec9

    SHA512

    00fdf54987cb8abd0c68619e02991aeb50e5509ea56b0e5fa613ac29fddcc57c585cd0e5be055cb5c6563828b6a631666fe6e7004dada7607ddd903659264ddd

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe

    Filesize

    17KB

    MD5

    fd03ff313a655e0b59dce81044bc6341

    SHA1

    0fa0dc26876f636956c3de82685bdbbc8ad3ef86

    SHA256

    1f1c8c1458eaee47a448513db52ddb536406146d48793c3c24f41eb72b13cec9

    SHA512

    00fdf54987cb8abd0c68619e02991aeb50e5509ea56b0e5fa613ac29fddcc57c585cd0e5be055cb5c6563828b6a631666fe6e7004dada7607ddd903659264ddd

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe

    Filesize

    833KB

    MD5

    8e8a606820a6f66e7963b330764cf559

    SHA1

    96a5a61510042f2f1cf1ce0ed659fc0cf8d70e48

    SHA256

    8b555ed9942d3bd85ebe92054e2eeb62da2c2ae42e6bf4bff10b493ed3368664

    SHA512

    1a56aa7923b4ba706c179d1066739a36662c6896e24a33e0dd897b03b2ac11d75df8e0cbf27a02522f45e44e3c84977679df0194e5a0ad6146719b66a5211aac

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\IpOverUsbSvrc.exe

    Filesize

    17KB

    MD5

    fd03ff313a655e0b59dce81044bc6341

    SHA1

    0fa0dc26876f636956c3de82685bdbbc8ad3ef86

    SHA256

    1f1c8c1458eaee47a448513db52ddb536406146d48793c3c24f41eb72b13cec9

    SHA512

    00fdf54987cb8abd0c68619e02991aeb50e5509ea56b0e5fa613ac29fddcc57c585cd0e5be055cb5c6563828b6a631666fe6e7004dada7607ddd903659264ddd

  • memory/360-116-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/360-112-0x000000000048F888-mapping.dmp

  • memory/560-66-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-84-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-71-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-72-0x000000000048F888-mapping.dmp

  • memory/560-73-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-57-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-67-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-75-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-62-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-82-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-64-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/560-69-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/760-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

    Filesize

    8KB

  • memory/760-55-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/760-56-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/908-117-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/908-96-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/908-93-0x0000000000000000-mapping.dmp

  • memory/1132-87-0x0000000000000000-mapping.dmp

  • memory/1132-91-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1132-90-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1740-92-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1740-83-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB

  • memory/1740-77-0x0000000000000000-mapping.dmp

  • memory/1740-81-0x00000000744E0000-0x0000000074A8B000-memory.dmp

    Filesize

    5.7MB