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Analysis

  • max time kernel
    154s
  • max time network
    98s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 19:56

General

  • Target

    a45f2cfac684b87635a67fcd3ec67a46b5dda029574f5f3f3ca3c9381a3929c1.exe

  • Size

    1.0MB

  • MD5

    8bc0e7d1a78d454caaa87d3b7caa92c3

  • SHA1

    d0135e2e13f0d13aa2c49fb0d78f987f8d9ad67f

  • SHA256

    a45f2cfac684b87635a67fcd3ec67a46b5dda029574f5f3f3ca3c9381a3929c1

  • SHA512

    237016f4e9dd9b6a10359926caf886aea96595b20e87117b316019151e361895ba5ae10efd13f1c3066bc07ef4746d9ef59f857da7a6adc5966f75fbfebc4454

  • SSDEEP

    24576:s4SRmIAZ6QGs1ikSHP5hs10Ot1LisENzP:s4SZO5SvOtVisEJP

Malware Config

Extracted

Family

darkcomet

Botnet

V2

C2

spamblocker.no-ip.biz:1604

Mutex

DC_MUTEX-NZ2A7W0

Attributes
  • gencode

    ji6MMZDpnHyq

  • 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 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 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 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a45f2cfac684b87635a67fcd3ec67a46b5dda029574f5f3f3ca3c9381a3929c1.exe
    "C:\Users\Admin\AppData\Local\Temp\a45f2cfac684b87635a67fcd3ec67a46b5dda029574f5f3f3ca3c9381a3929c1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:432
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\pspluginwkr.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\pspluginwkr.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:1476
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\winresume.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\winresume.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1760
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\AppLaunch.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1072
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\pspluginwkr.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\pspluginwkr.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:1340

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    15KB

    MD5

    99e0106f89c12144cd3c82216382e110

    SHA1

    44e1640b98b27aca3530d41a7b853c73172623fc

    SHA256

    4bef292be3b4fc87d7300408032886248e6bcfa002d3c5e48b7e47d6fedc78c5

    SHA512

    3b6d8f7679896ab1e69ae94025162116397c8adcf46a95c30dd54b2f8f95e0fc6adc9f068e5ecd4ed070084c646e12368588511756374c62c7525bf3b91e10ab

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

    Filesize

    15KB

    MD5

    99e0106f89c12144cd3c82216382e110

    SHA1

    44e1640b98b27aca3530d41a7b853c73172623fc

    SHA256

    4bef292be3b4fc87d7300408032886248e6bcfa002d3c5e48b7e47d6fedc78c5

    SHA512

    3b6d8f7679896ab1e69ae94025162116397c8adcf46a95c30dd54b2f8f95e0fc6adc9f068e5ecd4ed070084c646e12368588511756374c62c7525bf3b91e10ab

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

    Filesize

    15KB

    MD5

    99e0106f89c12144cd3c82216382e110

    SHA1

    44e1640b98b27aca3530d41a7b853c73172623fc

    SHA256

    4bef292be3b4fc87d7300408032886248e6bcfa002d3c5e48b7e47d6fedc78c5

    SHA512

    3b6d8f7679896ab1e69ae94025162116397c8adcf46a95c30dd54b2f8f95e0fc6adc9f068e5ecd4ed070084c646e12368588511756374c62c7525bf3b91e10ab

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

    Filesize

    15KB

    MD5

    99e0106f89c12144cd3c82216382e110

    SHA1

    44e1640b98b27aca3530d41a7b853c73172623fc

    SHA256

    4bef292be3b4fc87d7300408032886248e6bcfa002d3c5e48b7e47d6fedc78c5

    SHA512

    3b6d8f7679896ab1e69ae94025162116397c8adcf46a95c30dd54b2f8f95e0fc6adc9f068e5ecd4ed070084c646e12368588511756374c62c7525bf3b91e10ab

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

    Filesize

    1.0MB

    MD5

    8bc0e7d1a78d454caaa87d3b7caa92c3

    SHA1

    d0135e2e13f0d13aa2c49fb0d78f987f8d9ad67f

    SHA256

    a45f2cfac684b87635a67fcd3ec67a46b5dda029574f5f3f3ca3c9381a3929c1

    SHA512

    237016f4e9dd9b6a10359926caf886aea96595b20e87117b316019151e361895ba5ae10efd13f1c3066bc07ef4746d9ef59f857da7a6adc5966f75fbfebc4454

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

    Filesize

    1.0MB

    MD5

    8bc0e7d1a78d454caaa87d3b7caa92c3

    SHA1

    d0135e2e13f0d13aa2c49fb0d78f987f8d9ad67f

    SHA256

    a45f2cfac684b87635a67fcd3ec67a46b5dda029574f5f3f3ca3c9381a3929c1

    SHA512

    237016f4e9dd9b6a10359926caf886aea96595b20e87117b316019151e361895ba5ae10efd13f1c3066bc07ef4746d9ef59f857da7a6adc5966f75fbfebc4454

  • C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch

    Filesize

    514B

    MD5

    6f1c3c0810784a0f8fa27ba8b591aec0

    SHA1

    6cc59cd62dc0cdd6ef2637acbca2b1b50939b469

    SHA256

    dd0f90728819e68e329127be04e110b836bfacec645a9d9d1853cea144b152fd

    SHA512

    4c9300fcb171952c21fcaef61b76e9ea3433cca3c71f546f3c603167205beba781ce75cb30742d368b1320dd0d9b91ec248d929be9ea9d0da7f2401ae1bc6b05

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

    Filesize

    15KB

    MD5

    99e0106f89c12144cd3c82216382e110

    SHA1

    44e1640b98b27aca3530d41a7b853c73172623fc

    SHA256

    4bef292be3b4fc87d7300408032886248e6bcfa002d3c5e48b7e47d6fedc78c5

    SHA512

    3b6d8f7679896ab1e69ae94025162116397c8adcf46a95c30dd54b2f8f95e0fc6adc9f068e5ecd4ed070084c646e12368588511756374c62c7525bf3b91e10ab

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

    Filesize

    15KB

    MD5

    99e0106f89c12144cd3c82216382e110

    SHA1

    44e1640b98b27aca3530d41a7b853c73172623fc

    SHA256

    4bef292be3b4fc87d7300408032886248e6bcfa002d3c5e48b7e47d6fedc78c5

    SHA512

    3b6d8f7679896ab1e69ae94025162116397c8adcf46a95c30dd54b2f8f95e0fc6adc9f068e5ecd4ed070084c646e12368588511756374c62c7525bf3b91e10ab

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

    Filesize

    1.0MB

    MD5

    8bc0e7d1a78d454caaa87d3b7caa92c3

    SHA1

    d0135e2e13f0d13aa2c49fb0d78f987f8d9ad67f

    SHA256

    a45f2cfac684b87635a67fcd3ec67a46b5dda029574f5f3f3ca3c9381a3929c1

    SHA512

    237016f4e9dd9b6a10359926caf886aea96595b20e87117b316019151e361895ba5ae10efd13f1c3066bc07ef4746d9ef59f857da7a6adc5966f75fbfebc4454

  • memory/432-83-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-73-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-75-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-77-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-67-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-57-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-69-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-66-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-91-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-64-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-62-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/432-71-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1072-117-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1340-125-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/1340-123-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/1476-84-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/1476-92-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/1476-94-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/1760-93-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/1760-90-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/2044-54-0x0000000075881000-0x0000000075883000-memory.dmp

    Filesize

    8KB

  • memory/2044-56-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/2044-55-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB

  • memory/2044-124-0x0000000074AF0000-0x000000007509B000-memory.dmp

    Filesize

    5.7MB