Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    28-02-2021 09:17

General

  • Target

    1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe

  • Size

    755KB

  • MD5

    2641515da5144daf7c7058dbff699a23

  • SHA1

    d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

  • SHA256

    1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

  • SHA512

    81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

Malware Config

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 6 IoCs
  • UPX packed file 2 IoCs

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

  • Loads dropped DLL 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 26 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe
    "C:\Users\Admin\AppData\Local\Temp\1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      "C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe"
      2⤵
      • Executes dropped EXE
      PID:1432
    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      "C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe"
      2⤵
      • Executes dropped EXE
      PID:1752
    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      "C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe"
      2⤵
      • Executes dropped EXE
      PID:1660
    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      "C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe"
      2⤵
      • Executes dropped EXE
      PID:1664
    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      "C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe"
      2⤵
      • Executes dropped EXE
      PID:1064
    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      "C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1036
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:756

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Winlogon Helper DLL

    1
    T1004

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • C:\Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • \Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • \Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • \Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • \Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • \Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • \Users\Admin\AppData\Local\Temp\ZhsTj7roVMp1HTa9\svhoes.exe
      MD5

      2641515da5144daf7c7058dbff699a23

      SHA1

      d16ad4ecb43e0294e51ad6b8341cb973b957c7e6

      SHA256

      1a42d231b435bfc734280c5f42764bf32f4d8cfb6a6e6e22ae9d577c9f3720c8

      SHA512

      81d5d23c6eda42dd4c0bda3dbf5df76198669e72fde6a4de8e769c66285806050e208f32f72fa781d4c9e4709250cb13ce5ee67f99bd695869fd060943caf576

    • memory/756-20-0x0000000000000000-mapping.dmp
    • memory/756-21-0x0000000000250000-0x0000000000251000-memory.dmp
      Filesize

      4KB

    • memory/1036-15-0x0000000000400000-0x00000000004B7000-memory.dmp
      Filesize

      732KB

    • memory/1036-16-0x00000000004B56E0-mapping.dmp
    • memory/1036-24-0x00000000002F0000-0x00000000002F1000-memory.dmp
      Filesize

      4KB

    • memory/1036-23-0x0000000000400000-0x00000000004B7000-memory.dmp
      Filesize

      732KB

    • memory/1668-2-0x0000000074B31000-0x0000000074B33000-memory.dmp
      Filesize

      8KB

    • memory/1668-3-0x00000000002C0000-0x00000000002C1000-memory.dmp
      Filesize

      4KB