Analysis

  • max time kernel
    152s
  • max time network
    167s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/10/2022, 15:03

General

  • Target

    bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe

  • Size

    381KB

  • MD5

    83003c24123609acdec44b1263f6d66d

  • SHA1

    7154c1219a0b151051d930c6cc2063a170425d18

  • SHA256

    bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706

  • SHA512

    7f562d8bde844bc153e1743487c7594c520a2e44b3d732472a140af534c2b68dea4f18144c893196267ff81d22f13c4e6abc7112a27540324ede6ff61054f535

  • SSDEEP

    6144:Gsf/8tS6zpoyWktBnmYAlcw0hvd96/LM69hMNyJwO6:GsX8AYFTtBmYKcD196/oySNyqO6

Malware Config

Extracted

Family

darkcomet

Botnet

CC

C2

212.7.192.244:1337

Mutex

DC_MUTEX-8DTXF5E

Attributes
  • gencode

    lN8zNVYPTGKV

  • 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
  • UPX packed file 18 IoCs

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

  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe
    "C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe
      "C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1600
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\GMRCA.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1324
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "TapNet" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe" /f
          4⤵
          • Adds Run key to start application
          PID:1456
      • C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
        "C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:560
        • C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe
          "C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1536
        • C:\Windows\SysWOW64\svchost.exe
          "C:\Windows\system32\svchost.exe"
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1348

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

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

          Filesize

          144B

          MD5

          517aa80e282d1f1a3ea764d1a5f32ed8

          SHA1

          990331d6b551d436d81f5aac0914b7ed7fa51136

          SHA256

          fc1c4d0d8ea5d27476e23c49b7dacd40cd9dac4763303ad838774984a2bdc81d

          SHA512

          caf370281540e19a15ac5a44204788525fb181f714bf396af2fc3f717e80c132e55e0a0db82e230c8469c29c3ab49f3a697dbb85141201405334b5420540abc7

        • C:\Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe

          Filesize

          381KB

          MD5

          83003c24123609acdec44b1263f6d66d

          SHA1

          7154c1219a0b151051d930c6cc2063a170425d18

          SHA256

          bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706

          SHA512

          7f562d8bde844bc153e1743487c7594c520a2e44b3d732472a140af534c2b68dea4f18144c893196267ff81d22f13c4e6abc7112a27540324ede6ff61054f535

        • C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe

          Filesize

          381KB

          MD5

          c11f85a2b0977f5d0cb82b54a931bdb0

          SHA1

          0f17cebed26a4ab0c590aab40f87c6e60468eafd

          SHA256

          ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493

          SHA512

          8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057

        • C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe

          Filesize

          381KB

          MD5

          c11f85a2b0977f5d0cb82b54a931bdb0

          SHA1

          0f17cebed26a4ab0c590aab40f87c6e60468eafd

          SHA256

          ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493

          SHA512

          8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057

        • C:\Users\Admin\AppData\Roaming\tapinterface\tap.exe

          Filesize

          381KB

          MD5

          c11f85a2b0977f5d0cb82b54a931bdb0

          SHA1

          0f17cebed26a4ab0c590aab40f87c6e60468eafd

          SHA256

          ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493

          SHA512

          8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057

        • \Users\Admin\AppData\Local\Temp\bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706.exe

          Filesize

          381KB

          MD5

          83003c24123609acdec44b1263f6d66d

          SHA1

          7154c1219a0b151051d930c6cc2063a170425d18

          SHA256

          bb7f3eda45f6778f485ba585195cad9cfd7535ea0d5ec26962abafe7034cb706

          SHA512

          7f562d8bde844bc153e1743487c7594c520a2e44b3d732472a140af534c2b68dea4f18144c893196267ff81d22f13c4e6abc7112a27540324ede6ff61054f535

        • \Users\Admin\AppData\Roaming\tapinterface\tap.exe

          Filesize

          381KB

          MD5

          c11f85a2b0977f5d0cb82b54a931bdb0

          SHA1

          0f17cebed26a4ab0c590aab40f87c6e60468eafd

          SHA256

          ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493

          SHA512

          8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057

        • \Users\Admin\AppData\Roaming\tapinterface\tap.exe

          Filesize

          381KB

          MD5

          c11f85a2b0977f5d0cb82b54a931bdb0

          SHA1

          0f17cebed26a4ab0c590aab40f87c6e60468eafd

          SHA256

          ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493

          SHA512

          8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057

        • \Users\Admin\AppData\Roaming\tapinterface\tap.exe

          Filesize

          381KB

          MD5

          c11f85a2b0977f5d0cb82b54a931bdb0

          SHA1

          0f17cebed26a4ab0c590aab40f87c6e60468eafd

          SHA256

          ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493

          SHA512

          8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057

        • \Users\Admin\AppData\Roaming\tapinterface\tap.exe

          Filesize

          381KB

          MD5

          c11f85a2b0977f5d0cb82b54a931bdb0

          SHA1

          0f17cebed26a4ab0c590aab40f87c6e60468eafd

          SHA256

          ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493

          SHA512

          8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057

        • \Users\Admin\AppData\Roaming\tapinterface\tap.exe

          Filesize

          381KB

          MD5

          c11f85a2b0977f5d0cb82b54a931bdb0

          SHA1

          0f17cebed26a4ab0c590aab40f87c6e60468eafd

          SHA256

          ee4f1ddecbfa190fe8bbf87bfa080752fd0ac3bfbdc0148d6f7a3b9b4672d493

          SHA512

          8db757a469f6d191ddacf5fc81d04b4f5a9170005fb93a72b0c0d2daebbb3f86420b976cc47ced983710e63c78c4b5bbcd87fe8bb23e0a3d98f1b784fb548057

        • memory/560-86-0x000000000061F000-0x000000000065D000-memory.dmp

          Filesize

          248KB

        • memory/1008-56-0x00000000005EF000-0x000000000062D000-memory.dmp

          Filesize

          248KB

        • memory/1348-106-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1348-109-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1348-116-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1348-114-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1348-113-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1348-112-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1348-107-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1348-104-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1348-103-0x0000000000400000-0x00000000004BB000-memory.dmp

          Filesize

          748KB

        • memory/1536-115-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1536-101-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-62-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-59-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-67-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-110-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-63-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-68-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-71-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-72-0x0000000075C51000-0x0000000075C53000-memory.dmp

          Filesize

          8KB

        • memory/1600-60-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1600-73-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB