Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 12:58

General

  • Target

    d925123b49f1202422b46e8d3db2941d96d5c33970aa74a58055f15d644958ca.exe

  • Size

    838KB

  • MD5

    1eb1d37928ffa971a4c74c965bc9e88e

  • SHA1

    d3d3cb7b02d7c2699650b4adb19cd4d41c8cfe45

  • SHA256

    d925123b49f1202422b46e8d3db2941d96d5c33970aa74a58055f15d644958ca

  • SHA512

    ccd895d36ac7a8136e739b99e78820447a3d739797cdf517cf407642af0ae2511fce3cbfafe461c1e1280f4ac64cb455a4dc78c6f29f06a8c7f6fd8fba514a98

  • SSDEEP

    12288:qoxy8TP40QeYKbQ4wgMUMDSH+Mf3vW9RLGAcypv69CiGc1uWxU8p557:qWtTP4a1dMDSHytGvMY/qOUa55

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

customersservicebx.uni.me:2121

Mutex

DCMIN_MUTEX-UZ6AB7L

Attributes
  • gencode

    s8XX3Rqr3xKD

  • 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
  • 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\d925123b49f1202422b46e8d3db2941d96d5c33970aa74a58055f15d644958ca.exe
    "C:\Users\Admin\AppData\Local\Temp\d925123b49f1202422b46e8d3db2941d96d5c33970aa74a58055f15d644958ca.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1840
    • 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:992
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.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:1976
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Acctres.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:872
        • 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:1304
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\WUDHost.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          PID:1992

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    838KB

    MD5

    1eb1d37928ffa971a4c74c965bc9e88e

    SHA1

    d3d3cb7b02d7c2699650b4adb19cd4d41c8cfe45

    SHA256

    d925123b49f1202422b46e8d3db2941d96d5c33970aa74a58055f15d644958ca

    SHA512

    ccd895d36ac7a8136e739b99e78820447a3d739797cdf517cf407642af0ae2511fce3cbfafe461c1e1280f4ac64cb455a4dc78c6f29f06a8c7f6fd8fba514a98

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

    Filesize

    838KB

    MD5

    1eb1d37928ffa971a4c74c965bc9e88e

    SHA1

    d3d3cb7b02d7c2699650b4adb19cd4d41c8cfe45

    SHA256

    d925123b49f1202422b46e8d3db2941d96d5c33970aa74a58055f15d644958ca

    SHA512

    ccd895d36ac7a8136e739b99e78820447a3d739797cdf517cf407642af0ae2511fce3cbfafe461c1e1280f4ac64cb455a4dc78c6f29f06a8c7f6fd8fba514a98

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

    Filesize

    7KB

    MD5

    2c62f37716a62494ce5f45810719a3fc

    SHA1

    2887e7d8db8ad0bbc0cbe9de6c8359185c80c04d

    SHA256

    51a00bf16cd01366357158cb76090db39af00bd839945f435b751f8b8037d07c

    SHA512

    c10b8e2fb53522a2b816b1d9703799654ff0396c6f4b85fd5c0d7567e520f023e4fcf50658fac928ca7c472d17d345e246b4c78a5d04e2572b68d4ecb128e667

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

    Filesize

    7KB

    MD5

    2c62f37716a62494ce5f45810719a3fc

    SHA1

    2887e7d8db8ad0bbc0cbe9de6c8359185c80c04d

    SHA256

    51a00bf16cd01366357158cb76090db39af00bd839945f435b751f8b8037d07c

    SHA512

    c10b8e2fb53522a2b816b1d9703799654ff0396c6f4b85fd5c0d7567e520f023e4fcf50658fac928ca7c472d17d345e246b4c78a5d04e2572b68d4ecb128e667

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

    Filesize

    7KB

    MD5

    2c62f37716a62494ce5f45810719a3fc

    SHA1

    2887e7d8db8ad0bbc0cbe9de6c8359185c80c04d

    SHA256

    51a00bf16cd01366357158cb76090db39af00bd839945f435b751f8b8037d07c

    SHA512

    c10b8e2fb53522a2b816b1d9703799654ff0396c6f4b85fd5c0d7567e520f023e4fcf50658fac928ca7c472d17d345e246b4c78a5d04e2572b68d4ecb128e667

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

    Filesize

    7KB

    MD5

    2c62f37716a62494ce5f45810719a3fc

    SHA1

    2887e7d8db8ad0bbc0cbe9de6c8359185c80c04d

    SHA256

    51a00bf16cd01366357158cb76090db39af00bd839945f435b751f8b8037d07c

    SHA512

    c10b8e2fb53522a2b816b1d9703799654ff0396c6f4b85fd5c0d7567e520f023e4fcf50658fac928ca7c472d17d345e246b4c78a5d04e2572b68d4ecb128e667

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

    Filesize

    838KB

    MD5

    1eb1d37928ffa971a4c74c965bc9e88e

    SHA1

    d3d3cb7b02d7c2699650b4adb19cd4d41c8cfe45

    SHA256

    d925123b49f1202422b46e8d3db2941d96d5c33970aa74a58055f15d644958ca

    SHA512

    ccd895d36ac7a8136e739b99e78820447a3d739797cdf517cf407642af0ae2511fce3cbfafe461c1e1280f4ac64cb455a4dc78c6f29f06a8c7f6fd8fba514a98

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

    Filesize

    7KB

    MD5

    2c62f37716a62494ce5f45810719a3fc

    SHA1

    2887e7d8db8ad0bbc0cbe9de6c8359185c80c04d

    SHA256

    51a00bf16cd01366357158cb76090db39af00bd839945f435b751f8b8037d07c

    SHA512

    c10b8e2fb53522a2b816b1d9703799654ff0396c6f4b85fd5c0d7567e520f023e4fcf50658fac928ca7c472d17d345e246b4c78a5d04e2572b68d4ecb128e667

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

    Filesize

    7KB

    MD5

    2c62f37716a62494ce5f45810719a3fc

    SHA1

    2887e7d8db8ad0bbc0cbe9de6c8359185c80c04d

    SHA256

    51a00bf16cd01366357158cb76090db39af00bd839945f435b751f8b8037d07c

    SHA512

    c10b8e2fb53522a2b816b1d9703799654ff0396c6f4b85fd5c0d7567e520f023e4fcf50658fac928ca7c472d17d345e246b4c78a5d04e2572b68d4ecb128e667

  • memory/872-91-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/872-90-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/872-87-0x0000000000000000-mapping.dmp

  • memory/992-67-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-73-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-72-0x000000000048F888-mapping.dmp

  • memory/992-57-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-71-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-69-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-80-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-62-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-82-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-58-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-84-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-60-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-66-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/992-64-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1304-109-0x000000000048F888-mapping.dmp

  • memory/1304-116-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/1840-54-0x0000000076401000-0x0000000076403000-memory.dmp

    Filesize

    8KB

  • memory/1840-92-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/1840-56-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/1840-55-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/1976-83-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/1976-93-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/1976-81-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/1976-76-0x0000000000000000-mapping.dmp

  • memory/1992-114-0x0000000000000000-mapping.dmp

  • memory/1992-119-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB

  • memory/1992-120-0x0000000074EA0000-0x000000007544B000-memory.dmp

    Filesize

    5.7MB