Analysis

  • max time kernel
    120s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 23:48

General

  • Target

    354e7c77e46144d71b496b4ff182fdc6c55a993a7de7a9f42448754299afc40d.exe

  • Size

    520KB

  • MD5

    e18ab3843fa32dd1daf0575f3831fb17

  • SHA1

    115854eaa8e45adcd9e3a863bd9872349cfe90d3

  • SHA256

    354e7c77e46144d71b496b4ff182fdc6c55a993a7de7a9f42448754299afc40d

  • SHA512

    66f809581db6ee5cdfad8c32391e330e29b72ea51ec47dab0fc978b999ab5b918c63dea58f11e0be11400191e87e939257893bcdffc4f9e22e7b99ff561932e4

  • SSDEEP

    6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMb4:f9fC3hh29Ya77A90aFtDfT5IMb4

Malware Config

Extracted

Family

darkcomet

Botnet

PrivateEye

C2

ratblackshades.no-ip.biz:1604

Mutex

DC_MUTEX-ACC1R98

Attributes
  • gencode

    8GG5LVVGljSF

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 24 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\354e7c77e46144d71b496b4ff182fdc6c55a993a7de7a9f42448754299afc40d.exe
    "C:\Users\Admin\AppData\Local\Temp\354e7c77e46144d71b496b4ff182fdc6c55a993a7de7a9f42448754299afc40d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Users\Admin\AppData\Local\Temp\354e7c77e46144d71b496b4ff182fdc6c55a993a7de7a9f42448754299afc40d.exe
      "C:\Users\Admin\AppData\Local\Temp\354e7c77e46144d71b496b4ff182fdc6c55a993a7de7a9f42448754299afc40d.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2844
        • C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2988
          • C:\Windows\SysWOW64\ipconfig.exe
            "C:\Windows\system32\ipconfig.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            • Gathers network information
            • Suspicious use of WriteProcessMemory
            PID:2676
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\HAPHQNHC.bat" "
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2592
              • C:\Windows\SysWOW64\reg.exe
                REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinUpdate /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray" /f
                7⤵
                • Adds Run key to start application
                • System Location Discovery: System Language Discovery
                • Modifies registry key
                PID:2928
        • C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    151B

    MD5

    cac890d00365d07b9ca89def17cc3a36

    SHA1

    6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

    SHA256

    4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

    SHA512

    124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

  • \Users\Admin\AppData\Roaming\Microsoft\winupd.exe

    Filesize

    520KB

    MD5

    9d7c6ca35394b472213fa350550b3388

    SHA1

    f8615a29c185eec83c1c80653314406444ab23a5

    SHA256

    dc444fcdb72a0bb27163c71695007f20d300c80ba397a34c2f5bad1ea1677bb9

    SHA512

    09599aceefc9d0efbf1178e40de76789d9381e7b901f49b0cd637f70ae1a14fd3edae9f1e85af7d1a6b9d397036884f79024a4083f0f36d366d73eb4caf7db8d

  • memory/2040-5-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2040-7-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2040-19-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2040-65-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2040-3-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2040-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2636-71-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-75-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-90-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-89-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-62-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-93-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-84-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-59-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-56-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-53-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-51-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-49-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-88-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-73-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-72-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-76-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-91-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-94-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-86-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-82-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2636-83-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2676-69-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2844-34-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2844-81-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2844-35-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2844-61-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2988-80-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/3052-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3052-14-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3052-17-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3052-18-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/3052-20-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB