Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22-10-2024 20:36

General

  • Target

    1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe

  • Size

    520KB

  • MD5

    ba49416551a9167e624a8edbfa630140

  • SHA1

    1ba7883e87d8841dfb2fd33dfce3aa08f4ddcef2

  • SHA256

    1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630

  • SHA512

    facf64b14db184efb38646d65431c993a0647790187c7fb218b434fee92afd0d3c5bec5e914272fd7920e52d8dea5e67586caae175a196345ceedfa68d905247

  • SSDEEP

    6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMb+:f9fC3hh29Ya77A90aFtDfT5IMb+

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.

  • 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 27 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\1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
    "C:\Users\Admin\AppData\Local\Temp\1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2292
    • C:\Users\Admin\AppData\Local\Temp\1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe
      "C:\Users\Admin\AppData\Local\Temp\1109beeb061d774b0a516ea4385f029390c24de0ccc2afd56ecd9c5cb3093630N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:292
      • 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:2256
        • 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:2232
          • 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:2704
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\VPHNUGGT.bat" "
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2932
              • 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:2624
        • 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:2968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    151B

    MD5

    cac890d00365d07b9ca89def17cc3a36

    SHA1

    6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

    SHA256

    4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

    SHA512

    124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

    Filesize

    520KB

    MD5

    1311e78f405ddc2a8b118c4634d79080

    SHA1

    0021b4f0da6b0a5ea277ff6dd0ad49ee3cc69290

    SHA256

    81447df1e89024804a5c766526f880453ab25179ac706267f3b8dff951cf1e52

    SHA512

    88afefaa4f889daf12a6796b312247fe976fd30542dabaa36183add9777d98bba258386b3f39c27280b1f5fb9ad5aeec8d38d72fa76e8b3e2307b16aa32a554c

  • memory/292-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/292-19-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/292-65-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/292-9-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/292-7-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/292-5-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2232-81-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2256-34-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2256-69-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2256-44-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2256-61-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2292-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2292-4-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2292-3-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2292-20-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2292-18-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2704-70-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2968-77-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-83-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-53-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-72-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-62-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-73-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-60-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-75-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-76-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-55-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-51-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-82-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-58-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-84-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-86-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-88-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-89-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-90-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-91-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-93-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-94-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-95-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-96-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2968-97-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB