Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 03:59

General

  • Target

    eaaa292d5dab7597d974f6e1a70bcd4de00e9e7865743e8b4e8ecfaae3d897eb.exe

  • Size

    520KB

  • MD5

    7ea4a354c7c848972320054efd3c529a

  • SHA1

    debd3e529067e549af4cad18133ca492ecdf9a06

  • SHA256

    eaaa292d5dab7597d974f6e1a70bcd4de00e9e7865743e8b4e8ecfaae3d897eb

  • SHA512

    1d596865ffe9c93b2ac1abc9f6fcdc1fd35b00690ca8dae9b3fd2dd33dbf68e5d9cc2eb759a6440bfb72aa49b37a816dcc823360612a8f70bf43a27ba37b0e31

  • SSDEEP

    6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMb9:f9fC3hh29Ya77A90aFtDfT5IMb9

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 4 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\eaaa292d5dab7597d974f6e1a70bcd4de00e9e7865743e8b4e8ecfaae3d897eb.exe
    "C:\Users\Admin\AppData\Local\Temp\eaaa292d5dab7597d974f6e1a70bcd4de00e9e7865743e8b4e8ecfaae3d897eb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2788
    • C:\Users\Admin\AppData\Local\Temp\eaaa292d5dab7597d974f6e1a70bcd4de00e9e7865743e8b4e8ecfaae3d897eb.exe
      "C:\Users\Admin\AppData\Local\Temp\eaaa292d5dab7597d974f6e1a70bcd4de00e9e7865743e8b4e8ecfaae3d897eb.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2836
      • C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2732
        • 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:2760
          • 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:2864
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\EAWOUNDN.bat" "
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1976
              • 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:2868
        • 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:2600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    151B

    MD5

    cac890d00365d07b9ca89def17cc3a36

    SHA1

    6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

    SHA256

    4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

    SHA512

    124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

    Filesize

    520KB

    MD5

    1dd8933b2d432199fb080832cb3e5289

    SHA1

    481d1daa7a1ac11ee21a8e9fc24d66678a40af26

    SHA256

    ad3ac380c680cc8d5c7cf22188cf5b233cd3b56abd31e027c91a6d4fe83f7b78

    SHA512

    3a58eb8c95833b2716212bb7be04857dcd3529b096a6b8f2dd232aa17842b4af209265c6990b3524b2b2739976880033febd6e222c0d4fbeb9d268ce89f790a7

  • memory/2600-73-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-88-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-98-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-76-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-97-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-96-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-91-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-90-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-95-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-62-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-89-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-94-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-75-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-83-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-63-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-60-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-53-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-51-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-49-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-86-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-93-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-79-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-78-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2600-84-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2732-33-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2732-36-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2732-67-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2760-82-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2788-3-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2788-16-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2788-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2788-18-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2788-19-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2836-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2836-70-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2836-8-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2836-4-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2836-6-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2836-14-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2864-71-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB