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
    12-11-2024 01:18

General

  • Target

    35508885f58f8ed3817de9d3f8166808a61558f055c3c50b4c9964a8c70c1eec.exe

  • Size

    520KB

  • MD5

    f5fbc433f561df9781299e25de76a492

  • SHA1

    00155e13f82b8bbebb98ee3f2a389e9d8be59c9f

  • SHA256

    35508885f58f8ed3817de9d3f8166808a61558f055c3c50b4c9964a8c70c1eec

  • SHA512

    6ef4f00b7087a1e3b34e037da00e0b3544fe37896f6d289211c68b332aa0ec38bb50ee0f360f7cf44cac0935b433ec1722233983acc298666e3d23b48b1a556a

  • SSDEEP

    6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbS:f9fC3hh29Ya77A90aFtDfT5IMbS

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 21 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\35508885f58f8ed3817de9d3f8166808a61558f055c3c50b4c9964a8c70c1eec.exe
    "C:\Users\Admin\AppData\Local\Temp\35508885f58f8ed3817de9d3f8166808a61558f055c3c50b4c9964a8c70c1eec.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2524
    • C:\Users\Admin\AppData\Local\Temp\35508885f58f8ed3817de9d3f8166808a61558f055c3c50b4c9964a8c70c1eec.exe
      "C:\Users\Admin\AppData\Local\Temp\35508885f58f8ed3817de9d3f8166808a61558f055c3c50b4c9964a8c70c1eec.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2956
      • 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:2988
        • 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:2904
          • 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:2780
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\HRIFTXJK.bat" "
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1044
              • 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:1720
        • 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:2808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    151B

    MD5

    cac890d00365d07b9ca89def17cc3a36

    SHA1

    6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

    SHA256

    4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

    SHA512

    124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

    Filesize

    520KB

    MD5

    dd103ae6b40ceb104feb2e6fcb115ba9

    SHA1

    ab80ce1bea0b6473363dee6910d013516ab7dfc3

    SHA256

    fd6de9ed6cf6405a0a9f70d317424367cb308add854f54af440a512deea3237a

    SHA512

    2f71bf51c40a1880c7e21479379ba45fa597e543b864756945435cd79ceb10f3af82ddef79a0efcc54082c6975522e71d9bbfb4685dfdebbd31932c52f47bdc0

  • memory/2524-18-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2524-3-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2524-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2524-20-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2780-67-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2808-66-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-59-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-88-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-50-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-53-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-71-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-86-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-70-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-69-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-89-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-93-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-55-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-84-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-76-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-90-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-77-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-91-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-78-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2808-82-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2904-80-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2904-75-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2956-6-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2956-4-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2956-14-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2956-74-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2956-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2956-8-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2988-43-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2988-83-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2988-63-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2988-32-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2988-64-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB