Analysis

  • max time kernel
    150s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 23:50

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 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\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:2188
    • 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:2556
      • 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:2492
        • 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:2876
          • 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:2620
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\VCUEQQRM.bat" "
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2576
              • 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:1692
        • 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:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    151B

    MD5

    cac890d00365d07b9ca89def17cc3a36

    SHA1

    6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

    SHA256

    4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

    SHA512

    124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

    Filesize

    520KB

    MD5

    a62f4c189f860da9fc6ab75100ee7921

    SHA1

    4f5c349b73a7a35ec0475d21c1fd1166591d753f

    SHA256

    f15c08d91cf2220eeebaeedd7b641adb41ad596dbae1398a831d3b24a7c85591

    SHA512

    92545e104f38bbb9ddc67490e5b54cea26321ae8accea6f89fac5a2c338768fecd7d6305cacdf987e76f20897be3dd50bef5dee2f4a7795afbfbbe3b138b0097

  • memory/2188-18-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2188-3-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2188-2-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2188-17-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2492-44-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2492-59-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2492-58-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2492-72-0x0000000000400000-0x0000000000483000-memory.dmp

    Filesize

    524KB

  • memory/2556-4-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2556-6-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2556-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2556-14-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2556-66-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2556-8-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2620-70-0x00000000000C0000-0x00000000000C1000-memory.dmp

    Filesize

    4KB

  • memory/2876-78-0x0000000000400000-0x0000000000407000-memory.dmp

    Filesize

    28KB

  • memory/2928-46-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-80-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-62-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-61-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-51-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-73-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-54-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-56-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-69-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-60-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-49-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-79-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-63-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-81-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-82-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-83-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-84-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-86-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-87-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-88-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-89-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-90-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-91-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-92-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-93-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/2928-94-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB