Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22/07/2024, 22:39

General

  • Target

    6514941d256a48e46e81a83923b006a7_JaffaCakes118.exe

  • Size

    1.2MB

  • MD5

    6514941d256a48e46e81a83923b006a7

  • SHA1

    484b14c4b8390ca60ff9f6a0b8c9ec17d2f00658

  • SHA256

    18ce12cddd466ba96a7ba44b34cae65fa5ec5c299eee2f6610b52d067b644b01

  • SHA512

    32984fa2dc64b968d52eeb814e6f736b6e4584e9da4087809c252a7970a5504b465d50b816cecb8319fff590c97e6fdd4c73889bfa72a32e4644a3d7e92b9b59

  • SSDEEP

    24576:f1bk4301Z/8s1XJd5FPIZfxWw7iDZhn3uW6X0u8nAfOOtXqi/sUYCiQ/:f5krZBjd5NR+W6XrFqiEnQ/

Malware Config

Extracted

Family

darkcomet

Botnet

all

C2

127.0.0.1:1604

gogo.no-ip.biz:1604

Mutex

DC_MUTEX-YR63DF3

Attributes
  • InstallPath

    MSDCSC\mscos.exe

  • gencode

    ahcGXcs4bPs8

  • install

    true

  • offline_keylogger

    true

  • password

    46637

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6514941d256a48e46e81a83923b006a7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6514941d256a48e46e81a83923b006a7_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:3020
    • C:\Windows\SysWOW64\MSDCSC\mscos.exe
      "C:\Windows\system32\MSDCSC\mscos.exe"
      2⤵
      • Modifies security service
      • Windows security bypass
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Windows security modification
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1284
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
          PID:2680

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Windows\SysWOW64\MSDCSC\mscos.exe

      Filesize

      1.2MB

      MD5

      6514941d256a48e46e81a83923b006a7

      SHA1

      484b14c4b8390ca60ff9f6a0b8c9ec17d2f00658

      SHA256

      18ce12cddd466ba96a7ba44b34cae65fa5ec5c299eee2f6610b52d067b644b01

      SHA512

      32984fa2dc64b968d52eeb814e6f736b6e4584e9da4087809c252a7970a5504b465d50b816cecb8319fff590c97e6fdd4c73889bfa72a32e4644a3d7e92b9b59

    • memory/1284-76-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-74-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-81-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-80-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-79-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-78-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-82-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-77-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-75-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-27-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-73-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-72-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-83-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-71-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-26-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/1284-70-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-12-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-10-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-0-0x0000000000668000-0x0000000000799000-memory.dmp

      Filesize

      1.2MB

    • memory/2148-2-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-22-0x0000000007B90000-0x0000000007F29000-memory.dmp

      Filesize

      3.6MB

    • memory/2148-23-0x0000000007B90000-0x0000000007F29000-memory.dmp

      Filesize

      3.6MB

    • memory/2148-7-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-8-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-9-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-29-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-1-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-11-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-6-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-4-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-5-0x0000000000400000-0x0000000000798515-memory.dmp

      Filesize

      3.6MB

    • memory/2148-3-0x0000000000401000-0x000000000044F000-memory.dmp

      Filesize

      312KB

    • memory/2680-31-0x00000000000C0000-0x00000000000C1000-memory.dmp

      Filesize

      4KB

    • memory/2680-69-0x0000000000220000-0x0000000000221000-memory.dmp

      Filesize

      4KB