Analysis

  • max time kernel
    73s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 22:45

General

  • Target

    97a28d1db426330fe5cc63fd0cc8899c_JaffaCakes118.exe

  • Size

    753KB

  • MD5

    97a28d1db426330fe5cc63fd0cc8899c

  • SHA1

    81ac8739ae6597e28e77b2409584ac6d5faf121a

  • SHA256

    dcdb6199ff4eadc06388a23facc08ae86268b76740bebbdac6189dac4d88d053

  • SHA512

    c194586f9722a4696074fa409154462bc08556905bed0b338eed2b01c3acc43e024bc166905d33d92f629036b6421bff88aa3cf7ceaf41a419a58c4b09731d2c

  • SSDEEP

    12288:bQ0dz71sFAFZpuAHRamLqlgyGr5PLIG4qD2v30hT7whhT5Jg:bn7eFAHVPGCr5PLIGJiv0hT87TTg

Malware Config

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\97a28d1db426330fe5cc63fd0cc8899c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\97a28d1db426330fe5cc63fd0cc8899c_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\97a28d1db426330fe5cc63fd0cc8899c_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\97a28d1db426330fe5cc63fd0cc8899c_JaffaCakes118.exe
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1128
      • C:\Users\Admin\AppData\Local\Temp\97a28d1db426330fe5cc63fd0cc8899c_JaffaCakes118.exe
        3⤵
        • Modifies WinLogon for persistence
        • Checks BIOS information in registry
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of WriteProcessMemory
        PID:2220
        • C:\Windows\SysWOW64\Windowsupdate\winupdate.exe
          "C:\Windows\system32\Windowsupdate\winupdate.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2976
          • C:\Windows\SysWOW64\Windowsupdate\winupdate.exe
            C:\Windows\SysWOW64\Windowsupdate\winupdate.exe
            5⤵
              PID:1968
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat" "
            4⤵
            • Deletes itself
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2828
            • C:\Windows\SysWOW64\PING.EXE
              ping 127.0.0.1 -n 2
              5⤵
              • System Location Discovery: System Language Discovery
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:2536

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      119B

      MD5

      c1cc596d46ebee47fee2335a8418fe65

      SHA1

      16db1c3fb3ea311979f1900cd58c674ba52b594c

      SHA256

      f76103e65c985ff15c28617e1186b2887f7d8ea8aa45b74b14a591da9586c44b

      SHA512

      3ba5d73ba846768df614ed5b79cb929f6c4583bc649465305e1720f50fa6afbf760e79888155f2345e9134a6ec889bae5042c9a4d3d0d742c7ef98c6e5ac216c

    • \Windows\SysWOW64\Windowsupdate\winupdate.exe

      Filesize

      753KB

      MD5

      97a28d1db426330fe5cc63fd0cc8899c

      SHA1

      81ac8739ae6597e28e77b2409584ac6d5faf121a

      SHA256

      dcdb6199ff4eadc06388a23facc08ae86268b76740bebbdac6189dac4d88d053

      SHA512

      c194586f9722a4696074fa409154462bc08556905bed0b338eed2b01c3acc43e024bc166905d33d92f629036b6421bff88aa3cf7ceaf41a419a58c4b09731d2c

    • memory/1128-0-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/1128-4-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/1128-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1128-10-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/1128-3-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/1128-16-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/1128-35-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/2116-14-0x0000000000400000-0x000000000040F000-memory.dmp

      Filesize

      60KB

    • memory/2220-28-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-21-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-25-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-27-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-26-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-24-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-23-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-31-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-36-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-38-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-37-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-39-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-34-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-19-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2220-60-0x0000000000400000-0x00000000004C1000-memory.dmp

      Filesize

      772KB

    • memory/2976-65-0x0000000000400000-0x000000000040F000-memory.dmp

      Filesize

      60KB