Analysis

  • max time kernel
    82s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 00:13

General

  • Target

    JaffaCakes118_76820646e34735e5c96dc6a213721e3e.exe

  • Size

    679KB

  • MD5

    76820646e34735e5c96dc6a213721e3e

  • SHA1

    a686538a25ddbd0bd80034ccee2e2e81d16e8bf3

  • SHA256

    e350b3b114a4de8395368a5a333ce71a2037aaa9685eae8f0c946c2d461e5f9f

  • SHA512

    5ee7dbd8f9e1aa1b68fe5005d35a6e7a1ec064da1baf695a8459660a5d49943acf7d208be2646dd2d8a7a20b0fe57932db33484e87b7ea28180a46dbaff01f7b

  • SSDEEP

    12288:24av+00DAsSQvZ+6pocqQIcyvjSiyjRCmCwrLD+BEsK4HY9YNVzYKj86syB05Nl:24ZDAGv/ocqQIVjyjTrL6uCvNpYOcl

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
  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • 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 8 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 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 6 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76820646e34735e5c96dc6a213721e3e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76820646e34735e5c96dc6a213721e3e.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2664
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76820646e34735e5c96dc6a213721e3e.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76820646e34735e5c96dc6a213721e3e.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2572
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2616
      • C:\Windupdt\winupdate.exe
        "C:\Windupdt\winupdate.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Writes to the Master Boot Record (MBR)
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2632
        • C:\Windupdt\winupdate.exe
          "C:\Windupdt\winupdate.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2944
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_76820646e34735e5c96dc6a213721e3e.exe"
        3⤵
        • Deletes itself
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:1872
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 5
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:264

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windupdt\winupdate.exe

    Filesize

    679KB

    MD5

    76820646e34735e5c96dc6a213721e3e

    SHA1

    a686538a25ddbd0bd80034ccee2e2e81d16e8bf3

    SHA256

    e350b3b114a4de8395368a5a333ce71a2037aaa9685eae8f0c946c2d461e5f9f

    SHA512

    5ee7dbd8f9e1aa1b68fe5005d35a6e7a1ec064da1baf695a8459660a5d49943acf7d208be2646dd2d8a7a20b0fe57932db33484e87b7ea28180a46dbaff01f7b

  • memory/2632-61-0x0000000000400000-0x000000000074E000-memory.dmp

    Filesize

    3.3MB

  • memory/2632-51-0x0000000000EC0000-0x000000000120E000-memory.dmp

    Filesize

    3.3MB

  • memory/2632-52-0x0000000000EC0000-0x000000000120E000-memory.dmp

    Filesize

    3.3MB

  • memory/2632-53-0x0000000000EC0000-0x000000000120E000-memory.dmp

    Filesize

    3.3MB

  • memory/2632-47-0x0000000000400000-0x000000000074E000-memory.dmp

    Filesize

    3.3MB

  • memory/2664-34-0x0000000000400000-0x000000000074E000-memory.dmp

    Filesize

    3.3MB

  • memory/2664-0-0x0000000000400000-0x000000000074E000-memory.dmp

    Filesize

    3.3MB

  • memory/2664-29-0x0000000000850000-0x0000000000851000-memory.dmp

    Filesize

    4KB

  • memory/2664-28-0x0000000000860000-0x0000000000861000-memory.dmp

    Filesize

    4KB

  • memory/2664-27-0x0000000000830000-0x0000000000831000-memory.dmp

    Filesize

    4KB

  • memory/2664-26-0x0000000000840000-0x0000000000841000-memory.dmp

    Filesize

    4KB

  • memory/2664-2-0x0000000000790000-0x0000000000791000-memory.dmp

    Filesize

    4KB

  • memory/2664-24-0x0000000000820000-0x0000000000821000-memory.dmp

    Filesize

    4KB

  • memory/2664-23-0x0000000000400000-0x000000000074E000-memory.dmp

    Filesize

    3.3MB

  • memory/2664-22-0x00000000007B0000-0x00000000007B1000-memory.dmp

    Filesize

    4KB

  • memory/2664-21-0x00000000007C0000-0x00000000007C1000-memory.dmp

    Filesize

    4KB

  • memory/2664-19-0x00000000007A0000-0x00000000007A1000-memory.dmp

    Filesize

    4KB

  • memory/2664-18-0x0000000000300000-0x0000000000301000-memory.dmp

    Filesize

    4KB

  • memory/2664-17-0x0000000000390000-0x0000000000391000-memory.dmp

    Filesize

    4KB

  • memory/2664-16-0x00000000002D0000-0x00000000002D1000-memory.dmp

    Filesize

    4KB

  • memory/2664-15-0x00000000002F0000-0x00000000002F1000-memory.dmp

    Filesize

    4KB

  • memory/2664-14-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2664-13-0x00000000002C0000-0x00000000002C1000-memory.dmp

    Filesize

    4KB

  • memory/2664-12-0x0000000000760000-0x0000000000761000-memory.dmp

    Filesize

    4KB

  • memory/2664-11-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2664-10-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2664-9-0x0000000000750000-0x0000000000751000-memory.dmp

    Filesize

    4KB

  • memory/2664-30-0x0000000000870000-0x0000000000871000-memory.dmp

    Filesize

    4KB

  • memory/2664-32-0x0000000003EE0000-0x000000000422E000-memory.dmp

    Filesize

    3.3MB

  • memory/2664-4-0x00000000007A0000-0x00000000007A1000-memory.dmp

    Filesize

    4KB

  • memory/2664-7-0x00000000003E0000-0x00000000003E1000-memory.dmp

    Filesize

    4KB

  • memory/2664-6-0x0000000000250000-0x0000000000260000-memory.dmp

    Filesize

    64KB

  • memory/2664-1-0x00000000003F0000-0x00000000003F3000-memory.dmp

    Filesize

    12KB

  • memory/2664-3-0x00000000007A0000-0x00000000007A1000-memory.dmp

    Filesize

    4KB

  • memory/2664-25-0x0000000000810000-0x0000000000811000-memory.dmp

    Filesize

    4KB

  • memory/2664-20-0x0000000000790000-0x0000000000791000-memory.dmp

    Filesize

    4KB

  • memory/2832-31-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2832-35-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2832-44-0x00000000037B0000-0x0000000003AFE000-memory.dmp

    Filesize

    3.3MB

  • memory/2832-42-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2832-73-0x00000000037B0000-0x0000000003AFE000-memory.dmp

    Filesize

    3.3MB

  • memory/2944-66-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-77-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-72-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-71-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-70-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-76-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-60-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-68-0x0000000000B40000-0x0000000000E8E000-memory.dmp

    Filesize

    3.3MB

  • memory/2944-75-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-74-0x0000000000B40000-0x0000000000E8E000-memory.dmp

    Filesize

    3.3MB

  • memory/2944-69-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-67-0x0000000000B40000-0x0000000000E8E000-memory.dmp

    Filesize

    3.3MB

  • memory/2944-78-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-79-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-80-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-81-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-82-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-83-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-84-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-85-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-86-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-87-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/2944-88-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB