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Analysis

  • max time kernel
    120s
  • max time network
    38s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05/09/2024, 17:55

General

  • Target

    cbeb96fb1e02d1f50a6d5319ec6eb460N.exe

  • Size

    284KB

  • MD5

    cbeb96fb1e02d1f50a6d5319ec6eb460

  • SHA1

    d8e56d7321936f1b8aae77bb66ef16751f421dd7

  • SHA256

    1aa212eb78cdffde7c302f586ce3d2849d79914f428f56988ee759c790604bb5

  • SHA512

    be390a0e77480840d337b5417492eac468c43bb1c31a55e5051505c7c0315e8d1bbcd9b2163077d6a0b79393219b82159ed96cdae59354b48a5a0a9ba2c8ddbe

  • SSDEEP

    6144:PtqYGLbcMQgKO3HTOnNRS4O23Ra/MzxDnunDbu:Ptqx5KO3zONkpwRGMNDEO

Malware Config

Signatures

  • Darkcomet

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

  • 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.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • UPX packed file 25 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 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 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.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cbeb96fb1e02d1f50a6d5319ec6eb460N.exe
    "C:\Users\Admin\AppData\Local\Temp\cbeb96fb1e02d1f50a6d5319ec6eb460N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2108
    • C:\Users\Admin\AppData\Local\Temp\cbeb96fb1e02d1f50a6d5319ec6eb460N.exe
      "C:\Users\Admin\AppData\Local\Temp\cbeb96fb1e02d1f50a6d5319ec6eb460N.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:3068
      • 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:1108
        • 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:2784
      • C:\JavaRE\Update.exe
        "C:\JavaRE\Update.exe"
        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:2800
        • C:\JavaRE\Update.exe
          "C:\JavaRE\Update.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2556
      • 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\cbeb96fb1e02d1f50a6d5319ec6eb460N.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:2740
        • 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:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \JavaRE\Update.exe

    Filesize

    284KB

    MD5

    cbeb96fb1e02d1f50a6d5319ec6eb460

    SHA1

    d8e56d7321936f1b8aae77bb66ef16751f421dd7

    SHA256

    1aa212eb78cdffde7c302f586ce3d2849d79914f428f56988ee759c790604bb5

    SHA512

    be390a0e77480840d337b5417492eac468c43bb1c31a55e5051505c7c0315e8d1bbcd9b2163077d6a0b79393219b82159ed96cdae59354b48a5a0a9ba2c8ddbe

  • memory/2108-50-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/2108-0-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/2556-38-0x0000000000230000-0x0000000000279000-memory.dmp

    Filesize

    292KB

  • memory/2556-44-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-59-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-58-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-57-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-55-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-56-0x0000000000230000-0x0000000000279000-memory.dmp

    Filesize

    292KB

  • memory/2556-54-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-41-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-52-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-35-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-47-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-39-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-45-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-43-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-37-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-40-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-31-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2556-42-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/2800-51-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/2800-24-0x0000000000840000-0x0000000000889000-memory.dmp

    Filesize

    292KB

  • memory/2800-20-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/2800-36-0x00000000004C0000-0x0000000000509000-memory.dmp

    Filesize

    292KB

  • memory/2800-23-0x0000000000840000-0x0000000000889000-memory.dmp

    Filesize

    292KB

  • memory/3068-8-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3068-17-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3068-3-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3068-4-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3068-5-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3068-9-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3068-6-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB

  • memory/3068-7-0x0000000000400000-0x00000000004B9000-memory.dmp

    Filesize

    740KB