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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 10:46

General

  • Target

    eb2ba2961217aa0d3adce1c6fb6ae553_JaffaCakes118.exe

  • Size

    64KB

  • MD5

    eb2ba2961217aa0d3adce1c6fb6ae553

  • SHA1

    ef8829aea2db1e26b3bcfa54b748dc6b0a122c18

  • SHA256

    ba5f5a58bbbbedc8a08cae86577f23d9133f1e52535aeb2fa22d2b41c87d7ecd

  • SHA512

    acb013640acb7dd740a63fc9f1f67f66b9971d72566c9070c390799f972fe5988b7ca675086f4e43a5e91a68f98b643b0947e63d2951fee4ca453abf0644deb4

  • SSDEEP

    1536:q46AgSWwVJ+KEQnMCSYJHFGskQb+W2V0aQ8Iac:PISWgJdEQnAYZZaW+0hac

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Modifies registry class 54 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb2ba2961217aa0d3adce1c6fb6ae553_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eb2ba2961217aa0d3adce1c6fb6ae553_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1860
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c echo Y|cacls C:\Windows\system32\2211.dll /g everyone:f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4796
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:868
      • C:\Windows\SysWOW64\cacls.exe
        cacls C:\Windows\system32\2211.dll /g everyone:f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3984
    • C:\Windows\SysWOW64\attrib.exe
      "C:\Windows\System32\attrib.exe" -r -a -s -h C:\Windows\system32\2211.dll
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:4124
    • C:\Windows\SysWOW64\attrib.exe
      "C:\Windows\System32\attrib.exe" +r +a +s +h C:\Windows\system32\2211.dll
      2⤵
      • Sets file to hidden
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:2172
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c echo Y|cacls C:\Windows\system32\2211.dll /g everyone:r
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3828
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:896
      • C:\Windows\SysWOW64\cacls.exe
        cacls C:\Windows\system32\2211.dll /g everyone:r
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3488
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c regsvr32 /s C:\Windows\system32\2211.dll
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3428
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s C:\Windows\system32\2211.dll
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:3740

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\2211.dll

    Filesize

    15KB

    MD5

    ec7a5c23ad0518cc6f5e5187745095f5

    SHA1

    bc5ca3ff815898410afd826b9fb6c00d1a17c2cc

    SHA256

    67496507d88979d512790939f31471f1e38dce1c699467fef11afd94e80e772e

    SHA512

    03a173c1ecd3552637324c1d52ec73a178df53748f36b61085931e636618b422ffd200e62aa70c60245c6e7f7d7d090b0232956937aeb5df5bb1b90ddc6f2b72

  • memory/1860-0-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1860-11-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/1860-18-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/3740-10-0x0000000011000000-0x0000000011013000-memory.dmp

    Filesize

    76KB