Analysis

  • max time kernel
    140s
  • max time network
    111s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/07/2024, 04:55

General

  • Target

    3c0c23f38683dff14ce4a256267ee6ae_JaffaCakes118.exe

  • Size

    107KB

  • MD5

    3c0c23f38683dff14ce4a256267ee6ae

  • SHA1

    9f53699ce44ce4f5caabbe2c1ef9ea04a3ec83a5

  • SHA256

    4b0db9bb3f19f618461dcc9a6d4ed6e10bea4ffb8fbf1a2a1e56c52b6877cbbd

  • SHA512

    81776c595b36a70cb03293cac32eb52ff221cc564fe2a00c46eb39c0f8558c8fd05a1620b329b47832c5710c8e34082ecfdd65f6a5ffbc40fc47c477174cd702

  • SSDEEP

    3072:Q3hjK35Q6XhhvUXVzLgOKUbkc4BV0wXaTbNjKQGklIvi:Q3hwvLUX1jKUbktL2bNjK1ku

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Modifies Control Panel 8 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c0c23f38683dff14ce4a256267ee6ae_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\3c0c23f38683dff14ce4a256267ee6ae_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Checks processor information in registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\.ttBF77.tmp.vbs"
      2⤵
        PID:2928
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:5108
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:532
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:3
      1⤵
        PID:1588

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\.ttBF77.tmp.vbs

        Filesize

        1002B

        MD5

        9df700c8f6fd43fac0a89aef04214bbd

        SHA1

        6ec8bc6d4041ccf19757757c0da6592469f71c57

        SHA256

        9ab6f2c3cc3965cd05f81d859bdfac3b25a5e70178f61ea677d31987c4e142fd

        SHA512

        8bbcd322f3998c0f7d81884737ca313c1353ac7e3899f168fc8d44eafbe064193353b8b16f92113288ff2102c47623b542861440c414b8acf36d75c4ad645d4d

      • C:\Windows\SysWOW64\blphc38jj0ele5.scr

        Filesize

        59KB

        MD5

        538f9ead95eba12134d95b4fe7082331

        SHA1

        527c50b92b5cededdd5b7e3edda71cb13d108dac

        SHA256

        a416bab39037854c14540edaaf80cff7b5f2e9db31eee235527574e8dedd54e6

        SHA512

        4631ff7cf868348585ee0e26591b95be3ee8b232c7980f5013f4464f285b0fbdef41794c44cb8653d6fb6dc815c0c0a9f4af780bfeb9b23d2f4c3bdc62bf4581

      • memory/2344-0-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/2344-3-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/2344-1-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/2344-2-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/2344-4-0x0000000000700000-0x0000000000730000-memory.dmp

        Filesize

        192KB

      • memory/2344-5-0x0000000000401000-0x000000000040A000-memory.dmp

        Filesize

        36KB

      • memory/2344-17-0x0000000002FC0000-0x0000000003074000-memory.dmp

        Filesize

        720KB

      • memory/2344-18-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB