Analysis

  • max time kernel
    142s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/06/2024, 15:56

General

  • Target
    02cabbff47b4a547c15cebbc76619cef_JaffaCakes118.dll
  • Size 483KB
  • Sample240622-tdh65starb
  • SHA256 f2e9375f210583dc3f2c06400a4deb996f8b9b80cf518169aeebe60a48c33fbb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

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

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

  • Modifies Internet Explorer settings 1 TTPs 49 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\02cabbff47b4a547c15cebbc76619cef_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2920
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\02cabbff47b4a547c15cebbc76619cef_JaffaCakes118.dll
      2⤵
      • Adds Run key to start application
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:2552
  • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
    "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
    1⤵
      PID:1064
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4092 CREDAT:17410 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1248

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
          • Size 471B
          • SHA256 7e65804748310831cd8d58de2c6c1917cd75ee004ffeb74b6b876dc8aa840f83
          • MD5 SHA1 SHA512

          7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
          • Size 404B
          • SHA256 aaf4392e459990a40e3ba2c21cbb75fbb35e1fcad42eae9753ea107c31c3438f
          • MD5 SHA1 SHA512

          verC5F0.tmp

          • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verC5F0.tmp
          • Size 15KB
          • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
          • MD5 SHA1 SHA512 SSDEEP

          httpErrorPagesScripts[2]

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\4NMOWK91\httpErrorPagesScripts[2]
          • Size 11KB
          • SHA256 65cc039890c7ceb927ce40f6f199d74e49b8058c3f8a6e22e8f916ad90ea8649
          • MD5 SHA1 SHA512 SSDEEP

          suggestions[1].en-US

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\AKM56LDW\suggestions[1].en-US
          • Size 17KB
          • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
          • MD5 SHA1 SHA512 SSDEEP

          errorPageStrings[1]

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\LU15KQ7Y\errorPageStrings[1]
          • Size 4KB
          • SHA256 a1270e90cea31b46432ec44731bf4400d22b38eb2855326bf934fe8f1b169a4f
          • MD5 SHA1 SHA512 SSDEEP