Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-10-2024 21:01

General

  • Target

    0768f0aa753244c791691b22b21b9322_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    0768f0aa753244c791691b22b21b9322

  • SHA1

    5646c75e07f2e1cea52e4a2e31f27acf056c38fa

  • SHA256

    2adc90962162732b7827e54e065506325637f0d21694c3999082266638036dd8

  • SHA512

    db3a6339b6186c30509beca562fff9d05b7458ead5852be742c3195b2e0c98f2ebe38416e0e95d8ff7dfdf872273274c24f546ec04d082e7f0d19c5035763f7d

  • SSDEEP

    12288:IaVjudG4GQTq4OaQQTYJ8eP4/L5uO7D3f5Bxq4kaBQTcJ8ePx/r5uO7zU26OBe:IQjKG4GQm4OaHYJ8eP4D5uOHBBU4kawV

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 22 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0768f0aa753244c791691b22b21b9322_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0768f0aa753244c791691b22b21b9322_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release1061\ie\RichMediaViewV1release1061.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2696
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2744

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release1061\ie\RichMediaViewV1release1061.dll

    Filesize

    85KB

    MD5

    da3996add3fcb1302c977cdb671f9c49

    SHA1

    6f58b54a112b1b62338bf0fd3e2b8510b3d9f04b

    SHA256

    1b5743cd41fea2cd228b353cc0b7c2186583f5a7ef257cd7636f365e0540370b

    SHA512

    293727e96b8f1b2fd624b00eb3bb4de3b054d6f927e9e8ac6ce0afa5f835b1c0b43c3800e4ba93fba684c39743a5dd0789deeadcc3d9d6889df691509d8ad9f6

  • \Users\Admin\AppData\Local\Temp\nso5977.tmp\aminsis.dll

    Filesize

    567KB

    MD5

    450753ad96785a240a39deccab3af0d0

    SHA1

    21c544064d2ffa6444508268ce258a330d459fc5

    SHA256

    1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

    SHA512

    c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab