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Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18/10/2024, 12:27

General

  • Target

    576dde4a8590b02882d5ab6b0e4f8e33_JaffaCakes118.exe

  • Size

    657KB

  • MD5

    576dde4a8590b02882d5ab6b0e4f8e33

  • SHA1

    9c98a377684919ce06cb716c84c5125006c5befb

  • SHA256

    bec0c91940afed9991f50da3f77b5ea77fd9f96a9b5ead592d7598257f40c823

  • SHA512

    fba4aad0f9e5afad377f8aec4e60896b15af192c11ebeec928d030998b9683c86d92a2050c449c7dbc24795d2cad1258fe803beb3854f46b08e8dcdbf38a160d

  • SSDEEP

    12288:mYhUq9EG4GQTq4OaQQTYJ8eP4/L5uO7D3f5Bnq4Wa/QTKJ8eP9/75uO7eU266Ba:mNQEG4GQm4OaHYJ8eP4D5uOHBBq4Waek

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\576dde4a8590b02882d5ab6b0e4f8e33_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\576dde4a8590b02882d5ab6b0e4f8e33_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:1972
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release6215\ie\RichMediaViewV1release6215.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2144
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\RichMediaViewV1\RichMediaViewV1release6215\ie\RichMediaViewV1release6215.dll

    Filesize

    85KB

    MD5

    a8dba3d5e0bd9338706b7026a5f4b558

    SHA1

    45a152b4ee2b609940558f983f17d71f0aa720bd

    SHA256

    77b21edf0f6037b7c8d9af93e5cce4f6a8de7c8354d7fa4ef573f9ae79690ca6

    SHA512

    dba1d60a4a52ffaf49f4ade1bdfdc821b2809cb783e6d9726b5016d53f07bca9fc77c0f707103d972d240f292c9745281173cd19b05ba37333b767872d448b24

  • C:\Users\Admin\AppData\Local\Temp\nso9AF9.tmp\aminsis.dll

    Filesize

    567KB

    MD5

    450753ad96785a240a39deccab3af0d0

    SHA1

    21c544064d2ffa6444508268ce258a330d459fc5

    SHA256

    1c371dcc6c3428ea98fb0d2dcb612b4ebc731f3ed72e683c8e33058cd2a952d3

    SHA512

    c41b834f4228b7668316095569c836b4e0d55c5fbf310c65b0e0453ef0e74a3ce8f9357cea90b80f6590f85dd7708eeb4eec27518811ea4aab20c0e7f5643dab