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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06/10/2024, 09:34

General

  • Target

    178a210830c126b829b41485b57b7010_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    178a210830c126b829b41485b57b7010

  • SHA1

    7218a2aa55355489e71e6233ecc4abfe23e91c6e

  • SHA256

    38c2ea46ee7490f1c6fc686828c643a5576a58774f2bd75711aaba280e8ff058

  • SHA512

    42253c8ae7abd0f8850a8a15300205b118b94eccda421e51c9f5c72638d6fa19160a385f7119891387dd8d52a20634646aff65ca75bdf6c28baebafe2a55e516

  • SSDEEP

    12288:Z2q5ZMKONbQG4GjeZHkwuPikQ7lKH5p5H9x1WeZHkwuDivQhlKL5p/xlolff:Z2mZM0G4GjeZEXi37l6Br1WeZE7iohlP

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\178a210830c126b829b41485b57b7010_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\178a210830c126b829b41485b57b7010_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:2296
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home667\ie\MediaWatchV1home667.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:1332
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2920

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home667\ie\MediaWatchV1home667.dll

    Filesize

    85KB

    MD5

    cc42da76f4f56b26e0fc453e5fd12586

    SHA1

    53a658622cd936c6f54edf0c5d1adcb02facd1b9

    SHA256

    3d75ff0edad68fe5a061fc991d24ae2d2b91b85f477460dc8b544e346999be3f

    SHA512

    122a14046a1229be8569cdf29e12c51c6b4fb06780618ded65e637f4f743a7eaf9dd44bcee4a37b8003c5b847f33b13d018db4225a0b81d4c90f530494bd5963

  • \Users\Admin\AppData\Local\Temp\nsjB472.tmp\aminsis.dll

    Filesize

    559KB

    MD5

    51ba1095f0ae45a2d444bea506cb9ad4

    SHA1

    038a5d53d055a6d440bd2c8864c2f51db206c5e5

    SHA256

    b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

    SHA512

    f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361