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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
    08/10/2024, 21:34

General

  • Target

    25c4ae65e08b895279d287fa70cd0a53_JaffaCakes118.exe

  • Size

    634KB

  • MD5

    25c4ae65e08b895279d287fa70cd0a53

  • SHA1

    2e21ecd493dd724e18727cfe3a833033dcc8bb8e

  • SHA256

    c206f93178517a08a5058271ad32c50769b4e2acd289411017324b87eaa4b42a

  • SHA512

    2da6dc8fb00e80cbaef9952d424ffd0d5e354835ed6457e106db4ebab5a57a95b785a7c2e75d045c2e67e4201a32217ec7455b3667ac6e76f7a061331673712a

  • SSDEEP

    12288:L9pNG4GjeZHkwuPikQ7lKH5p5H9x1WeZHkwuHi/QrlKd5pnxlMlfA:LZG4GjeZEXi37l6Br1WeZEfiYrleffM2

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\25c4ae65e08b895279d287fa70cd0a53_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\25c4ae65e08b895279d287fa70cd0a53_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:2592
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 "C:\Program Files (x86)\MediaWatchV1\MediaWatchV1home436\ie\MediaWatchV1home436.dll" /s
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2020
    • C:\Windows\SysWOW64\gpupdate.exe
      "C:\Windows\System32\gpupdate.exe" /force
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Program Files (x86)\MediaWatchV1\MediaWatchV1home436\ie\MediaWatchV1home436.dll

    Filesize

    85KB

    MD5

    7ce83b41c6fef1c1c851123023a6321a

    SHA1

    e92db6bd21240a01810b9a06189646933c6d649f

    SHA256

    ec2e3324dbcc6d97a5c05309b24729a388137868a78e8b548e9cad430045d806

    SHA512

    aaf23bc5ec71ea4c716bf8c7a3a96996051800673ada095b1617e81d176ed7ab3f36b41efd166cb07268a7706bff4c1030dc6cd314861e36b3cd06c7d5f48501

  • \Users\Admin\AppData\Local\Temp\nsyD5B7.tmp\aminsis.dll

    Filesize

    559KB

    MD5

    51ba1095f0ae45a2d444bea506cb9ad4

    SHA1

    038a5d53d055a6d440bd2c8864c2f51db206c5e5

    SHA256

    b620091bf9973e807e12155d2247a6d233b5d13ec38c426675470ab4b26f0539

    SHA512

    f5fe2dd0f19bcaab47540ceedbec71f7f7c5b833c8772c097594c458e5f1101fe9feb849812b65c175055f71dfb13f11c4ad94fef42cd66f247413e453de3361