Analysis

  • max time kernel
    51s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 20:05

General

  • Target

    1713b5fdee97c58d84b89fbd03027e5910abbe9161565eda9582978a5b004534.exe

  • Size

    124KB

  • MD5

    fdf2aa35eec94826bf194b26a14333a7

  • SHA1

    0f42453ec14c4eede0941b929bd817e60b976d51

  • SHA256

    1713b5fdee97c58d84b89fbd03027e5910abbe9161565eda9582978a5b004534

  • SHA512

    fb2ffa4ac4e090d7ee2a6f524ab65aa5cd28b68d0de0964ef79960e663467327d497fcb1b0cd696e304321a6dd3c5b68a1472d6fa7ec91fcec97d74faa4b9579

  • SSDEEP

    3072:EmeDmBqskJgCbrX0PRy9ULy1MzyV+U+GLtaRhf6FOhdz:E8QbL0PRcQyV+AL6g8hdz

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • 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 2 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1713b5fdee97c58d84b89fbd03027e5910abbe9161565eda9582978a5b004534.exe
    "C:\Users\Admin\AppData\Local\Temp\1713b5fdee97c58d84b89fbd03027e5910abbe9161565eda9582978a5b004534.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1220
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\system32\regsvr32.exe" /s "C:\Program Files (x86)\Common Files\PushWare\cpush.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:268

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Common Files\PushWare\cpush.dll

    Filesize

    196KB

    MD5

    e4669fa29a5390df0704c8107fca71b4

    SHA1

    2696a62ba5821578c7672766e70bbace715f597d

    SHA256

    95c5f7c4b8f235e38d071d6139a18629af633441db0d9b323affc1292b92e165

    SHA512

    bcca7a81cad87c6ece5b2e9963603fb448b6242772685ebba4623a8ef9916975e41a7295de6eea22bb9ea5e66998259455d1bf4a9087116c5102dff3b76e32e9

  • \Program Files (x86)\Common Files\PushWare\cpush.dll

    Filesize

    196KB

    MD5

    e4669fa29a5390df0704c8107fca71b4

    SHA1

    2696a62ba5821578c7672766e70bbace715f597d

    SHA256

    95c5f7c4b8f235e38d071d6139a18629af633441db0d9b323affc1292b92e165

    SHA512

    bcca7a81cad87c6ece5b2e9963603fb448b6242772685ebba4623a8ef9916975e41a7295de6eea22bb9ea5e66998259455d1bf4a9087116c5102dff3b76e32e9

  • memory/1220-54-0x0000000075A91000-0x0000000075A93000-memory.dmp

    Filesize

    8KB