Analysis

  • max time kernel
    151s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 06:51

General

  • Target

    dfca65084e6afddad130b3f2dc23147af29a4cc2656d16e929a418657c28eccd.exe

  • Size

    124KB

  • MD5

    d273b995fcf90662df5ceb03b6749dbc

  • SHA1

    ff501f0dd7bbfa573631299bf8103779c50b0b10

  • SHA256

    dfca65084e6afddad130b3f2dc23147af29a4cc2656d16e929a418657c28eccd

  • SHA512

    6e0ddf6e459ad6b09e4b04bb46b6652af4c02660aec0d580884a3a94c4145295fb66786a802b15420b68666d1bc305b37419214be609de6079471f281eea811c

  • SSDEEP

    3072:EmeDmBqskJTT99Ci2I08tL5Mf9bniSvgOd:E8mT+e08tL8nXvgOd

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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfca65084e6afddad130b3f2dc23147af29a4cc2656d16e929a418657c28eccd.exe
    "C:\Users\Admin\AppData\Local\Temp\dfca65084e6afddad130b3f2dc23147af29a4cc2656d16e929a418657c28eccd.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:5040
    • 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:5064

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

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

    Filesize

    196KB

    MD5

    e4669fa29a5390df0704c8107fca71b4

    SHA1

    2696a62ba5821578c7672766e70bbace715f597d

    SHA256

    95c5f7c4b8f235e38d071d6139a18629af633441db0d9b323affc1292b92e165

    SHA512

    bcca7a81cad87c6ece5b2e9963603fb448b6242772685ebba4623a8ef9916975e41a7295de6eea22bb9ea5e66998259455d1bf4a9087116c5102dff3b76e32e9

  • memory/5064-132-0x0000000000000000-mapping.dmp