Analysis

  • max time kernel
    145s
  • max time network
    150s
  • 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

    20af65a18d3c62b0b715f9e0f4c4589e02297dd780b37f7fde921ea568c5087c.exe

  • Size

    124KB

  • MD5

    744f70d07097a1e8f534ac8b63652afc

  • SHA1

    92ad67b19deace6b7a86a96ca0cac9682ec5f523

  • SHA256

    20af65a18d3c62b0b715f9e0f4c4589e02297dd780b37f7fde921ea568c5087c

  • SHA512

    9eaf81ff270475f257ca25fde168b46d26788a4e2fd08f30b1a029c3bd418d710c6739794b7e3c3130bef6e226c4a4b69722f54fc6e42876b4f2021a256b92fa

  • SSDEEP

    3072:EmeDmBqskJnXK91wlVVNY39eby+FUl+u4j3epva:E88K8ldY39eDG+u4j3epva

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\20af65a18d3c62b0b715f9e0f4c4589e02297dd780b37f7fde921ea568c5087c.exe
    "C:\Users\Admin\AppData\Local\Temp\20af65a18d3c62b0b715f9e0f4c4589e02297dd780b37f7fde921ea568c5087c.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2672
    • 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:4768

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

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/4768-132-0x0000000000000000-mapping.dmp