Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-03-2024 19:47

General

  • Target

    dc7820da1bf79b648ecf96d7a758e5bd.exe

  • Size

    128KB

  • MD5

    dc7820da1bf79b648ecf96d7a758e5bd

  • SHA1

    8889862cbe66929aef1a2d3054f671878ed2d270

  • SHA256

    e57c27c3c6cce0aead612145e9e14ed436a7d12950d33a97770fd47e95acae73

  • SHA512

    fe284b918aab2b7b36470309a87ea59ecb002b0525a2bcc27f9777b982647539b578b12302c83590a926bd3ac12a4dfdd464f57ea956680b257e2a86b28d7133

  • SSDEEP

    3072:EmeDmBqskJdL80TNEzbee5UofW3YlDkrLP5:E86I0TNMbejZotYP5

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).

  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc7820da1bf79b648ecf96d7a758e5bd.exe
    "C:\Users\Admin\AppData\Local\Temp\dc7820da1bf79b648ecf96d7a758e5bd.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1384
    • 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:4564
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4476 --field-trial-handle=2272,i,1589057049575649654,2929151440327217574,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3584

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      208KB

      MD5

      a66cacb7947b94dff2acc14aab607266

      SHA1

      a7c627a114b44071831b3cfecb9d3328b7e6a51e

      SHA256

      567887e104611e6a3c9d593e5cfdf326e449462b31745999e27001d269a647e5

      SHA512

      1250a8eab2f382c8bafbca1cbe12590a7911cae89264457e721d7fcea97fa12641ff6ecb2ae336bcb0a99f457cb364e3cb1e54ed03dca0fc8ccb9d5b180aa8bb