Analysis

  • max time kernel
    187s
  • max time network
    211s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2022, 03:49

General

  • Target

    d646e78e59618a1ba2a1571d30b1f70c9054bcf7b2674fc73059510f19ba8963.exe

  • Size

    125KB

  • MD5

    29d05f7252499d9ff3b27aca70c02977

  • SHA1

    2aaf647ce138bd24d3a7e287504d8c415c453c11

  • SHA256

    d646e78e59618a1ba2a1571d30b1f70c9054bcf7b2674fc73059510f19ba8963

  • SHA512

    a446f7ae2b01948303afb127d2a0398cfc04bbae6982c6cd91ba7d755a73da13a623dd4453bd865afc7a90e9190250a9d4dccac936ed352ab89e1d4348c1399c

  • SSDEEP

    3072:EmeDmBqskJOr+jY74jy6u4NCKctV4MJ6jvSgNVOZ:E8vl+yP4NRiV4MMvSgU

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 Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d646e78e59618a1ba2a1571d30b1f70c9054bcf7b2674fc73059510f19ba8963.exe
    "C:\Users\Admin\AppData\Local\Temp\d646e78e59618a1ba2a1571d30b1f70c9054bcf7b2674fc73059510f19ba8963.exe"
    1⤵
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:3300
    • 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:3112

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          200KB

          MD5

          35d22ce8a0c24e279698782463e77adc

          SHA1

          f3bde32b64dd10424ac7b287df3b2d15c9aa7211

          SHA256

          f8de3ba4c997f96d30d0de2bdd4d9feb226c8820495fc2b8540f99aca81e5736

          SHA512

          45eedaec79de5e12160a4f74a93dc573dcd27de4352de13e35bdd42f5d33d0ae151b19e08483f0900a1955e64cc2bdef42727b728de1e55116d81a8d945a00e9

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

          Filesize

          200KB

          MD5

          35d22ce8a0c24e279698782463e77adc

          SHA1

          f3bde32b64dd10424ac7b287df3b2d15c9aa7211

          SHA256

          f8de3ba4c997f96d30d0de2bdd4d9feb226c8820495fc2b8540f99aca81e5736

          SHA512

          45eedaec79de5e12160a4f74a93dc573dcd27de4352de13e35bdd42f5d33d0ae151b19e08483f0900a1955e64cc2bdef42727b728de1e55116d81a8d945a00e9