Analysis

  • max time kernel
    135s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 03:31

General

  • Target

    ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe

  • Size

    135KB

  • MD5

    0afa036c60c0bcde9153256020209e4d

  • SHA1

    0ccaa8cc2a4f12122ae77a41e428266dc2b22910

  • SHA256

    ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf

  • SHA512

    48c0f19a07de6f21b8572160a91a567936f994cb6b699c4555c3e730448587d8f6cd39cf9edc2ceed25304e5d763d30c1710941900a076facbfd7878ae44f261

  • SSDEEP

    1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOb:YfU/WF6QMauSuiWNi9eNOl0007NZIOb

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe
    "C:\Users\Admin\AppData\Local\Temp\ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4464
    • C:\ProgramData\Update\wuauclt.exe
      "C:\ProgramData\Update\wuauclt.exe" /run
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1008
    • C:\windows\SysWOW64\cmd.exe
      "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\ac450bd1a101625b820e73a90f7f2e96c7688020620167fa4ac390934f4c4abf.exe" >> NUL
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3276

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\Update\wuauclt.exe

          Filesize

          135KB

          MD5

          3a20c49ed4fc181b3e92dbedd6fccf8e

          SHA1

          c0b688ea9d1fede184acaf7260fdc89f193fe04d

          SHA256

          dab9dbcaf59774af9f1e073eb10b44a9a6ddd0c4afcdab6cb8987a097bddc42e

          SHA512

          044d3b73023248a90f8dd82eabd6259ab4f0ed6376e98dc0906b92e4c40284a0f6eec06c5e1239aad418251738caab7995f341235f5d57b5637381bfbd27017a

        • memory/1008-5-0x0000000000420000-0x0000000000448000-memory.dmp

          Filesize

          160KB

        • memory/1008-7-0x0000000000420000-0x0000000000448000-memory.dmp

          Filesize

          160KB

        • memory/4464-0-0x0000000000A30000-0x0000000000A58000-memory.dmp

          Filesize

          160KB

        • memory/4464-6-0x0000000000A30000-0x0000000000A58000-memory.dmp

          Filesize

          160KB

        • memory/4464-8-0x0000000000A30000-0x0000000000A58000-memory.dmp

          Filesize

          160KB