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Analysis

  • max time kernel
    118s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/12/2022, 13:59

General

  • Target

    a5a3be4bc54e36fe750efaefe82d6699b15f0aeb1e855123bed6408e9b7d935c.exe

  • Size

    11KB

  • MD5

    0143fe813af9f81f88ab434d5e740bc0

  • SHA1

    6b71221abca275f56870d84f8a5349c3c7adaf86

  • SHA256

    a5a3be4bc54e36fe750efaefe82d6699b15f0aeb1e855123bed6408e9b7d935c

  • SHA512

    e7e4111a6418fde1f095b5d53e9ad61637a1fe010d67773d1435a194c41cb2a1fb7ca5cc76dab84a35f129d5664f11c1f485780091c97934543fb0b328554ac3

  • SSDEEP

    192:vZH+V+cXezwuG2GdEXZKAOD10HTsL9CnfznLgMq24iGY:x+IcXeUuG2GdnAOmO92zUMqD8

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5a3be4bc54e36fe750efaefe82d6699b15f0aeb1e855123bed6408e9b7d935c.exe
    "C:\Users\Admin\AppData\Local\Temp\a5a3be4bc54e36fe750efaefe82d6699b15f0aeb1e855123bed6408e9b7d935c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Users\Admin\AppData\Roaming\exxplorer.exe
      "C:\Users\Admin\AppData\Roaming\exxplorer.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:4156

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\exxplorer.exe

    Filesize

    11KB

    MD5

    0143fe813af9f81f88ab434d5e740bc0

    SHA1

    6b71221abca275f56870d84f8a5349c3c7adaf86

    SHA256

    a5a3be4bc54e36fe750efaefe82d6699b15f0aeb1e855123bed6408e9b7d935c

    SHA512

    e7e4111a6418fde1f095b5d53e9ad61637a1fe010d67773d1435a194c41cb2a1fb7ca5cc76dab84a35f129d5664f11c1f485780091c97934543fb0b328554ac3

  • C:\Users\Admin\AppData\Roaming\exxplorer.exe

    Filesize

    11KB

    MD5

    0143fe813af9f81f88ab434d5e740bc0

    SHA1

    6b71221abca275f56870d84f8a5349c3c7adaf86

    SHA256

    a5a3be4bc54e36fe750efaefe82d6699b15f0aeb1e855123bed6408e9b7d935c

    SHA512

    e7e4111a6418fde1f095b5d53e9ad61637a1fe010d67773d1435a194c41cb2a1fb7ca5cc76dab84a35f129d5664f11c1f485780091c97934543fb0b328554ac3