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Analysis

  • max time kernel
    182s
  • max time network
    198s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/11/2022, 16:42

General

  • Target

    faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe

  • Size

    316KB

  • MD5

    9a972e2e36e8471c6fac36dc330af1d5

  • SHA1

    2d65c53bdc141e9e4c2af5dc613dedb35115b49f

  • SHA256

    faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37

  • SHA512

    6afa9efbc7b4107fe5857b54ea928df6a5553af2962daa20349f9c64843bce8b3a5d87e9519c5d5fa66820672779ae605ac620b40657ffdb2aa4d09b77b82f77

  • SSDEEP

    3072:vmVs9yxYkQqHd0/sQPO1ouVNDr//GeTb3O/ea6LOsDxeB:3yxYkt90/sQe///3Oj6LOsG

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • 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 29 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe
    "C:\Users\Admin\AppData\Local\Temp\faef5ab85d3d3bf1279b48b4b0df4e9c739566d4886a4483a39737230cc4eb37.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3576
    • C:\Users\Admin\srwec.exe
      "C:\Users\Admin\srwec.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3448

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\srwec.exe

    Filesize

    316KB

    MD5

    bb8bb851668b70de5b176263124da3d9

    SHA1

    2f934cd358a52c3b056ac2dafd61051e46e02325

    SHA256

    3052da43baa8b7cc861eb267b09f49e869eb9f1818a583e93fad15048fa88042

    SHA512

    56b45667dbcee946e7a488e42cbc07142d909ce52bf70d17b586dfbe7240b888bf4d03e18c9b75c878fc14e064b1be2f2c3f9f07aff54405d41a0bd95eb21d4e

  • C:\Users\Admin\srwec.exe

    Filesize

    316KB

    MD5

    bb8bb851668b70de5b176263124da3d9

    SHA1

    2f934cd358a52c3b056ac2dafd61051e46e02325

    SHA256

    3052da43baa8b7cc861eb267b09f49e869eb9f1818a583e93fad15048fa88042

    SHA512

    56b45667dbcee946e7a488e42cbc07142d909ce52bf70d17b586dfbe7240b888bf4d03e18c9b75c878fc14e064b1be2f2c3f9f07aff54405d41a0bd95eb21d4e