Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2022, 06:46

General

  • Target

    3748fc2f8eb74dc57fc1d624aa48b85a5eaa0ed8ec5270cc9d258111dce493e1.exe

  • Size

    248KB

  • MD5

    5938095ceab954f517cfca9c63dfaae0

  • SHA1

    04d08ed15a9be96129bd869059639c63b7bf64ff

  • SHA256

    3748fc2f8eb74dc57fc1d624aa48b85a5eaa0ed8ec5270cc9d258111dce493e1

  • SHA512

    fa168948bc8ed38af6667d17440fd858a1249261f6c7aab23fa370077bacb10b53a2784e6585f3e753232ac86763148c63e5c3f6627aefab46f93e6866b9ae1a

  • SSDEEP

    3072:+R4xqdJvR8MFD1yPBYEmaHtGG2gqZ+/9A+JRjKY5Md41gfy27:PxMh1yPptGG2gqZ+FfKqDsX

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 54 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\3748fc2f8eb74dc57fc1d624aa48b85a5eaa0ed8ec5270cc9d258111dce493e1.exe
    "C:\Users\Admin\AppData\Local\Temp\3748fc2f8eb74dc57fc1d624aa48b85a5eaa0ed8ec5270cc9d258111dce493e1.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:5068
    • C:\Users\Admin\kouig.exe
      "C:\Users\Admin\kouig.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:3608

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\kouig.exe

          Filesize

          248KB

          MD5

          8b5e144f7eb3e47ce0da427422cede63

          SHA1

          489980095d77bd26c2715e41eb0bed48387162be

          SHA256

          1bfc236404817b62973774351a8982fbc2f07dc9322fdd1d4dae71d90ae0cf29

          SHA512

          66b34ba3b0b4ebc95d571567b84f9afd52a6bab962a0e4ca6b6dd380d0c6a23f021ff4185b2c360bd0f5898bd042faf96dd29bdc14c302458be529af1cd289da

        • C:\Users\Admin\kouig.exe

          Filesize

          248KB

          MD5

          8b5e144f7eb3e47ce0da427422cede63

          SHA1

          489980095d77bd26c2715e41eb0bed48387162be

          SHA256

          1bfc236404817b62973774351a8982fbc2f07dc9322fdd1d4dae71d90ae0cf29

          SHA512

          66b34ba3b0b4ebc95d571567b84f9afd52a6bab962a0e4ca6b6dd380d0c6a23f021ff4185b2c360bd0f5898bd042faf96dd29bdc14c302458be529af1cd289da