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Analysis

  • max time kernel
    151s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2022, 04:03

General

  • Target

    3f7ca312e6beefe46091bc979100fa1d6caac04d9a791b96e8f9aa78e6b29a6d.exe

  • Size

    100KB

  • MD5

    bf092864b8fa2e77b0778ebe72106a3f

  • SHA1

    abc854fc6e40bd947bb97245660dd40e8266bd04

  • SHA256

    3f7ca312e6beefe46091bc979100fa1d6caac04d9a791b96e8f9aa78e6b29a6d

  • SHA512

    dacfcc852cfdb653a99ffb739b87ec55a95556954b9d89d7f26f6a07b0e142a25df15d6c44320622b27683784b810def000ce307fefe510e19fbaa3c0db24825

  • SSDEEP

    1536:DWtGF82NTzwYMGAc4ohrPXo+73Rez8b0SyuNIjnZq:3wHurPX7CuCnY

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\3f7ca312e6beefe46091bc979100fa1d6caac04d9a791b96e8f9aa78e6b29a6d.exe
    "C:\Users\Admin\AppData\Local\Temp\3f7ca312e6beefe46091bc979100fa1d6caac04d9a791b96e8f9aa78e6b29a6d.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:4792
    • C:\Users\Admin\fuoqium.exe
      "C:\Users\Admin\fuoqium.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:2372

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\fuoqium.exe

    Filesize

    100KB

    MD5

    454695063009ee763dbd31b6d2b31b0e

    SHA1

    805c4bbfa15b38d6e1543404036984f09d6a0ff3

    SHA256

    c84b1f7e3f339a1175eef6f846aeea246b209b89a096a1112e1701bb2a63e39d

    SHA512

    436163231db5cac8915caf01490567d7217c7fb37b82b598fc3518cd6172719d99d70b15b02f2d1d5f51d9803dea4a58280daa80f2a638c4b5ba1e6045d0ec69

  • C:\Users\Admin\fuoqium.exe

    Filesize

    100KB

    MD5

    454695063009ee763dbd31b6d2b31b0e

    SHA1

    805c4bbfa15b38d6e1543404036984f09d6a0ff3

    SHA256

    c84b1f7e3f339a1175eef6f846aeea246b209b89a096a1112e1701bb2a63e39d

    SHA512

    436163231db5cac8915caf01490567d7217c7fb37b82b598fc3518cd6172719d99d70b15b02f2d1d5f51d9803dea4a58280daa80f2a638c4b5ba1e6045d0ec69