Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-12-2022 23:45

General

  • Target

    81a116e0142d7640750ad8dc5142a72855e5f488b62c872b0de41528b867a297.exe

  • Size

    56KB

  • MD5

    a54884e11d942683eb5bc4df7c13aef7

  • SHA1

    8ba5f506dcdeef904c73e89df7d08c4f29ef0821

  • SHA256

    81a116e0142d7640750ad8dc5142a72855e5f488b62c872b0de41528b867a297

  • SHA512

    04a8bc44617a3d648df11628ff5843f2eff99bf7c436bea11087d0e82ee831e159eeb1ca9b92e3f1ef683e4af3f7b507eb305a3d3800e8f238ada561111af6aa

  • SSDEEP

    768:c+HBPe1HHR4lCko8jf0mq/6/Q/9NF0+LEc8af3ts0E91:cl1HHRIocq2oS+Ljb3ts0E91

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 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 2 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 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81a116e0142d7640750ad8dc5142a72855e5f488b62c872b0de41528b867a297.exe
    "C:\Users\Admin\AppData\Local\Temp\81a116e0142d7640750ad8dc5142a72855e5f488b62c872b0de41528b867a297.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2284
    • C:\Users\Admin\sauozaw.exe
      "C:\Users\Admin\sauozaw.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
      • Suspicious use of WriteProcessMemory
      PID:5040

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\sauozaw.exe

    Filesize

    56KB

    MD5

    190bf013ca569c4d78fffb61a4879532

    SHA1

    4dc8bc1b00ff7239bb08f0dd00dfda8d5ab34c6e

    SHA256

    7c0adc22565ca9f5a0cd13c3d147fb0b22262f1d5d476464d8e2b65478a3ffbd

    SHA512

    6f32c040cd254784e277de409458fbea958db32431bea858e77e504e1e6db1a7660774c65b29b2971ab3c0fe84a41fe158d9944c631d2580b7ed7f3577593d13

  • C:\Users\Admin\sauozaw.exe

    Filesize

    56KB

    MD5

    190bf013ca569c4d78fffb61a4879532

    SHA1

    4dc8bc1b00ff7239bb08f0dd00dfda8d5ab34c6e

    SHA256

    7c0adc22565ca9f5a0cd13c3d147fb0b22262f1d5d476464d8e2b65478a3ffbd

    SHA512

    6f32c040cd254784e277de409458fbea958db32431bea858e77e504e1e6db1a7660774c65b29b2971ab3c0fe84a41fe158d9944c631d2580b7ed7f3577593d13

  • memory/5040-134-0x0000000000000000-mapping.dmp