Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 00:44

General

  • Target

    838e13025c700837668dbda2dee01cdee2f6e8c269d9aaab70891fb51548354c.exe

  • Size

    88KB

  • MD5

    591b338f34ccef00f55bb774dc344b0c

  • SHA1

    f9d4cb1cde8c111270ed4f302a20ac3014174dce

  • SHA256

    838e13025c700837668dbda2dee01cdee2f6e8c269d9aaab70891fb51548354c

  • SHA512

    784f5b6c9250106253d543e748a23d05aa4d6f06e5dd4f729b3b4f969c7ea073af06736d948dfb0b7153eaff5bbb684d898f3d268dd87ac9a24a03cc091bcc7b

  • SSDEEP

    1536:6Yd4NJxM4uGR88FXaIj3mmpQxAwHz1qQU37bmxzzYj8pizy4LTV6vDmNmo1GP:ySJ8FXacWmpQxAwHz1qQGfmxzzYj8pi+

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\838e13025c700837668dbda2dee01cdee2f6e8c269d9aaab70891fb51548354c.exe
    "C:\Users\Admin\AppData\Local\Temp\838e13025c700837668dbda2dee01cdee2f6e8c269d9aaab70891fb51548354c.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:448
    • C:\Users\Admin\biaeda.exe
      "C:\Users\Admin\biaeda.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:5060

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\biaeda.exe

          Filesize

          88KB

          MD5

          99ef1ee50d017126c62c5c859023fb7f

          SHA1

          dfcbc4409890d1ce2ab42c54fab3560000089686

          SHA256

          0d24040492e0f052cc128b181713ff38666811c2161134a8179f90c79ddd0cd1

          SHA512

          15153182d35ea8ea7acc2875b4a6e7a503feacc0d78a93c447254620d61e6518bc2915f03241847b9d94d2187681b8f0c28036334e9b8cf9980244887403293e

        • C:\Users\Admin\biaeda.exe

          Filesize

          88KB

          MD5

          99ef1ee50d017126c62c5c859023fb7f

          SHA1

          dfcbc4409890d1ce2ab42c54fab3560000089686

          SHA256

          0d24040492e0f052cc128b181713ff38666811c2161134a8179f90c79ddd0cd1

          SHA512

          15153182d35ea8ea7acc2875b4a6e7a503feacc0d78a93c447254620d61e6518bc2915f03241847b9d94d2187681b8f0c28036334e9b8cf9980244887403293e