Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 00:20

General

  • Target

    786cfbd6f6f51dfeebfa22b1abd498c3a2531582165758545705792b261f972e.exe

  • Size

    160KB

  • MD5

    18b3e06af16fcf0aabcb5fc0d5656d60

  • SHA1

    70ea23d3dc0e4724f620b6f1a6a2cfcaed1c4dbc

  • SHA256

    786cfbd6f6f51dfeebfa22b1abd498c3a2531582165758545705792b261f972e

  • SHA512

    55a9a7ade34ea499b1a52497bc4ddd7cd0d8c6fcb88330df87cb7ff77ac3543c37b32f96de04a493ec70fa3723477c25f5a5cce42de7867c944045ef4fd6dad9

  • SSDEEP

    3072:/a5Xf+Dxk95Fbr2IsJ03CwLYwR49hPLd3BzK02Swq4lV94oQZiEhE7:C5v+DgbrTw03rLlR4PLnh7w1rvWk

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
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\786cfbd6f6f51dfeebfa22b1abd498c3a2531582165758545705792b261f972e.exe
    "C:\Users\Admin\AppData\Local\Temp\786cfbd6f6f51dfeebfa22b1abd498c3a2531582165758545705792b261f972e.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:2228
    • C:\Users\Admin\fiilee.exe
      "C:\Users\Admin\fiilee.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:2408
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:1316

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\fiilee.exe

    Filesize

    160KB

    MD5

    d5b3d97c054b2c500dd54265ec6a0d9e

    SHA1

    cf77e36231dfb490680a2c0dd9d3523bc3c10b65

    SHA256

    5b0ad267fc0324b58261b404b6d1a3f22c0cfb0a6bfdf24f330689f71f3a57fe

    SHA512

    70076e5b5eb7feb4c08b31f0fef3a11678d6c07b9e1e631d3cf1d15dca47add078e1904c1a6e828037f030881426b3c0611310fe8fd4acf35c642f32eaf0a036

  • C:\Users\Admin\fiilee.exe

    Filesize

    160KB

    MD5

    d5b3d97c054b2c500dd54265ec6a0d9e

    SHA1

    cf77e36231dfb490680a2c0dd9d3523bc3c10b65

    SHA256

    5b0ad267fc0324b58261b404b6d1a3f22c0cfb0a6bfdf24f330689f71f3a57fe

    SHA512

    70076e5b5eb7feb4c08b31f0fef3a11678d6c07b9e1e631d3cf1d15dca47add078e1904c1a6e828037f030881426b3c0611310fe8fd4acf35c642f32eaf0a036

  • memory/2408-134-0x0000000000000000-mapping.dmp