Analysis

  • max time kernel
    150s
  • 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
    01/12/2022, 18:08

General

  • Target

    bfd66b8c04842a8117a081ac7e9ac1cd83480996428e137534df86939e712e76.exe

  • Size

    40KB

  • MD5

    7bed7c82efafe6fbbe811b9cdb7ef374

  • SHA1

    253e75dd646496c947aea0270ab74110c5445419

  • SHA256

    bfd66b8c04842a8117a081ac7e9ac1cd83480996428e137534df86939e712e76

  • SHA512

    669c8c51c76907b2885ddcaa0d1bcb66c8aee493fec7217aa379f2f691b7a58bb745985f9b5debb87ccb15d8d4fd24b8490eebb9cf77f41fbbcaceb58145b1cd

  • SSDEEP

    768:SI8KnBLmtqeOQhbq+WVGvbsLHCAQpBryb0A4T+Ko+OA5FRe:2KnheOoa0fryAT

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bfd66b8c04842a8117a081ac7e9ac1cd83480996428e137534df86939e712e76.exe
    "C:\Users\Admin\AppData\Local\Temp\bfd66b8c04842a8117a081ac7e9ac1cd83480996428e137534df86939e712e76.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Users\Admin\AppData\Roaming\Trojan.exe
      "C:\Users\Admin\AppData\Roaming\Trojan.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:3644

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Trojan.exe

    Filesize

    40KB

    MD5

    7bed7c82efafe6fbbe811b9cdb7ef374

    SHA1

    253e75dd646496c947aea0270ab74110c5445419

    SHA256

    bfd66b8c04842a8117a081ac7e9ac1cd83480996428e137534df86939e712e76

    SHA512

    669c8c51c76907b2885ddcaa0d1bcb66c8aee493fec7217aa379f2f691b7a58bb745985f9b5debb87ccb15d8d4fd24b8490eebb9cf77f41fbbcaceb58145b1cd

  • C:\Users\Admin\AppData\Roaming\Trojan.exe

    Filesize

    40KB

    MD5

    7bed7c82efafe6fbbe811b9cdb7ef374

    SHA1

    253e75dd646496c947aea0270ab74110c5445419

    SHA256

    bfd66b8c04842a8117a081ac7e9ac1cd83480996428e137534df86939e712e76

    SHA512

    669c8c51c76907b2885ddcaa0d1bcb66c8aee493fec7217aa379f2f691b7a58bb745985f9b5debb87ccb15d8d4fd24b8490eebb9cf77f41fbbcaceb58145b1cd

  • memory/1200-132-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/1200-138-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/1232-136-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB

  • memory/1232-139-0x0000000075470000-0x0000000075A21000-memory.dmp

    Filesize

    5.7MB