Analysis

  • max time kernel
    150s
  • 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
    27-11-2022 23:53

General

  • Target

    2a7b7c115c8ff8dcbaa03b5888e8519e42912998e52d462c05d163900e4ca26a.exe

  • Size

    512KB

  • MD5

    f2be96747298c3b0a96091b479cd3cc4

  • SHA1

    ff39255ef713038acd41c1a2932179b662432cb5

  • SHA256

    2a7b7c115c8ff8dcbaa03b5888e8519e42912998e52d462c05d163900e4ca26a

  • SHA512

    e3706847958e6cfcc1808a4fb33006cb5e01ce1a248675dba3451fdc9ad8cb2848001f310f230f86eee51e2b077b352bc31ab47ad6370ffc6c31e37387c4e982

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4k:0+h9OY70z+warul3E4k

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 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.

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a7b7c115c8ff8dcbaa03b5888e8519e42912998e52d462c05d163900e4ca26a.exe
    "C:\Users\Admin\AppData\Local\Temp\2a7b7c115c8ff8dcbaa03b5888e8519e42912998e52d462c05d163900e4ca26a.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\n513\s513.exe
      "C:\Users\Admin\AppData\Local\Temp\n513\s513.exe" b9e5c72df57025390e0e33b0bJNLYk4hjcVj368Qi877C5Z445GSNKacSWZNdb2NMM9BqYUa18w9j8DRqGqSsCa7mzv5JwhdwKXXozme5oY0bRfa5JYTwpG/5L1bXFfu+mk+mLQJf98di2fd58T0jaOWublxdDV17yWg0amUvUWJAGNw /v "C:\Users\Admin\AppData\Local\Temp\2a7b7c115c8ff8dcbaa03b5888e8519e42912998e52d462c05d163900e4ca26a.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2008

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n513\s513.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n513\s513.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/2008-132-0x0000000000000000-mapping.dmp

  • memory/2008-135-0x00007FFD4F950000-0x00007FFD50386000-memory.dmp

    Filesize

    10.2MB

  • memory/2008-136-0x00000000010AA000-0x00000000010AF000-memory.dmp

    Filesize

    20KB

  • memory/2008-137-0x00000000010AA000-0x00000000010AF000-memory.dmp

    Filesize

    20KB