Analysis

  • max time kernel
    179s
  • max time network
    185s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 01:23

General

  • Target

    de998b8f6e8ca8c4536c82b87568fa97aa71788e69899a8f80259e76b3483643.exe

  • Size

    512KB

  • MD5

    422d6e66b6871217b37a40bffe13cbbc

  • SHA1

    e1405798bcedfd55e80a4e5c4447c9386e6d4d61

  • SHA256

    de998b8f6e8ca8c4536c82b87568fa97aa71788e69899a8f80259e76b3483643

  • SHA512

    141d881529298802f977ef174ab2b2d6e2a8cea4ab8065ef0ae1756d24dd3b0c53703fe9fed5337ca2945754ae15f1b427079deb51622a5b683d89271d646c45

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4WR:0+h9OY70z+warul3E4WR

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\de998b8f6e8ca8c4536c82b87568fa97aa71788e69899a8f80259e76b3483643.exe
    "C:\Users\Admin\AppData\Local\Temp\de998b8f6e8ca8c4536c82b87568fa97aa71788e69899a8f80259e76b3483643.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:5052
    • C:\Users\Admin\AppData\Local\Temp\n3108\s3108.exe
      "C:\Users\Admin\AppData\Local\Temp\n3108\s3108.exe" 7a602da133b21c5fbf8049321ylQ6s4YX1cm8h/0FTwLMLdwvR2ZcyxtQIrou6cVPvPkpYfmmj5Ou6eoUH+nKC9SuHuiQ4qg1QXiWtdRtOP8Hf1tggVZCp7HxtX4Kny9Tixf5mj6loD0buT//EGgJAWxmHGPJSs4CuKEMalBqSd4KWzR /v "C:\Users\Admin\AppData\Local\Temp\de998b8f6e8ca8c4536c82b87568fa97aa71788e69899a8f80259e76b3483643.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:4964

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3108\s3108.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3108\s3108.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4964-132-0x0000000000000000-mapping.dmp

  • memory/4964-135-0x00007FFDF3070000-0x00007FFDF3AA6000-memory.dmp

    Filesize

    10.2MB

  • memory/4964-136-0x0000000000A8A000-0x0000000000A8F000-memory.dmp

    Filesize

    20KB

  • memory/4964-137-0x0000000000A8A000-0x0000000000A8F000-memory.dmp

    Filesize

    20KB