Analysis

  • max time kernel
    164s
  • max time network
    183s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 22:03

General

  • Target

    f1dbe5c88250decd53b74b906bd48556020f188c325755a32eca775f6122b72a.exe

  • Size

    512KB

  • MD5

    c4503206a397ccbdc818d5225e6d66f2

  • SHA1

    36d6428ca792f954842edbc88f4057916d1ce199

  • SHA256

    f1dbe5c88250decd53b74b906bd48556020f188c325755a32eca775f6122b72a

  • SHA512

    7f32b1373b298edd56584eca607e62e404331e6d2091b7d61a307885607b0b689a0e25eb5bb6aeac664303b04cf892aad4c9635375928947532ae5c9897df343

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4s:0+h9OY70z+warul3E4s

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\f1dbe5c88250decd53b74b906bd48556020f188c325755a32eca775f6122b72a.exe
    "C:\Users\Admin\AppData\Local\Temp\f1dbe5c88250decd53b74b906bd48556020f188c325755a32eca775f6122b72a.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:3416
    • C:\Users\Admin\AppData\Local\Temp\n8130\s8130.exe
      "C:\Users\Admin\AppData\Local\Temp\n8130\s8130.exe" 3a99bd1548799d88103df84b+TyXedhURN+VehDdQjo4J92mwQHxxFKktHxb/92+l7XogH3TvcPf6YQqA6E5u7eMV/73UGPyCIfEqqgGo2OJFY358sEk5Sw1P7ALk+2kwMHDZ2tqBSTPmooSfs+jCex2/z265g3ZEtEFr59N1qU6czoE /v "C:\Users\Admin\AppData\Local\Temp\f1dbe5c88250decd53b74b906bd48556020f188c325755a32eca775f6122b72a.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:4800

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n8130\s8130.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n8130\s8130.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/4800-135-0x00007FFE96F70000-0x00007FFE979A6000-memory.dmp

          Filesize

          10.2MB

        • memory/4800-136-0x000000000148A000-0x000000000148F000-memory.dmp

          Filesize

          20KB

        • memory/4800-137-0x000000000148A000-0x000000000148F000-memory.dmp

          Filesize

          20KB