Analysis

  • max time kernel
    82s
  • max time network
    151s
  • 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, 22:43

General

  • Target

    ba6a39fcafcc58ce551361271f2fd7ff63554593ad32b2785a25db7c501518ba.exe

  • Size

    512KB

  • MD5

    d6cefd8ed5de860b76208debed42c90d

  • SHA1

    db277827636b9f48b2f0389819388f6a48a47889

  • SHA256

    ba6a39fcafcc58ce551361271f2fd7ff63554593ad32b2785a25db7c501518ba

  • SHA512

    2d9a24233b567db8541d0c27cb3fe6891142133176f0b3d85a85f498dafb9b9c145ddf06f1acbc501097b413681491c4c5ff1f40435bd3cafa7a1ebdce0199a0

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E47i:0+h9OY70z+warul3E47i

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\ba6a39fcafcc58ce551361271f2fd7ff63554593ad32b2785a25db7c501518ba.exe
    "C:\Users\Admin\AppData\Local\Temp\ba6a39fcafcc58ce551361271f2fd7ff63554593ad32b2785a25db7c501518ba.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:1616
    • C:\Users\Admin\AppData\Local\Temp\n1109\s1109.exe
      "C:\Users\Admin\AppData\Local\Temp\n1109\s1109.exe" 9a39ef08f70a876415916199mB06ozMk748vW6+ZfjDTHqS8eQT6fZpTl8qQsVXvuX/9jb/kpWUntMLm/W+3sxzMv+EsUECoZCoSW6zGy8whQXO6TyM7Izql3lONzJh3KvkOUsLe51HtbfjUL5hlcpj/99F9HtDZ91D9X7JKrREn7H4K /v "C:\Users\Admin\AppData\Local\Temp\ba6a39fcafcc58ce551361271f2fd7ff63554593ad32b2785a25db7c501518ba.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:4836

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n1109\s1109.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n1109\s1109.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/4836-135-0x00007FFDB3CE0000-0x00007FFDB4716000-memory.dmp

          Filesize

          10.2MB

        • memory/4836-136-0x0000000000DAA000-0x0000000000DAF000-memory.dmp

          Filesize

          20KB

        • memory/4836-137-0x0000000000DAA000-0x0000000000DAF000-memory.dmp

          Filesize

          20KB