Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2023, 12:39

General

  • Target

    6f2dbd4d6220fa771b07b926e7ca74ec.exe

  • Size

    512KB

  • MD5

    6f2dbd4d6220fa771b07b926e7ca74ec

  • SHA1

    662d1cc3eabb824ca1dd8fd017232d8c93e09d1f

  • SHA256

    221824109e9ff35ec49f1c8d46beda9af70ca3bb15a64848de6bc2e961f3fb4c

  • SHA512

    3ee553b779814557e187d896de7bd1158c2fd1c9f10ef0d1b7bfaf27642a016b3ae4d9fc607d6dd252ccdc7f15d27836bc2fdcd7563378c4c62c43a39a0728b3

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E41:0+h9OY70z+warul3E41

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • 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).

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 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\6f2dbd4d6220fa771b07b926e7ca74ec.exe
    "C:\Users\Admin\AppData\Local\Temp\6f2dbd4d6220fa771b07b926e7ca74ec.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:3888
    • C:\Users\Admin\AppData\Local\Temp\n1087\s1087.exe
      "C:\Users\Admin\AppData\Local\Temp\n1087\s1087.exe" 6b84ad9705a47a569568718cnUz8Xi4i4NfLLRU9kTidlqxv3IeIlA74AlaLeMNcLF8FVNL51gybesyCGhosmFpIheViDX8ok6t6HstlccZxyXBIiaDGZd3a53HnC7r36lyep2srOaVdzR9ejVUqcfyqTSxxw+jw+jdGX3AzaQa5tZE4 /v "C:\Users\Admin\AppData\Local\Temp\6f2dbd4d6220fa771b07b926e7ca74ec.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:4880

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n1087\s1087.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/4880-12-0x00007FFA4A8A0000-0x00007FFA4B241000-memory.dmp

          Filesize

          9.6MB

        • memory/4880-13-0x0000000001160000-0x0000000001170000-memory.dmp

          Filesize

          64KB

        • memory/4880-29-0x0000000001130000-0x0000000001142000-memory.dmp

          Filesize

          72KB

        • memory/4880-33-0x000000001CA90000-0x000000001CB2C000-memory.dmp

          Filesize

          624KB

        • memory/4880-32-0x000000001C520000-0x000000001C9EE000-memory.dmp

          Filesize

          4.8MB

        • memory/4880-34-0x000000001CC40000-0x000000001CCA2000-memory.dmp

          Filesize

          392KB

        • memory/4880-35-0x0000000001160000-0x0000000001170000-memory.dmp

          Filesize

          64KB

        • memory/4880-36-0x000000001BBF0000-0x000000001BBF8000-memory.dmp

          Filesize

          32KB

        • memory/4880-37-0x0000000001160000-0x0000000001170000-memory.dmp

          Filesize

          64KB

        • memory/4880-38-0x0000000001160000-0x0000000001170000-memory.dmp

          Filesize

          64KB

        • memory/4880-40-0x0000000001160000-0x0000000001170000-memory.dmp

          Filesize

          64KB

        • memory/4880-39-0x0000000001160000-0x0000000001170000-memory.dmp

          Filesize

          64KB

        • memory/4880-41-0x0000000020700000-0x0000000020C0E000-memory.dmp

          Filesize

          5.1MB

        • memory/4880-42-0x0000000020E50000-0x0000000020F8C000-memory.dmp

          Filesize

          1.2MB

        • memory/4880-44-0x00007FFA4A8A0000-0x00007FFA4B241000-memory.dmp

          Filesize

          9.6MB