Analysis

  • max time kernel
    138s
  • max time network
    161s
  • 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, 01:22

General

  • Target

    4d7552a52dc28d1f8d6d7b75378ff698615ec3de8008c3a2d93ebdbe90c6da4d.exe

  • Size

    512KB

  • MD5

    bb4b186c651e75f1a2325fa24b2958aa

  • SHA1

    2a55bd5058b697d40417a4be617d67f03b1152d9

  • SHA256

    4d7552a52dc28d1f8d6d7b75378ff698615ec3de8008c3a2d93ebdbe90c6da4d

  • SHA512

    0f10ed5a73a87a53c7689e52abab288b487f4304a80c8647693bf302653fd1678b80f882a6c57dd05cebd2ad7813d1c40d0584b644b814a4c8764f6f29a84407

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E46:0+h9OY70z+warul3E46

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 3 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\4d7552a52dc28d1f8d6d7b75378ff698615ec3de8008c3a2d93ebdbe90c6da4d.exe
    "C:\Users\Admin\AppData\Local\Temp\4d7552a52dc28d1f8d6d7b75378ff698615ec3de8008c3a2d93ebdbe90c6da4d.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:1548
    • C:\Users\Admin\AppData\Local\Temp\n2144\s2144.exe
      "C:\Users\Admin\AppData\Local\Temp\n2144\s2144.exe" 00e2e57f796ba38839e169aag53tA6hcNDroYiRK7aiIvNGx8c5Zqp9qaouqNjHewBlgJaHd/yhseiNwdCuk9kp+MWESJSLgk25lAQP+HRjhhr9+ZW/D7zHmvABxRae11Ztpoiq5oyKcO8RjTbA9luwYlm2iaonbs0rcakM0Cw4a/6yn /v "C:\Users\Admin\AppData\Local\Temp\4d7552a52dc28d1f8d6d7b75378ff698615ec3de8008c3a2d93ebdbe90c6da4d.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:2244

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n2144\s2144.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n2144\s2144.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/2244-138-0x00007FFB3BBF0000-0x00007FFB3C626000-memory.dmp

          Filesize

          10.2MB

        • memory/2244-139-0x0000000000B5A000-0x0000000000B5F000-memory.dmp

          Filesize

          20KB

        • memory/2244-140-0x0000000000B5A000-0x0000000000B5F000-memory.dmp

          Filesize

          20KB

        • memory/2244-141-0x0000000000B5A000-0x0000000000B5F000-memory.dmp

          Filesize

          20KB