Analysis

  • max time kernel
    151s
  • max time network
    171s
  • 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, 22:14

General

  • Target

    ceef350be97723344a1e8a6ab8bd838896126c581aaf41c351014c43553affe1.exe

  • Size

    512KB

  • MD5

    51e0c0a3feb4fc441cc4b3b8385889f8

  • SHA1

    fa3ddb0d8357afd0c8e5fed026500a924a71b480

  • SHA256

    ceef350be97723344a1e8a6ab8bd838896126c581aaf41c351014c43553affe1

  • SHA512

    4dc15e633fdbd2edd285d8aa7cee960184255955cee48a332d50c85a2ff44b6bd49ce3012b447e11bfbd05f32c8a25ec226145d238309312d98e44053c1f72c7

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4U:0+h9OY70z+warul3E4U

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\ceef350be97723344a1e8a6ab8bd838896126c581aaf41c351014c43553affe1.exe
    "C:\Users\Admin\AppData\Local\Temp\ceef350be97723344a1e8a6ab8bd838896126c581aaf41c351014c43553affe1.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:4844
    • C:\Users\Admin\AppData\Local\Temp\n1095\s1095.exe
      "C:\Users\Admin\AppData\Local\Temp\n1095\s1095.exe" fa42c1de2861dd299df39fe7A24Pp721KQNIDMK2rTFOtszuyOyDxqn5HBg1oeoCUwXd4mVcTXfZX/Pj35OmB3hzcDOwCX9QTdIZQHLA8j7NMrQbxOow0BWy2sbRplwDRVxlMooAE3/tOsZxAMqfllNZJEsnEuJVT8qE/Z/vvTHcdiEQ /v "C:\Users\Admin\AppData\Local\Temp\ceef350be97723344a1e8a6ab8bd838896126c581aaf41c351014c43553affe1.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:2268

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n1095\s1095.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n1095\s1095.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/2268-135-0x00007FFE97F50000-0x00007FFE98986000-memory.dmp

          Filesize

          10.2MB

        • memory/2268-136-0x0000000000D9A000-0x0000000000D9F000-memory.dmp

          Filesize

          20KB

        • memory/2268-137-0x0000000000D9A000-0x0000000000D9F000-memory.dmp

          Filesize

          20KB

        • memory/2268-138-0x0000000000D9A000-0x0000000000D9F000-memory.dmp

          Filesize

          20KB