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Analysis

  • max time kernel
    351s
  • max time network
    320s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2022, 07:41

General

  • Target

    792ee1beb8687a1d28faffa2abe59c8168428d59b693795d9bc01db020a4c36c.exe

  • Size

    512KB

  • MD5

    b8cbc24eb41614406f5dcb7d510997f2

  • SHA1

    a1482eac0dac34ff969e7d05a22a6140bf36ea89

  • SHA256

    792ee1beb8687a1d28faffa2abe59c8168428d59b693795d9bc01db020a4c36c

  • SHA512

    b0e8c8ddc5b88e84d982ce27e4ced7571e8153c7cba43b378ea90c6d6a856be2eaba6e93ed728f0acf54549a3cf8000e03f08650a9a82c7643c908e512b8c902

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E47:0+h9OY70z+warul3E47

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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\792ee1beb8687a1d28faffa2abe59c8168428d59b693795d9bc01db020a4c36c.exe
    "C:\Users\Admin\AppData\Local\Temp\792ee1beb8687a1d28faffa2abe59c8168428d59b693795d9bc01db020a4c36c.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:3216
    • C:\Users\Admin\AppData\Local\Temp\n3987\s3987.exe
      "C:\Users\Admin\AppData\Local\Temp\n3987\s3987.exe" 52e3beaf8286a1bf0efa35e08An50/1DukdzAladnwH4zesLxXWHVWCcwwwzXvwIF6HZJPp9JVd3ba9QFOQzwjkzb/PN2bubqX1nYkU+mlrB7wVU+LY73YE5h2wOlI363oerRkyRfuuwLKGKn3N+qze+YUrWNF1aG7JBIRUdQHTZscCL /v "C:\Users\Admin\AppData\Local\Temp\792ee1beb8687a1d28faffa2abe59c8168428d59b693795d9bc01db020a4c36c.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
      PID:1748

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3987\s3987.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3987\s3987.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1748-135-0x000000001BE40000-0x000000001C876000-memory.dmp

    Filesize

    10.2MB