Analysis

  • max time kernel
    169s
  • max time network
    185s
  • 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, 00:07

General

  • Target

    2c997bc2e18c9a9159086c3382859a45cee313027ff4089ef1133d86d1f6dc85.exe

  • Size

    512KB

  • MD5

    c8b8b6830ef570763984f38e5e5d41f6

  • SHA1

    fe0c4846ff7fe00e6edd0196b51692cd1015e260

  • SHA256

    2c997bc2e18c9a9159086c3382859a45cee313027ff4089ef1133d86d1f6dc85

  • SHA512

    c97c9086cde9492fe647c3e3e7d8a7b3ff0433fddd1d5ca474cfa7c53aa7fc081f9cc3bf77a2caa2f10ddda9f4a232851262cd6cff41dce7987c3a69d68afebb

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E48:0+h9OY70z+warul3E48

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 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c997bc2e18c9a9159086c3382859a45cee313027ff4089ef1133d86d1f6dc85.exe
    "C:\Users\Admin\AppData\Local\Temp\2c997bc2e18c9a9159086c3382859a45cee313027ff4089ef1133d86d1f6dc85.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:4836
    • C:\Users\Admin\AppData\Local\Temp\n3244\s3244.exe
      "C:\Users\Admin\AppData\Local\Temp\n3244\s3244.exe" cd20f2b2a8c7aba149bb103ep39WaGAsj+EUx0EY6k/T20QLdG2uzMBN/Z3eYIfcCeAIQxwqUPbwbTxHKODlN6ckXREv4Eqx32lkCi5flo1HGUfQN9OdjLXDXUunHNF5dDIb0GpQFt3ypg96hh9jV+D+25bf3LEZig09HQMp4WP/ADDm /v "C:\Users\Admin\AppData\Local\Temp\2c997bc2e18c9a9159086c3382859a45cee313027ff4089ef1133d86d1f6dc85.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      PID:4152

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3244\s3244.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3244\s3244.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4152-135-0x000000001BF70000-0x000000001C9A6000-memory.dmp

    Filesize

    10.2MB