Analysis

  • max time kernel
    84s
  • max time network
    151s
  • 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, 23:09

General

  • Target

    9b5f0983624db89ad8016c678f2d38b5c7a79b9f05620aef905a779070c93d98.exe

  • Size

    512KB

  • MD5

    26b753757c36d310bf3d89952787ad3a

  • SHA1

    88ce79789cc0871b30fbb42830974025e9253b64

  • SHA256

    9b5f0983624db89ad8016c678f2d38b5c7a79b9f05620aef905a779070c93d98

  • SHA512

    0de2ba84a56aa7de71b306286b52296cca10bb5e7b9140be7c921cc1bd12d88ca196ecbbe3605f8728a5955a1b544825c758380886e2bd8923c42441747be2ba

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E45:0+h9OY70z+warul3E45

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\9b5f0983624db89ad8016c678f2d38b5c7a79b9f05620aef905a779070c93d98.exe
    "C:\Users\Admin\AppData\Local\Temp\9b5f0983624db89ad8016c678f2d38b5c7a79b9f05620aef905a779070c93d98.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:5084
    • C:\Users\Admin\AppData\Local\Temp\n892\s892.exe
      "C:\Users\Admin\AppData\Local\Temp\n892\s892.exe" 76bf326ab2156f9dc5618d41t++rN5C7RvyJNHSl2W2hPoOvPV2VCiltX9sA/5jwXPVGh3IQeFceE1xqKRHp1uSmjQQ4GWc0xB0SGTnmo4PXFq+wjngO7R01boSVbhC0cxp3M5wUGuhuvh0t/5nU1Nti95gw+ySu6d0NZIf0NfH2dk8Q /v "C:\Users\Admin\AppData\Local\Temp\9b5f0983624db89ad8016c678f2d38b5c7a79b9f05620aef905a779070c93d98.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:4692

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n892\s892.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n892\s892.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4692-135-0x00007FFC1BE60000-0x00007FFC1C896000-memory.dmp

    Filesize

    10.2MB

  • memory/4692-136-0x0000000000F3A000-0x0000000000F3F000-memory.dmp

    Filesize

    20KB

  • memory/4692-137-0x0000000000F3A000-0x0000000000F3F000-memory.dmp

    Filesize

    20KB