Analysis

  • max time kernel
    190s
  • max time network
    213s
  • 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

    34ed49d2d446fa64d0c197d5183a549f461316d6bfd47b98c80e005a20e26748.exe

  • Size

    512KB

  • MD5

    b9f3bb9b6c7437920872e898c7337c24

  • SHA1

    ef6235821756eb92c3a6c40f212d38e21c4326fc

  • SHA256

    34ed49d2d446fa64d0c197d5183a549f461316d6bfd47b98c80e005a20e26748

  • SHA512

    94360186b8aed59b1ae33a624266a454522b96d4481ceabd9691b568eb36610881ba443b189ccd0584554f8df30647e6b9b3761c3a854fa78b39d0a82f9e1992

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4i:0+h9OY70z+warul3E4i

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\34ed49d2d446fa64d0c197d5183a549f461316d6bfd47b98c80e005a20e26748.exe
    "C:\Users\Admin\AppData\Local\Temp\34ed49d2d446fa64d0c197d5183a549f461316d6bfd47b98c80e005a20e26748.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:1444
    • C:\Users\Admin\AppData\Local\Temp\n1662\s1662.exe
      "C:\Users\Admin\AppData\Local\Temp\n1662\s1662.exe" 08e76a11f0f4ef36f6df63fe1C2xZynNNpi4oa1ZDAkV11kYxokjg/pB2yswK2btpK0vLNy6XnIzFFkcV/2kaywBGGr+B+6LnC4Ogf1X3g/rXD4YGJXdgYCP7PqJDqRc6SbrxuK/q+oLRQQpDepVG+4vqq9uh4F7if240xxChBDvuPE= /v "C:\Users\Admin\AppData\Local\Temp\34ed49d2d446fa64d0c197d5183a549f461316d6bfd47b98c80e005a20e26748.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:4028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n1662\s1662.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n1662\s1662.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4028-135-0x00007FFB73300000-0x00007FFB73D36000-memory.dmp

    Filesize

    10.2MB

  • memory/4028-136-0x000000000158A000-0x000000000158F000-memory.dmp

    Filesize

    20KB

  • memory/4028-137-0x000000000158A000-0x000000000158F000-memory.dmp

    Filesize

    20KB