Analysis

  • max time kernel
    152s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2022, 06:55

General

  • Target

    d8d24948689140568a5504e4d5c009fec75f89e5eb5102396ab2827ce25c76de.exe

  • Size

    512KB

  • MD5

    4310c623df50e881ec06361333190291

  • SHA1

    e9455636e00c20af2a6bc4283945d35932c59f03

  • SHA256

    d8d24948689140568a5504e4d5c009fec75f89e5eb5102396ab2827ce25c76de

  • SHA512

    465eed09c3f2e63823c7b64e0946a2aff530ab7b84d1d4a0374171209fd9a6d1d0e69b1e6bcab9cacc9cffbac7e8f23ca29a0e4263162dd7bd9b2ad0187739c1

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4v:0+h9OY70z+warul3E4v

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\d8d24948689140568a5504e4d5c009fec75f89e5eb5102396ab2827ce25c76de.exe
    "C:\Users\Admin\AppData\Local\Temp\d8d24948689140568a5504e4d5c009fec75f89e5eb5102396ab2827ce25c76de.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:3084
    • C:\Users\Admin\AppData\Local\Temp\n3983\s3983.exe
      "C:\Users\Admin\AppData\Local\Temp\n3983\s3983.exe" 90b5cf600849c63fdfec4f6b0zC2e7M+dVfqqj2McQmnqVePDBcI/h/9Qge7bVDQZ4Xy1nG2gVY42iUgfwiR0f0hq6WjtO7XQErYMLHPCIGdDp3frODWIktEUhv8lfUJ2VL3N5e3u4xRQc8Z2WlCvcIs+p4aUXkFrnyWyQZF5T+FFz2G /v "C:\Users\Admin\AppData\Local\Temp\d8d24948689140568a5504e4d5c009fec75f89e5eb5102396ab2827ce25c76de.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:4172

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n3983\s3983.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n3983\s3983.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/4172-135-0x00007FFC9DF70000-0x00007FFC9E9A6000-memory.dmp

          Filesize

          10.2MB

        • memory/4172-136-0x00000000013FA000-0x00000000013FF000-memory.dmp

          Filesize

          20KB

        • memory/4172-137-0x00000000013FA000-0x00000000013FF000-memory.dmp

          Filesize

          20KB