Analysis

  • max time kernel
    172s
  • max time network
    183s
  • 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, 22:57

General

  • Target

    25b2575d0c5df7d114ebfb32b8eb91dacbd1ff34ba7c112a7146b3f8a0a9e7b2.exe

  • Size

    512KB

  • MD5

    23ec8d8e6647ed187dbd221253e8afd0

  • SHA1

    4b978da50d37db7f6d35e5db89ec23958618ce20

  • SHA256

    25b2575d0c5df7d114ebfb32b8eb91dacbd1ff34ba7c112a7146b3f8a0a9e7b2

  • SHA512

    0edc65ebb3d67c19443437de5c423d3c602816deb1ee0082497c1fed450dc1b99521a0cf64c79984de47b3931c2d2bd95d582936163dd87b2aadfa13dabb50f4

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4r:0+h9OY70z+warul3E4r

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\25b2575d0c5df7d114ebfb32b8eb91dacbd1ff34ba7c112a7146b3f8a0a9e7b2.exe
    "C:\Users\Admin\AppData\Local\Temp\25b2575d0c5df7d114ebfb32b8eb91dacbd1ff34ba7c112a7146b3f8a0a9e7b2.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:3468
    • C:\Users\Admin\AppData\Local\Temp\n8498\s8498.exe
      "C:\Users\Admin\AppData\Local\Temp\n8498\s8498.exe" 5c75db7121d86972cecefa65heeze6LP37xsTtrCRg8/0yWlFVpruDY0UFsjbdLrrXnT4zNhdx+Yx0uNKhFNmMDVpa0m9N8zAtNP7Pt56YK2XgtOu83SISOhPPfWooUqJZ5cwXsM0zUIKdv3ifynXukKPUosiddTQG57wLKcR2oW01IP /v "C:\Users\Admin\AppData\Local\Temp\25b2575d0c5df7d114ebfb32b8eb91dacbd1ff34ba7c112a7146b3f8a0a9e7b2.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:4768

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n8498\s8498.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n8498\s8498.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4768-135-0x00007FFA00E70000-0x00007FFA018A6000-memory.dmp

    Filesize

    10.2MB

  • memory/4768-136-0x00000000012DA000-0x00000000012DF000-memory.dmp

    Filesize

    20KB

  • memory/4768-137-0x00000000012DA000-0x00000000012DF000-memory.dmp

    Filesize

    20KB