Analysis

  • max time kernel
    96s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 01:39

General

  • Target

    d4e3b7d5372d7f1c31ab4202cc29b401a0723898434e67287748c05a0aaf6b4b.exe

  • Size

    512KB

  • MD5

    638d9a368bd584aaeb0586c7277db9c5

  • SHA1

    9ef38cb1c0fcbfb5eda8cafad33552244389032a

  • SHA256

    d4e3b7d5372d7f1c31ab4202cc29b401a0723898434e67287748c05a0aaf6b4b

  • SHA512

    d3edcdc7f73e8300ef564c2666d9bdca3e29e3d21a13ab61ce2103e4628f0dceda8a884d949374a28e510e6327ac5e370ffa9d790452cf301c2121965828a1c9

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4m:0+h9OY70z+warul3E4m

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4e3b7d5372d7f1c31ab4202cc29b401a0723898434e67287748c05a0aaf6b4b.exe
    "C:\Users\Admin\AppData\Local\Temp\d4e3b7d5372d7f1c31ab4202cc29b401a0723898434e67287748c05a0aaf6b4b.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Loads dropped DLL
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:892
    • C:\Users\Admin\AppData\Local\Temp\n3373\s3373.exe
      "C:\Users\Admin\AppData\Local\Temp\n3373\s3373.exe" b431cb28b6c46547854167c17xbxwMELJAHrb6pqiZ0sRvbLlLDhbTakecekCyYEVIylBauSFGcGG3oocfUS5FKrry8Hy921pzfwKTZXvqNiAT1l5lgGsbJD7j5N0v9MG+4M7bNZsMysrC1/pSWrT4JuYttYF3mNzA/OQZDv8t9yIvYz /v "C:\Users\Admin\AppData\Local\Temp\d4e3b7d5372d7f1c31ab4202cc29b401a0723898434e67287748c05a0aaf6b4b.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1436

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3373\s3373.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3373\s3373.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3373\s3373.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3373\s3373.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3373\s3373.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • \Users\Admin\AppData\Local\Temp\n3373\s3373.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/892-54-0x0000000075141000-0x0000000075143000-memory.dmp

    Filesize

    8KB

  • memory/1436-62-0x000007FEF3410000-0x000007FEF3E33000-memory.dmp

    Filesize

    10.1MB

  • memory/1436-63-0x000007FEF2370000-0x000007FEF3406000-memory.dmp

    Filesize

    16.6MB

  • memory/1436-64-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

    Filesize

    8KB

  • memory/1436-65-0x0000000000BA6000-0x0000000000BC5000-memory.dmp

    Filesize

    124KB

  • memory/1436-66-0x000007FEED940000-0x000007FEEE7CF000-memory.dmp

    Filesize

    14.6MB

  • memory/1436-67-0x0000000000BA6000-0x0000000000BC5000-memory.dmp

    Filesize

    124KB

  • memory/1436-68-0x000007FEF19D0000-0x000007FEF1CBA000-memory.dmp

    Filesize

    2.9MB

  • memory/1436-69-0x0000000000BA6000-0x0000000000BC5000-memory.dmp

    Filesize

    124KB