Analysis

  • max time kernel
    419s
  • max time network
    421s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2024 15:28

General

  • Target

    d8fd9ad2f30cade8bf0c36f5a3acc64ccc95f625b9f3e2c0654046a531b4e83b.exe

  • Size

    608KB

  • MD5

    3593209c748bd92c690629708266e9d6

  • SHA1

    f714bb1041beacfaad20ee8fe16b53ab5aa19388

  • SHA256

    d8fd9ad2f30cade8bf0c36f5a3acc64ccc95f625b9f3e2c0654046a531b4e83b

  • SHA512

    ab90fe1fc5035d29377e2e6fb3fcc7ec17f72f2289548da38727e445abcdba6df2f3760a7508e8915b471d90592b999c5bd422fc3dbb8b7844c4fee93aaf47eb

  • SSDEEP

    12288:JGCvd4YfdiwaYepoOlD9neGGwkUHAHHHg263GgpU9UpUQ:WhpoOFpeGGwkUHAHHHg263GgpU9Up5

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-701583114-2636601053-947405450-1000\NZALA-MANUAL.txt

Family

gandcrab

Ransom Note
---= GANDCRAB V5.2 =--- ***********************UNDER NO CIRCUMSTANCES DO NOT DELETE THIS FILE, UNTIL ALL YOUR DATA IS RECOVERED*********************** *****FAILING TO DO SO, WILL RESULT IN YOUR SYSTEM CORRUPTION, IF THERE ARE DECRYPTION ERRORS***** Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .NZALA The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. The server with your key is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- | 0. Download Tor browser - https://www.torproject.org/ | 1. Install Tor browser | 2. Open Tor Browser | 3. Open link in TOR browser: http://gandcrabmfe6mnef.onion/e0af1f99a2a74613 | 4. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. ATTENTION! IN ORDER TO PREVENT DATA DAMAGE: * DO NOT MODIFY ENCRYPTED FILES * DO NOT CHANGE DATA BELOW ---BEGIN GANDCRAB KEY--- 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 ---END GANDCRAB KEY--- ---BEGIN PC DATA--- 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 ---END PC DATA---
URLs

http://gandcrabmfe6mnef.onion/e0af1f99a2a74613

Signatures

  • Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

  • Renames multiple (344) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 36 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d8fd9ad2f30cade8bf0c36f5a3acc64ccc95f625b9f3e2c0654046a531b4e83b.exe
    "C:\Users\Admin\AppData\Local\Temp\d8fd9ad2f30cade8bf0c36f5a3acc64ccc95f625b9f3e2c0654046a531b4e83b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:32
    • C:\Users\Admin\AppData\Local\Temp\d8fd9ad2f30cade8bf0c36f5a3acc64ccc95f625b9f3e2c0654046a531b4e83b.exe
      "C:\Users\Admin\AppData\Local\Temp\d8fd9ad2f30cade8bf0c36f5a3acc64ccc95f625b9f3e2c0654046a531b4e83b.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Enumerates connected drives
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:680
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c vssadmin delete shadows /all /quiet
        3⤵
          PID:3188

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • F:\$RECYCLE.BIN\S-1-5-21-701583114-2636601053-947405450-1000\NZALA-MANUAL.txt

      Filesize

      8KB

      MD5

      5f1283d2d6cbe053b217b90db2efb70b

      SHA1

      377a6fb1107fd10eead4838aff86366930dba567

      SHA256

      6192431c642f0f5de992978c98cecb6fad8476124f9f8bc107aa2de043142143

      SHA512

      84696d80b0bb6cc688a46f8efcbda808516eb4be42b822d8480d30dbea5fab4f5cb4f9151ca990e46719a95e23959dc618efc2609c644fb30a3caa116b48569d

    • memory/32-9-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-18-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-8-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-19-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-7-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-17-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-16-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-15-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-14-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-13-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-12-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-6-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-10-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-0-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-20-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-21-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-11-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-5-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-4-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-3-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-2-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-1-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-23-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/32-22-0x00000000026D0000-0x00000000026D1000-memory.dmp

      Filesize

      4KB

    • memory/680-25-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/680-26-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/680-24-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/680-904-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/680-907-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB