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Overview

overview

10

Static

static

3

2025-01-19...ia.exe

windows7-x64

10

2025-01-19...ia.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/01/2025, 03:06

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General

  • Target

    2025-01-19_f9b9fca8d0582074c127358a01079b93_mafia.exe

  • Size

    225KB

  • MD5

    f9b9fca8d0582074c127358a01079b93

  • SHA1

    b8e4f0e7b4389ab5aff7f89444f915c6b59f65fd

  • SHA256

    650d7baf827dcb92f8209d003892b068f1cbf615e5149b9c27da88166b6f44e3

  • SHA512

    bab1f20ef5199986966d0d55e5c91a213c595a060f8b0b7ae359163b3a72253da7cd434efd91300353e38b40a72ff6e6c4638c7d4a0e1ad66d4b8e449d05e520

  • SSDEEP

    3072:9kR7Gqi0YCmfua54i3Yk44qpW6FNplXFbP6BBNzN9nGb08z8E2oySq3SpZ5+JC+:9kl0Ga5uk41pW6Nl1Gn5ngV2fS+Sp2B

Score
10/10
gandcrabbackdoorcredential_accessdefense_evasiondiscoveryexecutionimpactransomwarespywarestealer

Malware Config

Extracted

Path

C:\$Recycle.Bin\KRAB-DECRYPT.txt

Ransom Note
---= GANDCRAB V4 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .KRAB 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/e7c86b44e4337006 | 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/e7c86b44e4337006

Signatures

  • Gandcrab

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

    ransomwarebackdoorgandcrab
  • Gandcrab family
    gandcrab
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (277) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Program Files directory 40 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-19_f9b9fca8d0582074c127358a01079b93_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-19_f9b9fca8d0582074c127358a01079b93_mafia.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1688
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3088

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\KRAB-DECRYPT.txt
    Filesize

    8KB

    MD5

    c6122bb85ef61ccdee5c895982acd5fd

    SHA1

    52f314a0ea2dbd0ec9d4d7b323756522275edaca

    SHA256

    9709d4827028c9bfb14872c3414f8ff2b5503fbc7c9ad40692e64c24f0cde1c1

    SHA512

    d361462de5bf870ac1f33004ea157e83fe4d64336401ace3b6ebf4f9e1f8fc72b3548a90ab5aadcbfb5df6b10b654142f2122bb3a2a88815c30e38b4b3190784

    Download Submit

  • memory/1820-2-0x0000000000720000-0x0000000000820000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/1820-3-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

    Download

  • memory/1820-734-0x0000000000720000-0x0000000000820000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/1820-735-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

    Download

  • memory/1820-736-0x0000000000400000-0x0000000000423000-memory.dmp

    Filesize

    140KB

    Download

  • memory/1820-737-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

    Download