General

  • Target

    SecuriteInfo.com.Trojan.Siggen29.13373.31943.4048.exe

  • Size

    322KB

  • Sample

    240810-vzvbzazbmn

  • MD5

    328b3cd833cb83faee5922244a1e7db6

  • SHA1

    d7ab82401a0a02563d80ca2a417043c2917095d5

  • SHA256

    30423fad469c19c4fa41f1028dcb5f393931125f000e50e20cbaa8301fa3e973

  • SHA512

    8e90f4473e54134b459341b177a2c0116424de816f2791899f2d7e7c03fb4db9c761040c0442dab00e4cd20e02c613172c6de8610a1e718fdab69181bfbd2382

  • SSDEEP

    6144:hXUqQ1N8txf0tk5kKLJ4y8TpXr3NgrRoezt1aOIkHgo2TWo:qqQ1N8tMYXV6XiFoeBHgo2a

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

176.111.174.140:6606

176.111.174.140:7707

176.111.174.140:8808

Mutex

QaF6X2cpj8fc

Attributes
  • delay

    3

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

redline

Botnet

diamotrix

C2

176.111.174.140:1912

Extracted

Path

C:\HdbtqCuyh.README.txt

Ransom Note
[Your Files Have Been Encrypted] Hello, Your files have been encrypted with strong encryption algorithms. To regain access to your data, you need to follow the instructions below: Do Not Attempt to Recover Your Files: Any attempt to recover your files using third-party tools will result in permanent data loss. Pay the Ransom: You must pay a ransom of 1 Bitcoin to receive the decryption key. Payment must be made within 72 hours to avoid data loss. Contact Us on Telegram: To get the payment details and further instructions, contact us via Telegram at @BIBIL_0DAY. Decryption Key: After payment is confirmed, we will send you the decryption key and instructions on how to unlock your files. Warning: If you do not contact us or pay within the given timeframe, your data will be permanently lost. Do not attempt to contact us via any other means. We will not respond. Your encrypted files are your responsibility. Telegram Username: @BIBIL_0DAY

Targets

    • Target

      SecuriteInfo.com.Trojan.Siggen29.13373.31943.4048.exe

    • Size

      322KB

    • MD5

      328b3cd833cb83faee5922244a1e7db6

    • SHA1

      d7ab82401a0a02563d80ca2a417043c2917095d5

    • SHA256

      30423fad469c19c4fa41f1028dcb5f393931125f000e50e20cbaa8301fa3e973

    • SHA512

      8e90f4473e54134b459341b177a2c0116424de816f2791899f2d7e7c03fb4db9c761040c0442dab00e4cd20e02c613172c6de8610a1e718fdab69181bfbd2382

    • SSDEEP

      6144:hXUqQ1N8txf0tk5kKLJ4y8TpXr3NgrRoezt1aOIkHgo2TWo:qqQ1N8tMYXV6XiFoeBHgo2a

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Async RAT payload

    • Renames multiple (678) files with added filename extension

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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks