General

  • Target

    16e79b3ea5478b6dc1e6664b912ce29abcf1a40860137cfcd08f2c2c6886e82e

  • Size

    1.1MB

  • Sample

    240801-btlm4atgrk

  • MD5

    cb416a2e11972ed50ca0ee2c0e1704e2

  • SHA1

    063a0bec8e730d9a32efd623583d6c2eb54884f6

  • SHA256

    16e79b3ea5478b6dc1e6664b912ce29abcf1a40860137cfcd08f2c2c6886e82e

  • SHA512

    3daf59e82e5b721903b07bf09c5166a770ca87cde4aeac563e7e26e4484bee5e3658118e4e32ff1ed265fa5dd035f01c489cf7f9ac19133a06c385aa2f553e07

  • SSDEEP

    24576:NMTLzQw+jrYRmM5Yi3PCFjj625+fG58FP5l/hDa2Gz67r0:NMnzAjrYquIjj0fG6FPD/hDt74

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7390139954:AAFw-89dzufZnN9iQ-qMJ7xuGsXRrzvXAEI/

Extracted

Family

redline

Botnet

Newlogs

C2

204.14.75.2:16383

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7390139954:AAFw-89dzufZnN9iQ-qMJ7xuGsXRrzvXAEI/sendDocumen

Targets

    • Target

      Design Specification.exe

    • Size

      1.2MB

    • MD5

      9c00a98791d68b0c6a6de0b54c5fb2a4

    • SHA1

      1323ac73e31ca0ab98bf5282be089920544031a1

    • SHA256

      273cbe3cdaa8a8ee98cd7516b3f8511f66d191ee52c1998c43a1d772b002c52e

    • SHA512

      d598b7bba1cc0eb562d382d9d43e127d68ec10d7ae048c432e8d765a9e4d2a991da0b0699184cb57f9fc0ec651a3bf99b01dd2a78aae8a28b10d20bf3061c1b2

    • SSDEEP

      24576:GyzHgPQArY3MY5jdCtv3GhERG7Qnr7lth7sMukjdC6:GyzfArY3MY1d+OhERGsnrJth7fHdv

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • RedLine

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

    • RedLine payload

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks