General

  • Target

    Application65bbc577b4bf7.rar

  • Size

    7.9MB

  • Sample

    240201-tyzpmabhaq

  • MD5

    425043b149d5141589975e92a3c3475e

  • SHA1

    308a07b116b2f46e424919d797c555bb4c066194

  • SHA256

    d69be3adda5c9e44da6b9c7e3906100eb9d801e26d4436f55d38d6a1c02cad79

  • SHA512

    1b069341765407d052c82c958c517b22721189e6dcb92c2625b4fa22c209bfae305783dcd3e5da9b85379d3cf1cebd7f8fb15015c28799a46b99ca27874c7523

  • SSDEEP

    196608:22orhpx9tjnBg/FxkjvgR6esYAh7xhTuLtHmcB7a9T:ZoHxjjBQx4otsYKD80cFap

Malware Config

Extracted

Family

stealc

C2

http://109.107.182.60

Attributes
  • url_path

    /118645f3b3a0b2f5.php

rc4.plain

Targets

    • Target

      Application65bbc577b4bf7.rar

    • Size

      7.9MB

    • MD5

      425043b149d5141589975e92a3c3475e

    • SHA1

      308a07b116b2f46e424919d797c555bb4c066194

    • SHA256

      d69be3adda5c9e44da6b9c7e3906100eb9d801e26d4436f55d38d6a1c02cad79

    • SHA512

      1b069341765407d052c82c958c517b22721189e6dcb92c2625b4fa22c209bfae305783dcd3e5da9b85379d3cf1cebd7f8fb15015c28799a46b99ca27874c7523

    • SSDEEP

      196608:22orhpx9tjnBg/FxkjvgR6esYAh7xhTuLtHmcB7a9T:ZoHxjjBQx4otsYKD80cFap

    • Locky

      Ransomware strain released in 2016, with advanced features like anti-analysis.

    • Stealc

      Stealc is an infostealer written in C++.

    • Downloads MZ/PE file

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Collection

Data from Local System

3
T1005

Tasks