General

  • Target

    bf214f02b37232d2ef41692ab37799897c076b6bf333970a9e79a2f326291588

  • Size

    1.8MB

  • Sample

    240701-p28dqasemf

  • MD5

    04a428c0416a58b182ed49f2d3af8313

  • SHA1

    a863d597d3b0d7b87c52c81dd0b5e57e2c562547

  • SHA256

    bf214f02b37232d2ef41692ab37799897c076b6bf333970a9e79a2f326291588

  • SHA512

    8ba8cf413ba7fb5f88779c4280346dfd142ebe97c878b27f445cff9fd112e9e853f1983802b861379c608de4d546cbb7d9bc8848d582be50bcb056695ab9e800

  • SSDEEP

    49152:j7/XrqHUn1ufmL8uLlChLK38fgLKx9JlZi5o1vTH3bW6FEEK:f/FuuL8uLlCQWxPlZi5o1fW6qE

Malware Config

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

C2

http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

default

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Targets

    • Target

      bf214f02b37232d2ef41692ab37799897c076b6bf333970a9e79a2f326291588

    • Size

      1.8MB

    • MD5

      04a428c0416a58b182ed49f2d3af8313

    • SHA1

      a863d597d3b0d7b87c52c81dd0b5e57e2c562547

    • SHA256

      bf214f02b37232d2ef41692ab37799897c076b6bf333970a9e79a2f326291588

    • SHA512

      8ba8cf413ba7fb5f88779c4280346dfd142ebe97c878b27f445cff9fd112e9e853f1983802b861379c608de4d546cbb7d9bc8848d582be50bcb056695ab9e800

    • SSDEEP

      49152:j7/XrqHUn1ufmL8uLlChLK38fgLKx9JlZi5o1vTH3bW6FEEK:f/FuuL8uLlCQWxPlZi5o1fW6qE

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Stealc

      Stealc is an infostealer written in C++.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • 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 NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

3
T1005

Tasks