General

  • Target

    73b18034b92e7b3dd1ec7694c1aa14acf221c8b4e82ae2ffa8e748d74d3fe6b3

  • Size

    1.8MB

  • Sample

    240724-g4ycjasckl

  • MD5

    b2c7ce6fe0d3fb9cd8b518258c085bde

  • SHA1

    b8144cc4f366319c62dde4a6abb1eeaec368a41f

  • SHA256

    73b18034b92e7b3dd1ec7694c1aa14acf221c8b4e82ae2ffa8e748d74d3fe6b3

  • SHA512

    c15793c6c22c3996b015dee8f9d640b698f3d302225dae3312a1b0e7784bdcddbf1f88a0e5f437365d8a4f2e84262020b2ccccbdb9dc6599a8bd79537d2d7aee

  • SSDEEP

    49152:+mMayu1j6bP+c9Uw5obU2lZTfQBkDaaDEeAfB4XxiI:3MDT+aUw2XykDareAfer

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

sila

C2

http://85.28.47.31

Attributes
  • url_path

    /5499d72b3a3e55be.php

Targets

    • Target

      73b18034b92e7b3dd1ec7694c1aa14acf221c8b4e82ae2ffa8e748d74d3fe6b3

    • Size

      1.8MB

    • MD5

      b2c7ce6fe0d3fb9cd8b518258c085bde

    • SHA1

      b8144cc4f366319c62dde4a6abb1eeaec368a41f

    • SHA256

      73b18034b92e7b3dd1ec7694c1aa14acf221c8b4e82ae2ffa8e748d74d3fe6b3

    • SHA512

      c15793c6c22c3996b015dee8f9d640b698f3d302225dae3312a1b0e7784bdcddbf1f88a0e5f437365d8a4f2e84262020b2ccccbdb9dc6599a8bd79537d2d7aee

    • SSDEEP

      49152:+mMayu1j6bP+c9Uw5obU2lZTfQBkDaaDEeAfB4XxiI:3MDT+aUw2XykDareAfer

    • 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.

    • Adds Run key to start application

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks