General

  • Target

    amadka.exe

  • Size

    1.8MB

  • Sample

    240720-zflb6swgph

  • MD5

    a167734f75b512f5fd225cfba47b3511

  • SHA1

    aa5b54ac5a624e4c15fb848e519efa4fbd9d4e32

  • SHA256

    53083ace2013ee5e0ccfbdc41557a35ba6446d8c999fa5376b16f63197c1bad4

  • SHA512

    47b126308f83f371417965887fbf653f9501d7fd637a0eec380c6250e14947774e899ff77650763bf7cd10aa97837b5779ea4ccd6633dbad0cdff0adbec85a90

  • SSDEEP

    49152:dryQBe+WLSfY0Zg+V1Lxkj54Sx73b0tT9Y:QQ4RSfYqV1LxkFNeF2

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://85.28.47.31

Attributes
  • url_path

    /5499d72b3a3e55be.php

Targets

    • Target

      amadka.exe

    • Size

      1.8MB

    • MD5

      a167734f75b512f5fd225cfba47b3511

    • SHA1

      aa5b54ac5a624e4c15fb848e519efa4fbd9d4e32

    • SHA256

      53083ace2013ee5e0ccfbdc41557a35ba6446d8c999fa5376b16f63197c1bad4

    • SHA512

      47b126308f83f371417965887fbf653f9501d7fd637a0eec380c6250e14947774e899ff77650763bf7cd10aa97837b5779ea4ccd6633dbad0cdff0adbec85a90

    • SSDEEP

      49152:dryQBe+WLSfY0Zg+V1Lxkj54Sx73b0tT9Y:QQ4RSfYqV1LxkFNeF2

    • 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

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks