General

  • Target

    file.exe

  • Size

    1.8MB

  • Sample

    241121-xvszfszjek

  • MD5

    873f4ff6922f79aca237323377183153

  • SHA1

    c0e782ab9058afb71626fae94fdd996cbeda934a

  • SHA256

    bafd70cdb59a7b667840982897d95dcbb9fcf86bde1267aacc5f7b8dcdba0271

  • SHA512

    7fa1c35440711d5f2ac374678ba37b485e73e9e592ea1592268db5420b35c374595b79050ced86cbed22ffe9bfb94a5799527a0e375db37f2a186c911f1c10e8

  • SSDEEP

    49152:Kpe2Nf+D/CmuxmmCTHmn0sPx6rvwEyw1lkpR4Yk4Pbdt50O:R21ya98mYUPoroVslWuLebdb

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/2.png

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/3.png

Extracted

Language
hta
Source
URLs
hta.dropper

http://176.113.115.178/Windows-Update

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/1.png

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

mars

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      file.exe

    • Size

      1.8MB

    • MD5

      873f4ff6922f79aca237323377183153

    • SHA1

      c0e782ab9058afb71626fae94fdd996cbeda934a

    • SHA256

      bafd70cdb59a7b667840982897d95dcbb9fcf86bde1267aacc5f7b8dcdba0271

    • SHA512

      7fa1c35440711d5f2ac374678ba37b485e73e9e592ea1592268db5420b35c374595b79050ced86cbed22ffe9bfb94a5799527a0e375db37f2a186c911f1c10e8

    • SSDEEP

      49152:Kpe2Nf+D/CmuxmmCTHmn0sPx6rvwEyw1lkpR4Yk4Pbdt50O:R21ya98mYUPoroVslWuLebdb

    • Amadey

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

    • Amadey family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detects CryptBot payload

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • UAC bypass

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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 user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Windows security modification

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to execute payload.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks