General

  • Target

    631461baff2c972a573b06942ac6587b3b0e47d8692cb7b5847fec32b35c4e91.exe

  • Size

    1.8MB

  • Sample

    241125-mcyf4s1rbw

  • MD5

    6c647887fa50b1e2b11f313871f854f9

  • SHA1

    d267af26188dc62cbe2759f851c9abff765e130d

  • SHA256

    631461baff2c972a573b06942ac6587b3b0e47d8692cb7b5847fec32b35c4e91

  • SHA512

    78e82405f4249c39b8051faefe58eb77142a70815e1ece8b7a7a76f44362408aa3aa4fdc7b48dac47e50aca1909ab9ff345234460f1bf534706d505496dd2254

  • SSDEEP

    24576:XFWKcW3OuZZL3c7j2u5nWvgAB9zmAk+2+Y8PMLq/5vzsSH0F1nq00wrRz9eLtUko:E7WVZZLs7j2hvgWt1JHPsc0L86EU3P

Malware Config

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

vidar

Version

11.8

Botnet

fc02efe1cfb2a62f36f33fff0274fb41

C2

https://t.me/fu4chmo

https://steamcommunity.com/profiles/76561199802540894

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Extracted

Family

stealc

Botnet

mars

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      631461baff2c972a573b06942ac6587b3b0e47d8692cb7b5847fec32b35c4e91.exe

    • Size

      1.8MB

    • MD5

      6c647887fa50b1e2b11f313871f854f9

    • SHA1

      d267af26188dc62cbe2759f851c9abff765e130d

    • SHA256

      631461baff2c972a573b06942ac6587b3b0e47d8692cb7b5847fec32b35c4e91

    • SHA512

      78e82405f4249c39b8051faefe58eb77142a70815e1ece8b7a7a76f44362408aa3aa4fdc7b48dac47e50aca1909ab9ff345234460f1bf534706d505496dd2254

    • SSDEEP

      24576:XFWKcW3OuZZL3c7j2u5nWvgAB9zmAk+2+Y8PMLq/5vzsSH0F1nq00wrRz9eLtUko:E7WVZZLs7j2hvgWt1JHPsc0L86EU3P

    • 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

    • Detect Vidar Stealer

    • 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

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

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

    • 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 cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks