General

  • Target

    file.exe

  • Size

    1.9MB

  • Sample

    241121-vn2a5sykbk

  • MD5

    3204e7adeb4d554e74b4aeb310cc5939

  • SHA1

    8a2a99bd088af5024c5b18f6cec3e7ec6cb460bc

  • SHA256

    5e25eba0727eb361d518125ef6bad9f834d4c7d91d35edb4b93ee0decaca6c12

  • SHA512

    699307161af2ce71c6ad91f7347383cd45872e0de2492db2586a09fe7d2bb5bbca7757b7f2b2c4b89a30a1023d1812b29e937d7ebb606b43b502047b030a8f43

  • SSDEEP

    49152:O4/csNlzfLamxFm9gl1WeIunPf03FJYev12xe:OCcS1R26Bt83PvUx

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

stealc

Botnet

mars

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      file.exe

    • Size

      1.9MB

    • MD5

      3204e7adeb4d554e74b4aeb310cc5939

    • SHA1

      8a2a99bd088af5024c5b18f6cec3e7ec6cb460bc

    • SHA256

      5e25eba0727eb361d518125ef6bad9f834d4c7d91d35edb4b93ee0decaca6c12

    • SHA512

      699307161af2ce71c6ad91f7347383cd45872e0de2492db2586a09fe7d2bb5bbca7757b7f2b2c4b89a30a1023d1812b29e937d7ebb606b43b502047b030a8f43

    • SSDEEP

      49152:O4/csNlzfLamxFm9gl1WeIunPf03FJYev12xe:OCcS1R26Bt83PvUx

    • 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

    • 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

    • 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