General

  • Target

    a2875c6be2294af9b58ad26740ced38be55aaefb5386111f0b83e652c03c6af2

  • Size

    1.8MB

  • Sample

    240601-3x1pzabd6z

  • MD5

    89b5ee93372e0ce3108c7b790a5981fb

  • SHA1

    eae23ff4e513d40071352116f78de0d254d6d6a5

  • SHA256

    a2875c6be2294af9b58ad26740ced38be55aaefb5386111f0b83e652c03c6af2

  • SHA512

    061b0aaed234da3fbb6fa589785bd63d771064b2201fa4495cd0054c3383a430cfc42e9dce04826f95bb44b4ba6349438c069f88ad9ba6fc99b3cb97da85f84a

  • SSDEEP

    49152:vdmKC/iRWh68tTzKEjvXeMfoGwCXSIkYUT0:vdmKIZTzKEbVp9Jk

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://94.103.188.126/jerry/putty.zip

Extracted

Family

amadey

Version

4.21

Botnet

49e482

C2

http://147.45.47.70

Attributes
  • install_dir

    1b29d73536

  • install_file

    axplont.exe

  • strings_key

    4d31dd1a190d9879c21fac6d87dc0043

  • url_paths

    /tr8nomy/index.php

rc4.plain

Extracted

Family

asyncrat

Version

AsyncRAT

Botnet

Fresh

C2

pepecasas123.net:4608

Mutex

AsyncMutex_5952

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

smokeloader

Version

2022

C2

http://dbfhns.in/tmp/index.php

http://guteyr.cc/tmp/index.php

http://greendag.ru/tmp/index.php

http://lobulraualov.in.net/tmp/index.php

rc4.i32
rc4.i32

Targets

    • Target

      a2875c6be2294af9b58ad26740ced38be55aaefb5386111f0b83e652c03c6af2

    • Size

      1.8MB

    • MD5

      89b5ee93372e0ce3108c7b790a5981fb

    • SHA1

      eae23ff4e513d40071352116f78de0d254d6d6a5

    • SHA256

      a2875c6be2294af9b58ad26740ced38be55aaefb5386111f0b83e652c03c6af2

    • SHA512

      061b0aaed234da3fbb6fa589785bd63d771064b2201fa4495cd0054c3383a430cfc42e9dce04826f95bb44b4ba6349438c069f88ad9ba6fc99b3cb97da85f84a

    • SSDEEP

      49152:vdmKC/iRWh68tTzKEjvXeMfoGwCXSIkYUT0:vdmKIZTzKEbVp9Jk

    • Amadey

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

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Modifies firewall policy service

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

    • Windows security bypass

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

    • 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

    • 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.

    • Drops startup file

    • 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.

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks