General

  • Target

    3bd4b07526fe9acb5766a4cb72586ddb0d936ab3b9bdac0e4d259e610df42ad7

  • Size

    5.6MB

  • Sample

    250125-tnv9fssjdm

  • MD5

    6b0326092618a9d22a8266da42448465

  • SHA1

    b5dfdcf95f293f6e203dd7a4b22f46b1806c3456

  • SHA256

    3bd4b07526fe9acb5766a4cb72586ddb0d936ab3b9bdac0e4d259e610df42ad7

  • SHA512

    59b1c66b79c700e46912f586e2f239a5a130291b63864aa22decd34f9d5e2ec5c72ccee22b64653df6c27b0f87e38ccc07c93b4ce17b05911fdcbe02187c09a5

  • SSDEEP

    98304:BxuIJX4CqRz7gOSUOgJ2DyrescS44vAgb9ZF6vH9NPc3SKNYJlzB6DHdH/u1KCsl:B7zqRz7gMJAyCsJrx2/YYJ14hfudsl

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://185.215.113.16/defend/random.exe

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

brat

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

xworm

Version

5.0

C2

91.212.166.99:4404

Mutex

f35pmRFzPiiasEf1

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    dllhost.exe

aes.plain

Extracted

Family

lumma

C2

https://toppyneedus.biz/api

Targets

    • Target

      3bd4b07526fe9acb5766a4cb72586ddb0d936ab3b9bdac0e4d259e610df42ad7

    • Size

      5.6MB

    • MD5

      6b0326092618a9d22a8266da42448465

    • SHA1

      b5dfdcf95f293f6e203dd7a4b22f46b1806c3456

    • SHA256

      3bd4b07526fe9acb5766a4cb72586ddb0d936ab3b9bdac0e4d259e610df42ad7

    • SHA512

      59b1c66b79c700e46912f586e2f239a5a130291b63864aa22decd34f9d5e2ec5c72ccee22b64653df6c27b0f87e38ccc07c93b4ce17b05911fdcbe02187c09a5

    • SSDEEP

      98304:BxuIJX4CqRz7gOSUOgJ2DyrescS44vAgb9ZF6vH9NPc3SKNYJlzB6DHdH/u1KCsl:B7zqRz7gMJAyCsJrx2/YYJ14hfudsl

    • Amadey

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

    • Amadey family

    • Detect Xworm Payload

    • Detects Healer an antivirus disabler dropper

    • Healer

      Healer an antivirus disabler dropper.

    • Healer family

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • Modifies Windows Defender DisableAntiSpyware settings

    • Modifies Windows Defender Real-time Protection settings

    • Modifies Windows Defender TamperProtection settings

    • Modifies Windows Defender notification settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Stormkitty family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to execute payload.

    • 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

    • 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.

    • 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.

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks