Resubmissions

06/04/2026, 08:10

260406-j2pnqagy3t10

29/03/2026, 10:47

260329-mvqh8adv3t10

28/03/2026, 19:34

260328-yacmeag16x10

28/03/2026, 13:09

260328-qd4laset3q10

28/03/2026, 04:17

260328-ewrhxaaw2y10

27/03/2026, 11:57

260327-n4tsnsbv7w10

03/03/2026, 12:58

260303-p7phssaz3m10

General

  • Target
    77fb832052abc29f8392e50a83571fda0a9a44fc14c485bc9ae58b37ca51b00e.bin.exe
  • Size 66.0MB
  • Sample260328-qd4laset3q
  • SHA256 77fb832052abc29f8392e50a83571fda0a9a44fc14c485bc9ae58b37ca51b00e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 3.0

C2
  • 82.26.74.39:7000

Mutex
  • Pzco4SpJSHq0JUVI

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain

Extracted

Family
  • neconyd

C2
  • http://ow5dirasuek.com/

  • http://mkkuei4kdsz.com/

  • http://lousta.net/

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Office04

C2
  • understand-vip.gl.at.ply.gg:21304

Mutex
  • 966bc060-4ea7-43bd-9b30-06988ea8ba79

Attributes
  • encryption_key

    7FE83CB9F9DEA14FFA20DB6F8CD68A42656137B4

  • install_name

    Cleaner.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    MsEdge

  • subdirectory

    SubDir

Extracted

Family
  • umbral

Version
  • v1.3

C2
  • https://discord.com/api/webhooks/1399894662365577257/NMqgSKeL5lfvgkhf3U7otcHEUlUdExlRehLumOM1uhIYrXB5YDsltdJihrITmZu28SVz

Extracted

Family
  • stealc

Botnet
  • avtostopom

C2
  • http://45.141.233.187

Attributes
  • url_path

    /7d1ca61c169b4862.php

rc4.traffic_key
rc4.C2

Extracted

Family
  • redline

Botnet
  • jajaja

C2
  • 176.46.152.46:1911

Extracted

Family
  • lumma

C2
  • https://stolewnica.ru/xjuf

  • https://mastwin.in/qsaz

  • https://ordinarniyvrach.ru/xiur

  • https://yamakrug.ru/lzka

  • https://vishneviyjazz.ru/neco

  • https://yrokistorii.ru/uqya

  • https://visokiywkaf.ru/mmtn

  • https://kletkamozga.ru/iwyq

Attributes
  • build_id

    183c347859ef8d191a6ff2ec0670880da237bd8434

Extracted

Family
  • redline

Botnet
  • rdp

C2
  • mail-eco.gl.at.ply.gg:15149

Targets

    • Target
      77fb832052abc29f8392e50a83571fda0a9a44fc14c485bc9ae58b37ca51b00e.bin.exe
    • Size 66.0MB
    • SHA256 77fb832052abc29f8392e50a83571fda0a9a44fc14c485bc9ae58b37ca51b00e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Async RAT payload

    • AsyncRat

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

    • Asyncrat family

    • Blackmoon family

    • Blackmoon, KrBanker

      Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

    • Cobalt Strike reflective loader

      Detects the reflective loader used by Cobalt Strike.

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • Cobaltstrike family

    • Cosmu

      Cosmu is a Windows worm written in C++.

    • Cosmu family

    • Detect Blackmoon payload

    • Detect Xworm Payload

    • Detects Cosmu payload

      Cosmu is a worm written in C++.

    • Detects Ligolo reverse tunneling tool

    • Detects Mimilove part of Mimikatz

    • Detects Stealc stealer Version 2

    • Detects Umbral payload

    • Floxif family

    • Floxif, Floodfix

      Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

    • Gink family

    • Ligolo

      Ligolo is a cross-platform and an open-source reverse tunneling tool written in Golang .

    • Ligolo family

    • Lockbit

      Ransomware family with multiple variants released since late 2019.

    • Lockbit family

    • Lumma Stealer, LummaC

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

    • Lumma family

    • Mimikatz

      mimikatz is an open source tool to dump credentials on Windows.

    • Mimikatz family

    • Modifies visibility of hidden/system files in Explorer

    • Neconyd

      Neconyd is a trojan written in C++.

    • Neconyd family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Ramnit

      Ramnit is a versatile family that holds viruses, worms, and Trojans.

    • Ramnit family

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Redline family

    • Rule to detect Lockbit 3.0 ransomware Windows payload

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Sectoprat family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Umbral

      Umbral stealer is an open-source modular stealer written in C#.

    • Umbral family

    • Xmrig family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Detects Floxif payload

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

    • Renames multiple (1659) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Disables one or more Microsoft Defender components

      Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Uses browser remote debugging

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

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • 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.

    • Disables automatic submission of suspicious files to Microsoft by Windows Defender

      Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • 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

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v16

Tasks

static1

Score
3/10

behavioral1

adwarebankerbootkitavtostopomjajajaoffice04defense_evasiondiscoveryexecutionblackmoonginklockbitneconydquasarramnitredlinestealcumbralxmrigxworminfostealerminerpersistenceransomwareratspywarestealerthemidatrojanupxworm
Score
10/10

behavioral2

adwarebankerbootkitavtostopomjajajaoffice04defense_evasiondiscoveryexecutionblackmooncosmuginklockbitlummaneconydquasarramnitredlinestealcumbralxmrigxworminfostealerminerpersistenceransomwareratspywarestealerthemidatrojanupxworm
Score
10/10

behavioral3

backdoorbankeravtostopomjajajaoffice04rdpcredential_accessdefense_evasiondiscoveryexecutionasyncratblackmooncobaltstrikecosmufloxifginkligololockbitmimikatzneconydquasarramnitredlinesectopratstealcumbralxmrigxworminfostealerinstallerminerpersistencepyinstallerransomwareratspywarestealerthemidatrojanupxworm
Score
10/10