Resubmissions

15/09/2026, 11:12

260915-navswatygv10

07/09/2026, 00:25

260907-aqql7sttav10

04/08/2026, 14:58

260804-sb5rpashpf10

04/08/2026, 06:06

260804-gt3t9seb3810

04/08/2026, 05:43

260804-gey8jaw1bx10

24/07/2026, 07:14

260724-h2zy1svbmg10

24/07/2026, 07:09

260724-hy9ztatwfy10

24/07/2026, 06:50

260724-hmdggahn6v10

21/07/2026, 16:13

260721-tpe9macc423

21/07/2026, 16:00

260721-tfvb7axvcy10

General

  • Target
    Downloaders.zip
  • Size 12KB
  • Sample241126-xpcehs1lck
  • SHA256 16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Office04

C2
  • 192.168.100.18:4782

Mutex
  • 2cbe985c-9a4f-4f1f-a761-cd05d5feff4b

Attributes
  • encryption_key

    9493303F9F1D303190787B3D987F2DCB2BAF3CFD

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family
  • quasar

Version
  • 1.4.0

Botnet
  • Office04

C2
  • 137.184.144.245:4782

Mutex
  • 6cfe4a65-c41d-4b02-9ae9-e727a748ae84

Attributes
  • encryption_key

    B702BA239316FCF317B584A351F2EC1696EBE772

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    java updater

  • subdirectory

    SubDir

Extracted

Family
  • amadey

Version
  • 4.41

Botnet
  • fed3aa

C2
  • http://185.215.113.16

Attributes
  • install_dir

    44111dbc49

  • install_file

    axplong.exe

  • strings_key

    8d0ad6945b1a30a186ec2d30be6db0b5

  • url_paths

    /Jo89Ku7d/index.php

rc4.plain

Extracted

Family
  • stealc

Botnet
  • default_valenciga

C2
  • http://185.215.113.17

Attributes
  • url_path

    /2fb6c2cc8dce150a.php

Extracted

Family
  • lumma

C2
  • https://crib-endanger.sbs

  • https://faintbl0w.sbs

  • https://300snails.sbs

  • https://bored-light.sbs

  • https://3xc1aimbl0w.sbs

  • https://pull-trucker.sbs

  • https://fleez-inc.sbs

  • https://thicktoys.sbs

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 45.141.26.170:7000

Mutex
  • kkeD0iZ90XXPXCyz

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    VLC_Media.exe

aes.plain

Extracted

Family
  • stealc

Botnet
  • mars

C2
  • http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family
  • redline

C2
  • 38.180.109.140:20007

Extracted

Family
  • lumma

C2
  • https://push-hook.cyou/api

Targets

    • Target
      4363463463464363463463463.exe
    • Size 10KB
    • SHA256 2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce
    • MD5 SHA1 SHA512 SSDEEP
    • Amadey

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

    • Amadey family

    • Ammyy Admin

      Remote admin tool with various capabilities.

    • AmmyyAdmin payload

    • Ammyyadmin family

    • AsyncRat

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

    • Asyncrat family

    • BabbleLoader

      BabbleLoader is a malware loader written in C++.

    • Babbleloader family

    • Detect Neshta payload

    • Detect Xworm Payload

    • Detects BabbleLoader Payload

    • Detects ZharkBot payload

      ZharkBot is a botnet written C++.

    • FlawedAmmyy RAT

      Remote-access trojan based on leaked code for the Ammyy remote admin software.

    • Flawedammyy family

    • Lumma Stealer, LummaC

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

    • Lumma family

    • Neshta

      Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

    • Neshta family

    • Phorphiex family

    • Phorphiex payload

    • Phorphiex, Phorpiex

      Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • RedLine

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

    • RedLine payload

    • Redline family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • ZharkBot

      ZharkBot is a botnet written C++.

    • Zharkbot family

    • Async RAT payload

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • 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

    • Modifies system executable filetype association

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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.

    • Checks whether UAC is enabled

    • Indicator Removal: File Deletion

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

    • 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

    • Enumerates processes with tasklist

    • 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 v15

Tasks