Resubmissions

04/10/2026, 22:55

261004-2wkfxsyfpf10

04/10/2026, 22:41

261004-2mejbaszax10

03/10/2026, 15:10

261003-sj2p1aszey10

27/09/2026, 08:25

260927-ka9egsts4j10

27/09/2026, 08:18

260927-j7p7fas16n10

26/09/2026, 10:25

260926-mf8fgsdd8610

26/09/2026, 10:13

260926-l851ds1djg10

24/09/2026, 12:57

260924-p6wkqathrd10

24/09/2026, 12:18

260924-pgt1la1v6n10

23/09/2026, 23:53

260923-3xdv7sgf8610

General

  • Target
    4363463463464363463463463.exe.bin
  • Size 10KB
  • Sample260817-w12ccadb28
  • SHA256 2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Credentials
  • Protocol

    ftp

  • Host

    sanghyun.nfile.net

  • Port

    21

  • Username

    anonymous

  • Password

    qkdansror-!!

Extracted

Family
  • cobaltstrike

C2
  • http://193.37.69.43:95/SuOF

Attributes
  • user_agent

    User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)

Extracted

Family
  • svcstealer

C2
  • http://196.251.107.186/acovp/post.php

  • http://192.162.199.186/usovp/post.php

  • http://196.251.107.163/bioxp/post.php

Attributes
  • build_id

    SlLoaded

  • srv_delay

    1

  • srv_retry

    1

Extracted

Family
  • phorphiex

C2
  • http://178.16.54.109

Extracted

Family
  • needle_stealer

C2
  • http://130.12.180.135:3000/api/v2

Attributes
  • api_key

    alk_2f668968ee87e7d30f8b996112bebef880cfe8626af9c1d8d53e0f719e47be4f

  • base_extension

    false

  • self_destruct

    false

Extracted

Family
  • phorphiex

C2
  • http://178.16.55.240/nm/

  • http://178.16.54.109/c/

Mutex
  • 086975864

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/202.0.4664.110 Safari/537.36

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • Office04

C2
  • 94.158.245.53:9992

Mutex
  • 4abbc77f-27e2-4983-8fe9-6fafbfb7627b

Attributes
  • encryption_key

    F5CCD6560C6A9C857BE240A8EE0DF9CF88BC3B2B

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family
  • vidar

Version
  • 1.5

Botnet
  • 3bc41b1aa7524456de3f85c8d329d639

C2
  • https://1.me/hgo9tx

  • https://steamcommunity.com/profiles/76561198707628078

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0

Extracted

Family
  • stealc

Botnet
  • R909

C2
  • http://45.131.214.189

Attributes
  • url_path

    /6a4133a676c340b0b27b.php

rc4.traffic_key
rc4.C2

Extracted

Family
  • remus_stealer

C2
  • http://carogra.biz:4219

  • http://angect.xyz:7838

  • http://myrtler.biz:9549

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 185.208.156.210:7000

Mutex
  • oZ1kVjhDzAsWplGu

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

aes.plain

Extracted

Family
  • xworm

Version
  • XWorm V5.6

C2
  • christian-optimal.gl.at.ply.gg:18136

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    System.exe

Extracted

Family
  • fleshstealer

C2
  • 89.23.100.233:8401

Extracted

Family
  • asyncrat

Botnet
  • Default

Attributes
  • delay

    1

  • install

    true

  • install_file

    vortex.exe

  • install_folder

    %AppData%

  • local_host

    127.0.0.1

aes.plain

Targets

    • Target
      4363463463464363463463463.exe.bin
    • Size 10KB
    • SHA256 2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • AmmyyAdmin payload

    • Async RAT payload

    • Detect Xworm Payload

    • Detects MythicApollo

    • Detects NeedleStealer payload

    • Detects SharpHound hacktool

    • Detects Stealc stealer Version 2

    • Family: Ammyy Admin

      Remote admin tool with various capabilities.

    • Family: AsyncRat

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

    • Family: Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • Family: Flesh Stealer

      Flesh Stealer is a wallet stealer written in C#.

    • Family: Mimikatz

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

    • Family: MythicApollo

      Mythic Apollo is a Windows agent written in C# for the Mythic C2 framework, used in SpecterOps training.

    • Family: NeedleStealer

      NeedleStealer is a modular stealer written in Golang.

    • Family: Phorphiex, Phorpiex

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

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Family: Remus

      Remus is a stealer written in C++.

    • Family: SharpHound

      SharpHound is an open-source tool that collects Active Directory data for BloodHound analysis.

    • Family: Stealc

      Stealc is an infostealer written in C++.

    • Family: SvcStealer, Diamotrix

      SvcStealer aka Diamotrix Clipper is a stealer/downloader written in C++.

    • Family: Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Family: xmrig

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

    • Modifies firewall policy service

    • Quasar payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • XMRig Miner payload

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

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Contacts a large (537) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Indicator Removal: Network Share Connection Removal

      Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation.

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to make their binary seem validly signed.

    • Modifies RDP port number used by Windows

    • Modifies Windows Firewall

    • Server Software Component: Terminal Services DLL

    • Signed with revoked ConnectWise certificate

      Binary is signed using a ConnectWise certificate revoked for key compromise.

    • Uses browser remote debugging

      Can be used to 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.

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Creates new service(s)

    • Cryptocurrency Miner

      Makes network request to known mining pool URL.

    • 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.

    • Stops running service(s)

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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

    • Contacts third-party web service commonly abused for C2

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

    • Enumerates connected drives

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

    • Hijack Execution Flow: Executable Installer File Permissions Weakness

      Possible Turn off User Account Control's privilege elevation for standard users.

    • Looks up external IP address via web service

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

    • Modifies WinLogon

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Writes to the Master Boot Record (MBR)

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

    • Drops file in System32 directory

    • SmartAssembly .NET packer

      Detects SmartAssembly .NET packer.

    • 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