Resubmissions

12/09/2024, 02:23

240912-cvfznswere10

04/09/2024, 00:09

240904-afvheascla10

03/09/2024, 18:57

240903-xl8csavfrb10

03/09/2024, 18:12

240903-ws828asgnm10

General

  • Target
    Archive.zip
  • Size 25.8MB
  • Sample240904-afvheascla
  • SHA256 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • pastebin_url

    https://pastebin.com/raw/2jTT3Lnj

Extracted

Family
  • revengerat

Botnet
  • system

C2
  • yj233.e1.luyouxia.net:20645

Mutex
  • RV_MUTEX-GeVqDyMpzZJHO

Extracted

Family
  • azorult

C2
  • http://195.245.112.115/index.php

Extracted

Family
  • lumma

C2
  • https://whispedwoodmoodsksl.shop/api

  • https://acceptabledcooeprs.shop/api

  • https://obsceneclassyjuwks.shop/api

  • https://zippyfinickysofwps.shop/api

  • https://miniaturefinerninewjs.shop/api

  • https://plaintediousidowsko.shop/api

  • https://sweetsquarediaslw.shop/api

  • https://holicisticscrarws.shop/api

  • https://boredimperissvieos.shop/api

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.pro-powersourcing.com

  • Port

    587

  • Password

    china1977

Extracted

Family
  • formbook

Version
  • 4.0

Campaign
  • w9z

Decoy
  • crazzysex.com

  • hanferd.com

  • gteesrd.com

  • bayfrontbabyplace.com

  • jicuiquan.net

  • relationshiplink.net

  • ohchacyberphoto.com

  • kauegimenes.com

  • powerful-seldom.com

  • ketotoken.com

  • make-money-online-success.com

  • redgoldcollection.com

  • hannan-football.com

  • hamptondc.com

  • vllii.com

  • aa8520.com

  • platform35markethall.com

  • larozeimmo.com

  • oligopoly.net

  • llhak.info

Extracted

Family
  • gozi

Attributes
  • build

    300869

  • exe_type

    loader

Extracted

Family
  • gozi

Botnet
  • 86920224

C2
  • https://sibelikinciel.xyz

Attributes
  • build

    300869

  • exe_type

    loader

  • server_id

    12

  • url_path

    index.htm

rsa_pubkey.plain
serpent.plain

Extracted

Family
  • danabot

C2
  • 92.204.160.54

  • 2.56.213.179

  • 45.153.186.47

  • 93.115.21.29

  • 185.45.193.50

  • 193.34.166.247

rsa_pubkey.plain

Targets

    • Target
      Archive.zip
    • Size 25.8MB
    • SHA256 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Dropper/Berbew.exe
    • Size 109KB
    • SHA256 90a4b2cba38cde1495721ebc965e888440e212585cb565acf18b6216631d13d1
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    • Adds autorun key to be loaded by Explorer.exe on startup

    • Executes dropped EXE

    • Drops file in System32 directory

    • Target
      Dropper/Phorphiex.exe
    • Size 143KB
    • SHA256 90d3580e187b631a9150bbb4a640b84c6fa990437febdc42f687cc7b3ce1deac
    • MD5 SHA1 SHA512 SSDEEP
    • Phorphiex, Phorpiex

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

    • Windows security bypass

    • Executes dropped EXE

    • UPX packed file

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

    • Windows security modification

    • Adds Run key to start application

    • Target
      out.upx
    • Size 266KB
    • SHA256 7f12d8502c88112a227dd460e61a24f5c363f4bb8fec0f72ed432ead21842fb6
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      RAT/31.exe
    • Size 12.5MB
    • SHA256 7570a7a6830ade05dcf862d5862f12f12445dbd3c0ad7433d90872849e11c267
    • MD5 SHA1 SHA512 SSDEEP
    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Danabot

      Danabot is a modular banking Trojan that has been linked with other malware.

    • Danabot x86 payload

      Detection of Danabot x86 payload, mapped in memory during the execution of its loader.

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

    • Formbook

      Formbook is a data stealing malware which is capable of stealing data.

    • Gozi

      Gozi is a well-known and widely distributed banking trojan.

    • Qakbot/Qbot

      Qbot or Qakbot is a sophisticated worm with banking capabilities.

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • Raccoon Stealer V1 payload

    • AgentTesla payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • CryptOne packer

      Detects CryptOne packer defined in NCC blogpost.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Formbook payload

    • Looks for VirtualBox Guest Additions in registry

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Renames multiple (440) files with added filename extension

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

    • Adds policy Run key to start application

    • Blocklisted process makes network request

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Looks for VMWare Tools registry key

    • System Binary Proxy Execution: InstallUtil

      Abuse InstallUtil to proxy execution of malicious code.

    • Checks BIOS information in registry

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

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Maps connected drives based on registry

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target
      RAT/XClient.exe
    • Size 172KB
    • SHA256 75a8719e83e4aecbe51287d7bfaf1e334fa190c7784324f24bcf61ab984de20a
    • MD5 SHA1 SHA512 SSDEEP
    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

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

    • Drops startup file

    • Adds Run key to start application

    • 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.

    • Target
      RAT/file.exe
    • Size 101KB
    • SHA256 275e4633982c0b779c6dcc0a3dab4b2742ec05bc1a3364c64745cbfe74302c06
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Uses the VBS compiler for execution

    • Adds Run key to start application

    • Target
      Ransomware/Client-2.exe
    • Size 80KB
    • SHA256 69c56d12ed7024696936fb69b4c6bee58174a275cb53fa966646a0b092d9626b
    • MD5 SHA1 SHA512 SSDEEP
    • Disables service(s)

    • Hakbit

      Ransomware which encrypts files using AES, first seen in November 2019.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

    • Drops startup file

    • Reads user/profile data of web browsers

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

    • Target
      Ransomware/criticalupdate01.exe
    • Size 261KB
    • SHA256 f4234a501edcd30d3bc15c983692c9450383b73bdd310059405c5e3a43cc730b
    • MD5 SHA1 SHA512 SSDEEP
    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (4645) files with added filename extension

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

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

    • Target
      Ransomware/default.exe
    • Size 211KB
    • SHA256 516475caf3fbd1f0c0283572550528f1f9e7b502dce5fb6b89d40f366a150bfd
    • MD5 SHA1 SHA512 SSDEEP
    • Detects Zeppelin payload

    • Zeppelin Ransomware

      Ransomware-as-a-service (RaaS) written in Delphi and first seen in 2019.

    • Deletes itself

    • Executes dropped EXE

    • Adds Run key to start application

    • 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.

    • Target
      Stealers/Azorult.exe
    • Size 10.6MB
    • SHA256 3e385633fc19035dadecf79176a763fe675429b611dac5af2775dd3edca23ab9
    • MD5 SHA1 SHA512 SSDEEP
    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Modifies Windows Defender Real-time Protection settings

    • Modifies visiblity of hidden/system files in Explorer

    • RMS

      Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

    • UAC bypass

    • Windows security bypass

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Remote Service Session Hijacking: RDP Hijacking

      Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.

    • Blocks application from running via registry modification

      Adds application to list of disallowed applications.

    • Boot or Logon Autostart Execution: Port Monitors

      Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Server Software Component: Terminal Services DLL

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Stops running service(s)

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • UPX packed file

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

    • Adds Run key to start application

    • 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.

    • Modifies WinLogon

    • Password Policy Discovery

      Attempt to access detailed information about the password policy used within an enterprise network.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Hide Artifacts: Hidden Users

    • Target
      Stealers/BlackMoon.exe
    • Size 387KB
    • SHA256 e6dd3fa33ad938b07c8978691f86b73e9f6fd84104b92f42566498bdb6b2930e
    • MD5 SHA1 SHA512 SSDEEP
    • Blackmoon, KrBanker

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

    • Detect Blackmoon payload

    • Executes dropped EXE

    • UPX packed file

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

    • Target
      Stealers/Dridex.exe
    • Size 1.2MB
    • SHA256 af26296c75ff26f7ee865df424522d75366ae3e2e80d7d9e89ef8c9398b0836d
    • MD5 SHA1 SHA512 SSDEEP
    • Dridex

      Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

    • Dridex Shellcode

      Detects Dridex Payload shellcode injected in Explorer process.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Target
      Stealers/Masslogger/mouse_2.exe
    • Size 984KB
    • SHA256 03968a3a5a7a880feefca31686fcfbed445080a0c06eda2b6d623757179b782c
    • MD5 SHA1 SHA512 SSDEEP
    • MassLogger

      Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    • MassLogger Main payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

    • Target
      Stealers/lumma.exe
    • Size 311KB
    • SHA256 7d2cacef8fc24cd30f6b0596abaf37342f85ab1d8b6b0ccf01ad1bdb79317d92
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    • Lumma Stealer, LummaC

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

    • Target
      Trojan/BetaBot.exe
    • Size 609KB
    • SHA256 a9963808a1a358d6ee26ab88bdab4add50512de1a863aa79937815444ee64da8
    • MD5 SHA1 SHA512 SSDEEP
    • BetaBot

      Beta Bot is a Trojan that infects computers and disables Antivirus.

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Modifies firewall policy service

    • ModiLoader Second Stage

    • Event Triggered Execution: Image File Execution Options Injection

    • Checks BIOS information in registry

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

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Indicator Removal: Clear Persistence

      remove IFEO.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target
      Trojan/SmokeLoader.exe
    • Size 251KB
    • SHA256 30f9db1f5838abb6c1580fdfb7f5dcfd7c2ac8cfac50c2edd0c8415d66212c95
    • MD5 SHA1 SHA512 SSDEEP
    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks

static1

upxstealersystemxwormrevengeratzeppelinmodiloader
Score
10/10

behavioral1

Score
1/10

behavioral2

discoverypersistence
Score
10/10

behavioral3

phorphiexdiscoveryevasionloaderpersistencetrojanupxworm
Score
10/10

behavioral4

discovery
Score
3/10

behavioral5

agenttesladanabotdharmaformbookgoziqakbotraccoon86920224w9zagilenetbankerbotnetcollectioncredential_accesscryptonedefense_evasiondiscoveryevasionexecutionimpactkeyloggerpackerpersistenceprivilege_escalationransomwareratrezer0rm3spywarestealertrojan
Score
10/10

behavioral6

xwormexecutionpersistencerattrojan
Score
10/10

behavioral7

persistence
Score
7/10

behavioral8

hakbitcredential_accessdiscoveryevasionexecutionransomwarespywarestealer
Score
10/10

behavioral9

fantomdefense_evasiondiscoveryevasionexecutionimpactransomwarespywarestealer
Score
10/10

behavioral10

zeppelindiscoverypersistenceransomware
Score
10/10

behavioral11

azorultrmsaspackv2defense_evasiondiscoveryevasionexecutioninfostealerlateral_movementpersistenceprivilege_escalationrattrojanupx
Score
10/10

behavioral12

blackmoonbankerdiscoverytrojanupx
Score
10/10

behavioral13

dridexbotnetevasionpayloadpersistenceprivilege_escalationtrojan
Score
10/10

behavioral14

massloggercollectioncredential_accessdiscoveryrezer0spywarestealer
Score
10/10

behavioral15

lummadiscoverystealer
Score
10/10

behavioral16

betabotmodiloaderbackdoorbotnetdefense_evasiondiscoveryevasionpersistencetrojan
Score
10/10

behavioral17

smokeloaderbackdoordiscoverytrojan
Score
10/10