Resubmissions

28-11-2024 19:39

241128-yc84dstkfn 10

16-11-2024 19:52

241116-ylqcmssfqd 10

16-11-2024 17:56

241116-wjcyeszmht 10

General

  • Target

    New Text Document.exe.zip

  • Size

    1KB

  • Sample

    241116-ylqcmssfqd

  • MD5

    f3910b212669210383b5efcd278818fe

  • SHA1

    1708977352c5b19d8c126797a34cd1d8eedcfd19

  • SHA256

    85b8d5214c0bc80b888c6a3404c2a371e3aaba32561d069f454b0af159015396

  • SHA512

    f6ab525df5e79d59f05ac7618de628e1e5bf956ce8db9add144214c2c8a64282a0ce79c46ca4b88c1f7754ab8cb7f0883a080e1096c9561edb1f455aff95b499

Malware Config

Extracted

Family

metasploit

Version

windows/reverse_tcp

C2

64.176.38.237:8139

64.176.38.237:443

Extracted

Family

vipkeylogger

Credentials

Extracted

Family

lumma

C2

https://c0al1t1onmatch.cyou/api

Targets

    • Target

      New Text Document.exe.zip

    • Size

      1KB

    • MD5

      f3910b212669210383b5efcd278818fe

    • SHA1

      1708977352c5b19d8c126797a34cd1d8eedcfd19

    • SHA256

      85b8d5214c0bc80b888c6a3404c2a371e3aaba32561d069f454b0af159015396

    • SHA512

      f6ab525df5e79d59f05ac7618de628e1e5bf956ce8db9add144214c2c8a64282a0ce79c46ca4b88c1f7754ab8cb7f0883a080e1096c9561edb1f455aff95b499

    • Detect PurpleFox Rootkit

      Detect PurpleFox Rootkit.

    • Detects ZharkBot payload

      ZharkBot is a botnet written C++.

    • Gh0st RAT payload

    • Gh0strat

      Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

    • Gh0strat family

    • Lumma Stealer, LummaC

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

    • Lumma family

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • Metasploit family

    • Modifies WinLogon for persistence

    • PurpleFox

      PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

    • Purplefox family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

    • VIPKeylogger

      VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

    • Vipkeylogger family

    • ZharkBot

      ZharkBot is a botnet written C++.

    • Zharkbot family

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Sets service image path in registry

    • Stops running service(s)

    • .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.

    • 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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Accesses Microsoft Outlook accounts

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • 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

    • Drops desktop.ini file(s)

    • 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.

    • Drops file in System32 directory

    • 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