General

  • Target

    241212-wymq6ssnat_pw_infected.zip

  • Size

    8KB

  • Sample

    250101-xr79za1pal

  • MD5

    46e1dda34049ae02d12417a9ca4254a8

  • SHA1

    a9f38b7196980f20c3fee1172538db73f2065284

  • SHA256

    ba3b60449327330b4e55df4528ebcfb7b12cd3e51c16d8b56680314e43d72be2

  • SHA512

    92f17e843d624c20ad16360ed855ff1c02895379a83bd2054374f0a6f9ee3697cdee1b4d38b3833bd2c784f45504541729c29c66275eaa7f137d6d47ab340afb

  • SSDEEP

    192:bxH3A0QJWWqMk3Vp/c8hUwuz4TV3JYih6wEpby+Od7/60i2j:bxHNpfVl2bzFWDE9o/60p

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

70.34.210.80:4782

192.168.1.203:4782

69.232.48.67:4782

Mutex

0d965223-b478-41be-af32-ad5a13d78eba

Attributes
  • encryption_key

    EBD92C218F947CFB9F2E27885F8DFFEAE9079F05

  • install_name

    MSWinpreference.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Skype

  • subdirectory

    SubDir

Extracted

Family

quasar

Version

1.4.1

Botnet

Helper Atanka

C2

193.203.238.136:8080

Mutex

14f39659-ca5b-4af7-8045-bed3500c385f

Attributes
  • encryption_key

    11049F2AEBDCF8E3A57474CD5FBA40FB2FFC5424

  • install_name

    diskutil.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    diskutil

  • subdirectory

    diskutil

Extracted

Family

quasar

Version

1.4.1

Botnet

DDNS

C2

193.161.193.99:32471

Mutex

807f3187-d087-4fff-beff-e73293a32af8

Attributes
  • encryption_key

    81A0C14D4C705B3C678E573C849DE7F6A3671A8B

  • install_name

    jusched.exe

  • log_directory

    CachedLogs

  • reconnect_delay

    3000

  • startup_key

    Java Update Scheduler

  • subdirectory

    Java

Extracted

Family

xworm

C2

among-publication.at.ply.gg:42209

Attributes
  • Install_directory

    %Temp%

  • install_file

    USB.exe

Extracted

Family

quasar

Version

1.4.0

Botnet

svhost

C2

151.177.61.79:4782

Mutex

a148a6d8-1253-4e62-bc5f-c0242dd62e69

Attributes
  • encryption_key

    5BEC1A8BC6F8F695D1337C51454E0B7F3A4FE968

  • install_name

    svhost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhost

  • subdirectory

    svhost

Extracted

Family

stealc

Botnet

Voov

C2

http://154.216.17.90

Attributes
  • url_path

    /a48146f6763ef3af.php

Extracted

Family

quasar

Version

1.4.1

Botnet

rat1

C2

147.185.221.24:15249

Mutex

da67ff1b-f911-4ad4-a51c-c7c5bd13aeb3

Attributes
  • encryption_key

    AB7A97D9E0F9B0A44190A0D500EAB7AF37629802

  • install_name

    System32.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    System32

  • subdirectory

    System32

Targets

    • Target

      241212-wymq6ssnat_pw_infected.zip

    • Size

      8KB

    • MD5

      46e1dda34049ae02d12417a9ca4254a8

    • SHA1

      a9f38b7196980f20c3fee1172538db73f2065284

    • SHA256

      ba3b60449327330b4e55df4528ebcfb7b12cd3e51c16d8b56680314e43d72be2

    • SHA512

      92f17e843d624c20ad16360ed855ff1c02895379a83bd2054374f0a6f9ee3697cdee1b4d38b3833bd2c784f45504541729c29c66275eaa7f137d6d47ab340afb

    • SSDEEP

      192:bxH3A0QJWWqMk3Vp/c8hUwuz4TV3JYih6wEpby+Od7/60i2j:bxHNpfVl2bzFWDE9o/60p

    • AsyncRat

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

    • Asyncrat family

    • Detect Vidar Stealer

    • Detect Xworm Payload

    • Mimikatz

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

    • Mimikatz family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • XMRig Miner payload

    • 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.

    • Async RAT payload

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Stops running service(s)

    • Checks computer location settings

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

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • 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.

    • 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.

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

    • 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