Resubmissions

03-02-2025 03:04

250203-dkkqjszkhq 10

03-02-2025 02:21

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03-02-2025 02:20

250203-csf7nawqbz 10

02-02-2025 21:21

250202-z7mdjsylhx 3

02-02-2025 18:40

250202-xbfvsawpaq 10

02-02-2025 18:19

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24-01-2025 01:23

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24-01-2025 00:12

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28-11-2024 02:19

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27-11-2024 21:08

241127-zyzyaawqgn 10

General

  • Target

    Downloaders.zip

  • Size

    12KB

  • Sample

    250202-xbfvsawpaq

  • MD5

    94fe78dc42e3403d06477f995770733c

  • SHA1

    ea6ba4a14bab2a976d62ea7ddd4940ec90560586

  • SHA256

    16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267

  • SHA512

    add85726e7d2c69068381688fe84defe820f600e6214eff029042e3002e9f4ad52dde3b8bb28f4148cca1b950cd54d3999ce9e8445c4562d1ef2efdb1c6bdeff

  • SSDEEP

    384:6BfwcSEp9ZjKXSBIDv4dDfjlMJ7HWTHWB:efACW6Dr8HWTHWB

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:8080

127.0.0.1:17027

2.tcp.ngrok.io:6606

2.tcp.ngrok.io:7707

2.tcp.ngrok.io:8808

2.tcp.ngrok.io:8080

2.tcp.ngrok.io:17027

Mutex

KSKA6RWWOYIu

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

remcos

Botnet

RemoteHost

C2

else-directors.gl.at.ply.gg:56448

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    $77-Bitdefender.exe

  • copy_folder

    Bitdefender

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-Z3DS2J

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    VisualStudioServer

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

tieumao1995-51127.portmap.io:51127

Mutex

4119a2e0-4ae4-4843-8534-99af91a2475d

Attributes
  • encryption_key

    DF6316067206E09C1F85138FCEBD56F5D94BF6AE

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Startup

  • subdirectory

    SubDir

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

wzt5xcg.localto.net:1604

wzt5xcg.localto.net:5274

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_file

    KYGOClient.exe

  • install_folder

    %AppData%

aes.plain
aes.plain

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

217.195.197.192:1604

Mutex

iG5Qu7mo7JWZRWS2JY

Attributes
  • encryption_key

    f8ffk4jC3Ygnfr2GgGiB

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1146486791835230260/bE9QI2eAT_dyqn0dm7VljbMDjUklfKOXxq3ua0HOtKeG6TIgizThvorpCYQf2NEkabwH

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office

C2

82.117.243.110:5173

Mutex

yfsS9ida0wX8mgpdJC

Attributes
  • encryption_key

    KDNBgA8jiBeGX1rj1dDt

  • install_name

    csrss.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    NET framework

  • subdirectory

    SubDir

Extracted

Family

xworm

C2

super-nearest.gl.at.ply.gg:17835

26.185.184.104:942

26.185.184.104:0942

Attributes
  • install_file

    USB.exe

Extracted

Family

quasar

Version

1.4.1

Botnet

Aryszx

C2

Apichat:4782

Mutex

181f4a12-4cad-46a9-9896-1001033c5b69

Attributes
  • encryption_key

    F4F359BEF442D9221F73F7D64267E0E300CC68CE

  • install_name

    Runtime Broker.exe

  • log_directory

    Logs

  • reconnect_delay

    1

  • startup_key

    Runtime Broker

Extracted

Family

quasar

Version

1.4.1

Botnet

ZJEB

C2

VIPEEK1990-25013.portmap.host:25013

Mutex

ad21b115-2c1b-40cb-adba-a50736b76c21

Attributes
  • encryption_key

    3EBA8BC34FA983893A9B07B831E7CEB183F7492D

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Security Service

  • subdirectory

    SubDir

Extracted

Family

vidar

C2

https://t.me/m08mbk

https://steamcommunity.com/profiles/76561199820567237

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Extracted

Family

redline

Botnet

LiveTraffoc

C2

4.185.56.82:42687

Targets

    • Target

      Downloaders.zip

    • Size

      12KB

    • MD5

      94fe78dc42e3403d06477f995770733c

    • SHA1

      ea6ba4a14bab2a976d62ea7ddd4940ec90560586

    • SHA256

      16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267

    • SHA512

      add85726e7d2c69068381688fe84defe820f600e6214eff029042e3002e9f4ad52dde3b8bb28f4148cca1b950cd54d3999ce9e8445c4562d1ef2efdb1c6bdeff

    • SSDEEP

      384:6BfwcSEp9ZjKXSBIDv4dDfjlMJ7HWTHWB:efACW6Dr8HWTHWB

    • 44Caliber

      An open source infostealer written in C#.

    • 44Caliber family

    • AsyncRat

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

    • Asyncrat family

    • 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

    • RedLine

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

    • RedLine payload

    • Redline family

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Remcos family

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Async RAT payload

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

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

    • Modifies boot configuration data using bcdedit

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

    • Adds policy Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Event Triggered Execution: Image File Execution Options Injection

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks BIOS information in registry

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

    • Clipboard Data

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

    • Drops startup file

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Uses the VBS compiler for execution

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Enumerates connected drives

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

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Detected potential entity reuse from brand MICROSOFT.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • 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