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16-01-2025 17:29

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16-01-2025 17:27

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13-01-2025 14:41

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General

  • Target

    4363463463464363463463463.exe.zip

  • Size

    4KB

  • Sample

    250116-v1g32a1qfk

  • MD5

    7b2b0ccc6317a6becadaf5e02311202e

  • SHA1

    ccad99b8fad61369101e068f0c3a5bec9cfa309f

  • SHA256

    bd948aeb2b607b34e8d32f22b9e5aee402057adebae4a2e0c70bd666e688f1f8

  • SHA512

    b7af04ee0792d2a13ffd7013e7c5f98cf037f06f8597e4f3261af04252137483ff7fcb7db28c60a543f130ac65307cd1c7a831c2267fa78a91f9acdcc535744a

  • SSDEEP

    96:ALOzCoGgabugh2Yu8fjMIsSv3JGHUrD5gf2jxkS7xQIKWV7YNgGptaT+YaL:ALObGgabf88jgcxR1NWIXWgGpo74

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

0.tcp.us-cal-1.ngrok.io:11837

Mutex

11bbf22e-826e-486b-b024-adbd86228a9e

Attributes
  • encryption_key

    7A589EDBC6A581E125BF830EF0D05FC74BB75E30

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    ctfmon

  • subdirectory

    SubDir

Extracted

Family

quasar

Version

1.4.1

Botnet

Manager

C2

serveo.net:11453

Mutex

a851cc5b-e50f-4270-9929-06c6323cdb3d

Attributes
  • encryption_key

    5A3C537E5FB2739D5B2468FC37915D58EF4AC5EA

  • install_name

    Runtime broker.exe

  • log_directory

    Microsoftsessential

  • reconnect_delay

    3000

  • startup_key

    Runtime broker

  • subdirectory

    Microsoft_Essentials

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

0.tcp.eu.ngrok.io:15174

0.tcp.in.ngrok.io:10147

172.204.136.22:1604

Mutex

aNoM7pvDUvoo

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain
aes.plain
aes.plain

Extracted

Family

xworm

C2

127.0.0.1:48990

147.185.221.22:48990

163.5.215.245:9049

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    svchostt.exe

aes.plain

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office

C2

45.136.51.217:2222

82.117.243.110:5173

Mutex

d1mBeqcqGummV1rEKw

Attributes
  • encryption_key

    h9j7M9986eVjQwMbjacZ

  • install_name

    csrss.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    NET framework

  • subdirectory

    SubDir

Extracted

Family

stealc

Botnet

QQtalk1

C2

http://154.216.17.90

Attributes
  • url_path

    /a48146f6763ef3af.php

Extracted

Family

vidar

Version

11.3

Botnet

a21440e9f7223be06be5f5e2f94969c7

C2

https://t.me/asg7rd

https://steamcommunity.com/profiles/76561199794498376

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Extracted

Family

xworm

Version

3.0

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/ct3KF8KR

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

3.70.228.168:555

Mutex

bslxturcmlpmyqrv

Attributes
  • delay

    1

  • install

    true

  • install_file

    atat.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

lumma

C2

https://impend-differ.biz/api

https://print-vexer.biz/api

https://dare-curbys.biz/api

https://covery-mover.biz/api

https://formy-spill.biz/api

https://dwell-exclaim.biz/api

https://zinc-sneark.biz/api

https://se-blurry.biz/api

https://ponintnykqwm.shop/api

Extracted

Family

stealc

Botnet

Voov2

C2

http://154.216.17.90

Attributes
  • url_path

    /a48146f6763ef3af.php

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

Targets

    • Target

      4363463463464363463463463.exe.bin

    • Size

      10KB

    • MD5

      2a94f3960c58c6e70826495f76d00b85

    • SHA1

      e2a1a5641295f5ebf01a37ac1c170ac0814bb71a

    • SHA256

      2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce

    • SHA512

      fbf55b55fcfb12eb8c029562956229208b9e8e2591859d6336c28a590c92a4d0f7033a77c46ef6ebe07ddfca353aba1e84b51907cd774beab148ee901c92d62f

    • SSDEEP

      192:xlwayyHOXGc20L7BIW12n/ePSjiTlzkGu8stYcFwVc03KY:xlwwHe/20PKn/cLTlHuptYcFwVc03K

    • AsyncRat

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

    • Asyncrat family

    • Detect Vidar Stealer

    • Detect Xworm Payload

    • Lockbit

      Ransomware family with multiple variants released since late 2019.

    • Lockbit family

    • Lumma Stealer, LummaC

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

    • Lumma family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Rule to detect Lockbit 3.0 ransomware Windows payload

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc 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

    • 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

    • Modifies Windows Firewall

    • Stops running service(s)

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Drops file in System32 directory

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks