Resubmissions

25-01-2025 23:19

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25-01-2025 00:39

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25-01-2025 00:32

250125-avsblawpdx 10

25-01-2025 00:29

250125-as5h5swnfv 10

04-12-2024 19:44

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28-11-2024 19:40

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20-11-2024 16:31

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20-11-2024 05:52

241120-gk2kvaxkgn 10

General

  • Target

    4363463463464363463463463.exe.zip

  • Size

    4KB

  • Sample

    250125-avsblawpdx

  • MD5

    16d34133af438a73419a49de605576d9

  • SHA1

    c3dbcd70359fdad8835091c714a7a275c59bd732

  • SHA256

    e4ec3a45621dd556deeea5f953fa05909c82630e9f17baf6b14272a0360d62d1

  • SHA512

    59c0272d6faa2682b7a6ce1cd414d53cc39f06035f4f38a2e206965805034bf8012b02d59f428973965136d70c89f87ac3b17b5db9c1b1d49844be182b47a3d7

  • SSDEEP

    96:xBf1inGx9SfZ+VCv3wlTDMQ1kyKXyyJNOBIKkNvL5qK+7zHf6MlYOQVPGmcEy:xBfwncSf8Cv3w9DZjKXjmBIKEvLs97D5

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

one-accordance.gl.at.ply.gg:9590

Attributes
  • delay

    1

  • install

    true

  • install_file

    Windows Defender.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

Extazz24535-22930.portmap.host:22930

interestingsigma.hopto.org:20

0.tcp.us-cal-1.ngrok.io:15579

104.251.123.245:23600

Mutex

89f58ee5-7af9-42de-843f-2a331a641e3f

Attributes
  • encryption_key

    CD4F349DEB46AEE10C2FE886E5B2BD7A766723CE

  • install_name

    2klz.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

18.ip.gl.ply.gg:6606

18.ip.gl.ply.gg:7707

18.ip.gl.ply.gg:8808

18.ip.gl.ply.gg:9028

Mutex

7U2HW8ZYjc9H

Attributes
  • delay

    3

  • install

    true

  • install_file

    Discord.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

stealc

Botnet

7140196255

C2

http://83.217.209.11

Attributes
  • url_path

    /fd2453cf4b7dd4a4.php

Extracted

Family

xworm

Version

3.0

C2

soon-lp.at.ply.gg:17209

Attributes
  • Install_directory

    %AppData%

  • install_file

    NjRat Dangerous.exe

Extracted

Family

quasar

Version

1.4.1

Botnet

dilly

C2

lvke-45989.portmap.host:45989

Mutex

0cb49dc2-fd0d-4581-ae1e-04154c41f310

Attributes
  • encryption_key

    E5250226804167CB0B1B4B0E9667D0C056694DCA

  • install_name

    defenderx64.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Defender Helper

  • subdirectory

    en

Extracted

Family

xworm

C2

among-publication.at.ply.gg:42209

127.0.0.1:48990

147.185.221.22:48990

Attributes
  • Install_directory

    %Temp%

  • install_file

    USB.exe

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

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:8080

127.0.0.1:18274

6.tcp.eu.ngrok.io:6606

6.tcp.eu.ngrok.io:7707

6.tcp.eu.ngrok.io:8808

6.tcp.eu.ngrok.io:8080

6.tcp.eu.ngrok.io:18274

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain
aes.plain

Extracted

Family

xworm

Version

5.0

C2

45.141.26.234:7000

87.120.113.179:7000

Mutex

N8UxQtPS61Z7lofo

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    Java Update(32bit).exe

aes.plain
aes.plain

Extracted

Family

quasar

Version

1.4.1

Botnet

Iwantusamo

C2

98.51.190.130:20

Mutex

de054988-dbed-49f6-834a-dda51ccd494b

Attributes
  • encryption_key

    28DB6A992E078CF6FE82A1042CC979D37C6466CE

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

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

quasar

Version

1.4.1

Botnet

CleanerV2

C2

192.168.4.185:4782

Mutex

1607a026-352e-4041-bc1f-757dd6cd2e95

Attributes
  • encryption_key

    73BCD6A075C4505333DE1EDC77C7242196AF9552

  • install_name

    Client.exe

  • log_directory

    Clean

  • reconnect_delay

    3000

  • startup_key

    CleanerV2

  • subdirectory

    SubDir

Extracted

Family

stealerium

C2

https://api.telegram.org/bot6926474815:AAFx9tLAnf5OAVQZp2teS3G2_6T1wCP67xM/sendMessage?chat_id=-4224073938

Extracted

Family

quasar

Version

1.4.1

Botnet

SGVP

C2

192.168.1.9:4782

150.129.206.176:4782

Ai-Sgvp-33452.portmap.host:33452

Mutex

a35ec7b7-5a95-4207-8f25-7af0a7847fa5

Attributes
  • encryption_key

    09BBDA8FF0524296F02F8F81158F33C0AA74D487

  • install_name

    User Application Data.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windowns Client Startup

  • subdirectory

    Quasar

Extracted

Family

quasar

Version

1.4.1

Botnet

main-pc

C2

192.168.100.2:4444

Mutex

979e9520-ec25-48f6-8cd4-516d1007358f

Attributes
  • encryption_key

    6B74F0C858B7E90573D4E97997F2A082B9781250

  • install_name

    main-pc.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Microsoft Service

  • subdirectory

    SubDir

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

1.4.0

Botnet

Target

C2

127.0.0.1:6070

affasdqa.ddns.net:6070

haffasdqa.duckdns.org:6070

Mutex

670d21b7-71ed-4958-9ba7-a58fa54d8203

Attributes
  • encryption_key

    25B2622CE0635F9A273AB61B1B7D7B94220AC509

  • install_name

    svhoste.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhoste

  • subdirectory

    SubDir

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

redline

Botnet

testx

C2

193.203.238.86:1912

Targets

    • Target

      4363463463464363463463463.exe.zip

    • Size

      4KB

    • MD5

      16d34133af438a73419a49de605576d9

    • SHA1

      c3dbcd70359fdad8835091c714a7a275c59bd732

    • SHA256

      e4ec3a45621dd556deeea5f953fa05909c82630e9f17baf6b14272a0360d62d1

    • SHA512

      59c0272d6faa2682b7a6ce1cd414d53cc39f06035f4f38a2e206965805034bf8012b02d59f428973965136d70c89f87ac3b17b5db9c1b1d49844be182b47a3d7

    • SSDEEP

      96:xBf1inGx9SfZ+VCv3wlTDMQ1kyKXyyJNOBIKkNvL5qK+7zHf6MlYOQVPGmcEy:xBfwncSf8Cv3w9DZjKXjmBIKEvLs97D5

    • AsyncRat

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

    • Asyncrat family

    • Detect Vidar Stealer

    • Detect Xworm Payload

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Stealerium

      An open source info stealer written in C# first seen in May 2022.

    • Stealerium 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

    • Blocklisted process makes network request

    • 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

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • A potential corporate email address has been identified in the URL: [email protected]

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

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

    • Target

      4363463463464363463463463.exe

    • 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 Xworm Payload

    • 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

    • 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

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

    • XMRig Miner payload

    • Adds policy Run key to start application

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

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

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Stops running service(s)

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • 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