Resubmissions

11-11-2023 08:23

231111-j96bfacf5s 10

08-11-2023 14:52

231108-r8x8facc5z 10

27-10-2023 03:52

231027-ee6lhabh8x 10

27-10-2023 03:51

231027-ee1p9abh8s 10

25-10-2023 10:35

231025-mm3htagf6y 10

23-10-2023 09:11

231023-k5l8fahc84 10

21-10-2023 11:53

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21-10-2023 11:26

231021-njywwsfg64 10

20-10-2023 21:27

231020-1a8qysbe9t 10

General

  • Target

    a.exe

  • Size

    5KB

  • Sample

    231020-1a8qysbe9t

  • MD5

    800a6337b0b38274efe64875d15f70c5

  • SHA1

    6b0858c5f9a2e2b5980aac05749e3d6664a60870

  • SHA256

    76a7490d3f1b0685f60a417d1c9cf96927b473825a914221f092f82ea112b571

  • SHA512

    bf337140044a4674d69f7a2db30389e248593a99826c8731bc0a5ac71e46819eb539d8c7cbeab48108310359f5604e02e3bd64f17d9fdd380b574f329543645e

  • SSDEEP

    48:6O/tGt28lK9iqmcfaFXfkeLJhyPFlWa8tYb/INV/cpwOulavTqXSfbNtm:j/IUiqtaJkeqDUt5xcpmsvNzNt

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Extracted

Family

smokeloader

Version

2022

C2

http://onualituyrs.org/

http://sumagulituyo.org/

http://snukerukeutit.org/

http://lightseinsteniki.org/

http://liuliuoumumy.org/

http://stualialuyastrelia.net/

http://kumbuyartyty.net/

http://criogetikfenbut.org/

http://tonimiuyaytre.org/

http://tyiuiunuewqy.org/

rc4.i32
rc4.i32

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    cp5ua.hyperhost.ua
  • Port:
    587
  • Username:
    arinzelog@saonline.xyz
  • Password:
    7213575aceACE@#$

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mymobileorder.com
  • Port:
    587
  • Username:
    money@mymobileorder.com
  • Password:
    Grace@2023@121

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mymobileorder.com
  • Port:
    587
  • Username:
    grace@mymobileorder.com
  • Password:
    Grace@20233

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.1

Botnet

Default

C2

127.0.0.1:4449

20.211.121.138:4449

Mutex

udbyxlklndgyt

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

vidar

Version

6.1

Botnet

f02b730f81476e82205d9d2eb21e0ef8

C2

https://steamcommunity.com/profiles/76561199563297648

https://t.me/twowheelfun

Attributes
  • profile_id_v2

    f02b730f81476e82205d9d2eb21e0ef8

  • user_agent

    Mozilla/5.0 (iPad; CPU OS 17_0_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Mobile/15E148 Safari/605.1.15

Extracted

Family

amadey

Version

3.89

C2

http://193.42.32.29/9bDc8sQ/index.php

Attributes
  • install_dir

    1ff8bec27e

  • install_file

    nhdues.exe

  • strings_key

    2efe1b48925e9abf268903d42284c46b

rc4.plain

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Independence

C2

ascoitaliasasummer.duckdns.org:3030

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    Windows Sessions Start.exe

  • copy_folder

    Microsoft Media Session

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Windows Display

  • keylog_path

    %WinDir%

  • mouse_option

    false

  • mutex

    Windows Audio

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    Windows Sounds EndPoints

  • take_screenshot_option

    true

  • take_screenshot_time

    5

  • take_screenshot_title

    Username;password;proforma;invoice;notepad

Targets

    • Target

      a.exe

    • Size

      5KB

    • MD5

      800a6337b0b38274efe64875d15f70c5

    • SHA1

      6b0858c5f9a2e2b5980aac05749e3d6664a60870

    • SHA256

      76a7490d3f1b0685f60a417d1c9cf96927b473825a914221f092f82ea112b571

    • SHA512

      bf337140044a4674d69f7a2db30389e248593a99826c8731bc0a5ac71e46819eb539d8c7cbeab48108310359f5604e02e3bd64f17d9fdd380b574f329543645e

    • SSDEEP

      48:6O/tGt28lK9iqmcfaFXfkeLJhyPFlWa8tYb/INV/cpwOulavTqXSfbNtm:j/IUiqtaJkeqDUt5xcpmsvNzNt

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • AsyncRat

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

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Formbook

      Formbook is a data stealing malware which is capable of stealing data.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Lokibot

      Lokibot is a Password and CryptoCoin Wallet Stealer.

    • Modifies Windows Defender Real-time Protection settings

    • NanoCore

      NanoCore is a remote access tool (RAT) with a variety of capabilities.

    • PrivateLoader

      PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    • RedLine

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

    • RedLine payload

    • Remcos

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

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • XMRig Miner payload

    • 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)

    • Renames multiple (244) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Adds policy Run key to start application

    • Blocklisted process makes network request

    • Contacts a large (1300) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Stops running service(s)

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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.

    • UPX packed file

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

    • Unexpected DNS network traffic destination

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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Windows security modification

    • Accesses 2FA software files, possible credential harvesting

    • Accesses Microsoft Outlook profiles

    • 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.

    • Checks whether UAC is enabled

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • Drops Chrome extension

    • Drops desktop.ini file(s)

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

7
T1112

Impair Defenses

3
T1562

Disable or Modify Tools

2
T1562.001

Virtualization/Sandbox Evasion

1
T1497

File and Directory Permissions Modification

1
T1222

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

5
T1552

Credentials In Files

5
T1552.001

Discovery

Query Registry

9
T1012

Virtualization/Sandbox Evasion

1
T1497

Network Service Discovery

2
T1046

System Information Discovery

8
T1082

Peripheral Device Discovery

2
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

5
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks