General

  • Target

    file

  • Size

    1.5MB

  • Sample

    231023-tw9f2sac7t

  • MD5

    ce40fcc1f95b0c6d4f7a21c08d49a17c

  • SHA1

    703099eee297196e642eba4781f9542ba8fbfed8

  • SHA256

    3dddb80ed9de80b4d7c31ecd952500294af3f235a6a0c52a5adfcb35a07a8a7a

  • SHA512

    968632c5d9f97024d2ae63bd9794d351ad1d5a43ba5da392c01e6c7a7a035a2e4e9d1ceb084baf108b2bb39bd1d2d410fd0dbcc5ed5c26afe3bc847b3042c9be

  • SSDEEP

    49152:ncNhZC2U+qtQFaQmk+YP4RHugqtrW+P2Zf:AC2URaas+YP4RHdqtrv2Z

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

http://yvzgz.cyou/index.php

https://yvzgz.cyou/index.php

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

grome

C2

77.91.124.86:19084

Extracted

Family

amadey

Version

3.89

C2

http://77.91.124.1/theme/index.php

Attributes
  • install_dir

    fefffe8cea

  • install_file

    explothe.exe

  • strings_key

    36a96139c1118a354edf72b1080d4b2f

rc4.plain

Extracted

Family

redline

Botnet

kinza

C2

77.91.124.86:19084

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

redline

Botnet

YT&TEAM CLOUD

C2

185.216.70.238:37515

Extracted

Family

smokeloader

Version

2020

C2

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

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

rc4.i32
rc4.i32

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

89.23.100.93:4449

Mutex

oonrejgwedvxwse

Attributes
  • delay

    1

  • install

    true

  • install_file

    calc.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      file

    • Size

      1.5MB

    • MD5

      ce40fcc1f95b0c6d4f7a21c08d49a17c

    • SHA1

      703099eee297196e642eba4781f9542ba8fbfed8

    • SHA256

      3dddb80ed9de80b4d7c31ecd952500294af3f235a6a0c52a5adfcb35a07a8a7a

    • SHA512

      968632c5d9f97024d2ae63bd9794d351ad1d5a43ba5da392c01e6c7a7a035a2e4e9d1ceb084baf108b2bb39bd1d2d410fd0dbcc5ed5c26afe3bc847b3042c9be

    • SSDEEP

      49152:ncNhZC2U+qtQFaQmk+YP4RHugqtrW+P2Zf:AC2URaas+YP4RHdqtrv2Z

    • 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.

    • Detected google phishing page

    • Glupteba

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

    • Glupteba payload

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

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

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Async RAT payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Windows security modification

    • 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

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks