General

  • Target

    amert.exe

  • Size

    1.8MB

  • Sample

    240327-3jjjjadd58

  • MD5

    b8b5138dc6f97136cfebece16f80203d

  • SHA1

    e020d3ac6d101791801e8ce8c921a5f54f78abf5

  • SHA256

    7d1e736b876ad9f4effc5736323bbb1db9d53b49abda5a13d238cbe5f56e136c

  • SHA512

    f26e295c0845b57520ee8392761c532527ca41974f68f189bb37637b45455edceb098ca23d2952e495635719a8da8a39d86d880467bc6ad79071afd870dd9877

  • SSDEEP

    49152:6Bb/umIpUjoMJSb1MFkc5eCohVvb+22WBtsDSHLjgAgtZ:6B/zI3RW6c+hVJ2OymwjZ

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Extracted

Family

redline

Botnet

LiveTraffic

C2

4.185.137.132:1632

Extracted

Family

redline

Botnet

@OLEH_PSP

C2

185.172.128.33:8970

Extracted

Family

amadey

Version

4.18

C2

http://193.233.132.56

Attributes
  • install_dir

    09fd851a4f

  • install_file

    explorha.exe

  • strings_key

    443351145ece4966ded809641c77cfa8

  • url_paths

    /Pneh2sXQk0/index.php

rc4.plain

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php

rc4.i32
rc4.i32

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Extracted

Family

lumma

C2

https://resergvearyinitiani.shop/api

https://affordcharmcropwo.shop/api

https://cleartotalfisherwo.shop/api

https://worryfillvolcawoi.shop/api

https://enthusiasimtitleow.shop/api

https://dismissalcylinderhostw.shop/api

https://diskretainvigorousiw.shop/api

https://communicationgenerwo.shop/api

https://pillowbrocccolipe.shop/api

Targets

    • Target

      amert.exe

    • Size

      1.8MB

    • MD5

      b8b5138dc6f97136cfebece16f80203d

    • SHA1

      e020d3ac6d101791801e8ce8c921a5f54f78abf5

    • SHA256

      7d1e736b876ad9f4effc5736323bbb1db9d53b49abda5a13d238cbe5f56e136c

    • SHA512

      f26e295c0845b57520ee8392761c532527ca41974f68f189bb37637b45455edceb098ca23d2952e495635719a8da8a39d86d880467bc6ad79071afd870dd9877

    • SSDEEP

      49152:6Bb/umIpUjoMJSb1MFkc5eCohVvb+22WBtsDSHLjgAgtZ:6B/zI3RW6c+hVJ2OymwjZ

    • Amadey

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

    • DcRat

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

    • Detect ZGRat V1

    • Detected google phishing page

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Glupteba

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

    • Glupteba payload

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • RedLine

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

    • RedLine payload

    • RisePro

      RisePro stealer is an infostealer distributed by PrivateLoader.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Stealc

      Stealc is an infostealer written in C++.

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Modifies Windows Firewall

    • 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.

    • Deletes itself

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Modifies file permissions

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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 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.

    • 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.

    • Manipulates WinMonFS driver.

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

    • Mark of the Web detected: This indicates that the page was originally saved or cloned.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks