General

  • Target

    c0bc56175a3e98b5afcbacaf0105b23c7cb43799d7c8913ea68cb2181e963b64

  • Size

    1.8MB

  • Sample

    240525-vqsf1sbh98

  • MD5

    3ac66faefeb01b927f04a52b51662695

  • SHA1

    70f115a7aa3113bcdcb88f0733a5e5ab961ea1d7

  • SHA256

    c0bc56175a3e98b5afcbacaf0105b23c7cb43799d7c8913ea68cb2181e963b64

  • SHA512

    0de6d26b08d06a8a1284f8ee674c7eb3a7467c3700fad67697e5ef71c07700fa3cf577779cbcda0f481ae58320d198c168ac198d3d98bd646f1b334035458300

  • SSDEEP

    49152:nekySKb4aDxjL5fuzrerv14JK9HBSdcz3xOgItA:ek3wxnwzOqJGH0dcz3tx

Malware Config

Extracted

Family

amadey

Version

4.21

Botnet

0e6740

C2

http://147.45.47.155

Attributes
  • install_dir

    9217037dc9

  • install_file

    explortu.exe

  • strings_key

    8e894a8a4a3d0da8924003a561cfb244

  • url_paths

    /ku4Nor9/index.php

rc4.plain

Extracted

Family

amadey

Version

4.21

Botnet

49e482

C2

http://147.45.47.70

Attributes
  • install_dir

    1b29d73536

  • install_file

    axplont.exe

  • strings_key

    4d31dd1a190d9879c21fac6d87dc0043

  • url_paths

    /tr8nomy/index.php

rc4.plain

Extracted

Family

risepro

C2

147.45.47.126:58709

Extracted

Family

redline

Botnet

1

C2

185.215.113.67:40960

Extracted

Family

stealc

Botnet

zzvv

C2

http://23.88.106.134

Attributes
  • url_path

    /c73eed764cc59dcb.php

Targets

    • Target

      c0bc56175a3e98b5afcbacaf0105b23c7cb43799d7c8913ea68cb2181e963b64

    • Size

      1.8MB

    • MD5

      3ac66faefeb01b927f04a52b51662695

    • SHA1

      70f115a7aa3113bcdcb88f0733a5e5ab961ea1d7

    • SHA256

      c0bc56175a3e98b5afcbacaf0105b23c7cb43799d7c8913ea68cb2181e963b64

    • SHA512

      0de6d26b08d06a8a1284f8ee674c7eb3a7467c3700fad67697e5ef71c07700fa3cf577779cbcda0f481ae58320d198c168ac198d3d98bd646f1b334035458300

    • SSDEEP

      49152:nekySKb4aDxjL5fuzrerv14JK9HBSdcz3xOgItA:ek3wxnwzOqJGH0dcz3tx

    • Amadey

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

    • Detect Vidar Stealer

    • Exela Stealer

      Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.

    • 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.

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

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

    • 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

    • Modifies Windows Firewall

    • 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

    • 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

    • 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.

    • 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 NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

2
T1059

PowerShell

1
T1059.001

System Services

2
T1569

Service Execution

2
T1569.002

Scheduled Task/Job

1
T1053

Persistence

Account Manipulation

1
T1098

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

3
T1543

Windows Service

3
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

6
T1082

Process Discovery

1
T1057

Remote System Discovery

1
T1018

Collection

Data from Local System

5
T1005

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks