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General

  • Target

    random.exe

  • Size

    2.0MB

  • Sample

    250322-p25ylasydx

  • MD5

    453e433ce707a2dff379af17e1a7fe44

  • SHA1

    c95d4c253627be7f36630f5e933212818de19ed7

  • SHA256

    ab8b903ee062c93347eb738d00d0dbf707cdbbb8d26cf4dac7691ccbf8a8aff2

  • SHA512

    9aa5b06bf01017aa13fd57350ba627cc892246e55e5adf8d785ff8a2252da7cbc28cf5e5e4170d877e4be01538a230646cfc581873acf183f0485c66e6397fd4

  • SSDEEP

    49152:r3NOfcJRt0nsMQ8Yry0GO0WqMQvELO6fKM3O:TNt0nsR8Ud7p1O

Malware Config

Extracted

Family

amadey

Version

5.21

Botnet

092155

C2

http://176.113.115.6

Attributes
  • install_dir

    bb556cff4a

  • install_file

    rapes.exe

  • strings_key

    a131b127e996a898cd19ffb2d92e481b

  • url_paths

    /Ni9kiput/index.php

rc4.plain

Extracted

Family

skuld

C2

https://discordapp.com/api/webhooks/1349647136895012916/qSys_fpsL_y7usKH_AyrFupSjzSsVfg2t895g2HV8Yz72asrwCIsHaqqhPtDFjz8g8_E

Extracted

Family

amadey

Version

5.33

Botnet

06bcb9

C2

http://195.82.146.131

Attributes
  • install_dir

    06a5c50e21

  • install_file

    tgvazx.exe

  • strings_key

    1861b156ffe931ec912bb17b5ff77a36

  • url_paths

    /h8ejjcsDs/index.php

rc4.plain

Targets

    • Target

      random.exe

    • Size

      2.0MB

    • MD5

      453e433ce707a2dff379af17e1a7fe44

    • SHA1

      c95d4c253627be7f36630f5e933212818de19ed7

    • SHA256

      ab8b903ee062c93347eb738d00d0dbf707cdbbb8d26cf4dac7691ccbf8a8aff2

    • SHA512

      9aa5b06bf01017aa13fd57350ba627cc892246e55e5adf8d785ff8a2252da7cbc28cf5e5e4170d877e4be01538a230646cfc581873acf183f0485c66e6397fd4

    • SSDEEP

      49152:r3NOfcJRt0nsMQ8Yry0GO0WqMQvELO6fKM3O:TNt0nsR8Ud7p1O

    • Amadey

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

    • Amadey family

    • Skuld family

    • Skuld stealer

      An info stealer written in Go lang.

    • 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.

    • Downloads MZ/PE file

    • Sets service image path in registry

    • 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.

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Adds Run key to start application

    • Enumerates processes with tasklist

    • 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