General

  • Target

    a53a554301475205830875c9f876f132.exe

  • Size

    1.8MB

  • Sample

    241101-zd8dxsverd

  • MD5

    a53a554301475205830875c9f876f132

  • SHA1

    4e7e89c4a4c251b755a0c6549e6385b9e0e21c86

  • SHA256

    03f7b84ec50050cb78882d7d568811f38fdf7586ecf528938d8653829c22cfc0

  • SHA512

    a1e0c21205bcb2a149efa95d43544f8dee2a52a3bccc6036f541cb3d183fd1fea9eacf482e1b862f22d5d4b0e624d1540cc6408682addeea4baae496ef1d481e

  • SSDEEP

    49152:zDuzXANA6q0ltRTdabE2nYGY+kNT1VeToBNe7dKKt:zSDd0lnTdaQeY7d1V3BNe7dKKt

Malware Config

Extracted

Family

amadey

Version

4.41

Botnet

fed3aa

C2

http://185.215.113.16

Attributes
  • install_dir

    44111dbc49

  • install_file

    axplong.exe

  • strings_key

    8d0ad6945b1a30a186ec2d30be6db0b5

  • url_paths

    /Jo89Ku7d/index.php

rc4.plain

Extracted

Family

stealc

Botnet

default_valenciga

C2

http://185.215.113.17

Attributes
  • url_path

    /2fb6c2cc8dce150a.php

Extracted

Family

stealc

Botnet

tale

C2

http://185.215.113.206

Attributes
  • url_path

    /6c4adf523b719729.php

Extracted

Family

amadey

Version

5.03

Botnet

7c4393

C2

http://185.215.113.217

Attributes
  • install_dir

    f9c76c1660

  • install_file

    corept.exe

  • strings_key

    9808a67f01d2f0720518035acbde7521

  • url_paths

    /CoreOPT/index.php

rc4.plain

Targets

    • Target

      a53a554301475205830875c9f876f132.exe

    • Size

      1.8MB

    • MD5

      a53a554301475205830875c9f876f132

    • SHA1

      4e7e89c4a4c251b755a0c6549e6385b9e0e21c86

    • SHA256

      03f7b84ec50050cb78882d7d568811f38fdf7586ecf528938d8653829c22cfc0

    • SHA512

      a1e0c21205bcb2a149efa95d43544f8dee2a52a3bccc6036f541cb3d183fd1fea9eacf482e1b862f22d5d4b0e624d1540cc6408682addeea4baae496ef1d481e

    • SSDEEP

      49152:zDuzXANA6q0ltRTdabE2nYGY+kNT1VeToBNe7dKKt:zSDd0lnTdaQeY7d1V3BNe7dKKt

    • Amadey

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

    • Amadey family

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

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

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • 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.

    • Drops startup file

    • 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.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates processes with tasklist

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks