General

  • Target

    J4MRV_file.exe

  • Size

    3.1MB

  • Sample

    241208-eq1jmasjet

  • MD5

    a53f5d5154f5288b4d1de1fdb4c45bd0

  • SHA1

    837db70e1305bdb05b66b29e8640dde6d074e07a

  • SHA256

    7038c664f9dc56254763fa7bbd9b8819afaff44193f5b594cb611281d813e689

  • SHA512

    c4e54c057f15f1012b587d80c0a4549a5e915947e0737f57936d0088d3b67ab07b42e719285af64376c3f33e9566ae643a0eef536bdfadb0a61e4cb2b7c3c534

  • SSDEEP

    49152:AnLLPvf5TsT8tixkT4s5IqZzjQkUn2Gf5P0cOTleiV1P:cPvf5TsT8kxkEs5IqZ38DBP0/D3

Malware Config

Extracted

Family

amadey

Version

4.42

Botnet

9c9aa5

C2

http://185.215.113.43

Attributes
  • install_dir

    abc3bc1985

  • install_file

    skotes.exe

  • strings_key

    8a35cf2ea38c2817dba29a4b5b25dcf0

  • url_paths

    /Zu7JuNko/index.php

rc4.plain

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://impend-differ.biz/api

https://print-vexer.biz/api

https://dare-curbys.biz/api

https://covery-mover.biz/api

https://formy-spill.biz/api

https://dwell-exclaim.biz/api

https://zinc-sneark.biz/api

https://se-blurry.biz/api

https://atten-supporse.biz/api

Extracted

Family

lumma

C2

https://atten-supporse.biz/api

https://se-blurry.biz/api

https://zinc-sneark.biz/api

Targets

    • Target

      J4MRV_file.exe

    • Size

      3.1MB

    • MD5

      a53f5d5154f5288b4d1de1fdb4c45bd0

    • SHA1

      837db70e1305bdb05b66b29e8640dde6d074e07a

    • SHA256

      7038c664f9dc56254763fa7bbd9b8819afaff44193f5b594cb611281d813e689

    • SHA512

      c4e54c057f15f1012b587d80c0a4549a5e915947e0737f57936d0088d3b67ab07b42e719285af64376c3f33e9566ae643a0eef536bdfadb0a61e4cb2b7c3c534

    • SSDEEP

      49152:AnLLPvf5TsT8tixkT4s5IqZzjQkUn2Gf5P0cOTleiV1P:cPvf5TsT8kxkEs5IqZ38DBP0/D3

    • Amadey

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

    • Amadey family

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

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

    • Downloads MZ/PE file

    • 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

    • Windows security modification

    • Adds Run key to start application

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks