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General

  • Target

    ffd3e08783983aa539d8056c4a45755a.exe

  • Size

    1.8MB

  • Sample

    241219-h55cxavpfr

  • MD5

    ffd3e08783983aa539d8056c4a45755a

  • SHA1

    35319d1dfd1accbf215edf312d26c62ffe44193b

  • SHA256

    f0a572023009f960fc10a93f127dd60641929b63a63f9c51c8a0c2e2aec6f5f0

  • SHA512

    079743895dbf994875f12309db2493e1a6365a92e76aea3e0494e2a99bedd3e93a14298a6cef1543ab00748d44aad36f41ffac841e0de72f48458a66c701f4af

  • SSDEEP

    24576:UrDQ6pmRyeSkPdHxifiRY0jMMPtGHrd2Fhn084JoXSZH0CHlle+Vq5W6v+XgzB06:6aQvkFHfYMftGHRQ5+QM0CFWvrz3sN

Malware Config

Extracted

Family

lumma

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Targets

    • Target

      ffd3e08783983aa539d8056c4a45755a.exe

    • Size

      1.8MB

    • MD5

      ffd3e08783983aa539d8056c4a45755a

    • SHA1

      35319d1dfd1accbf215edf312d26c62ffe44193b

    • SHA256

      f0a572023009f960fc10a93f127dd60641929b63a63f9c51c8a0c2e2aec6f5f0

    • SHA512

      079743895dbf994875f12309db2493e1a6365a92e76aea3e0494e2a99bedd3e93a14298a6cef1543ab00748d44aad36f41ffac841e0de72f48458a66c701f4af

    • SSDEEP

      24576:UrDQ6pmRyeSkPdHxifiRY0jMMPtGHrd2Fhn084JoXSZH0CHlle+Vq5W6v+XgzB06:6aQvkFHfYMftGHRQ5+QM0CFWvrz3sN

    • 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.

    • 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 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.

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks