General

  • Target

    bb2f1d74aabd9d2a6eb16dd3cde55e5e.exe

  • Size

    1.8MB

  • Sample

    241217-knrrlavqd1

  • MD5

    bb2f1d74aabd9d2a6eb16dd3cde55e5e

  • SHA1

    2000c94f296473baa42444ea0fbd607a0f5cd19a

  • SHA256

    21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390

  • SHA512

    d82f1d4cbd8a229c80f896eac151b41af46292ca936c8673053d0c3bddefee62b31b8b614e042dc33ad83ef3935f99d7dcefb8509b5c378ea076ab58dba4da20

  • SSDEEP

    49152:7K/2FxcdjKcueMKUPCEIWadlDHzzq1O0oEprRWh7uC:7Kkc8ypdlDHKHoOWh7u

Malware Config

Extracted

Family

lumma

C2

https://sordid-snaked.cyou/api

https://awake-weaves.cyou/api

https://wrathful-jammy.cyou/api

https://debonairnukk.xyz/api

https://diffuculttan.xyz/api

https://effecterectz.xyz/api

https://deafeninggeh.biz/api

https://immureprech.biz/api

https://tacitglibbr.biz/api

Extracted

Family

stealc

Botnet

stok

C2

http://185.215.113.206

Attributes
  • url_path

    /c4becf79229cb002.php

Extracted

Family

lumma

C2

https://tacitglibbr.biz/api

Targets

    • Target

      bb2f1d74aabd9d2a6eb16dd3cde55e5e.exe

    • Size

      1.8MB

    • MD5

      bb2f1d74aabd9d2a6eb16dd3cde55e5e

    • SHA1

      2000c94f296473baa42444ea0fbd607a0f5cd19a

    • SHA256

      21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390

    • SHA512

      d82f1d4cbd8a229c80f896eac151b41af46292ca936c8673053d0c3bddefee62b31b8b614e042dc33ad83ef3935f99d7dcefb8509b5c378ea076ab58dba4da20

    • SSDEEP

      49152:7K/2FxcdjKcueMKUPCEIWadlDHzzq1O0oEprRWh7uC:7Kkc8ypdlDHKHoOWh7u

    • 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