General

  • Target

    0bf89046f8ef74480d449017d25fe05f6d95ba6aae694ddf5a6744a60e24b9d8.exe

  • Size

    1.8MB

  • Sample

    241217-cjxs2sxjgw

  • MD5

    e0c73ad4f87c8b93382d43c238a6f47e

  • SHA1

    945c66a59cff25ce61be82fe4d5b1579a04a5936

  • SHA256

    0bf89046f8ef74480d449017d25fe05f6d95ba6aae694ddf5a6744a60e24b9d8

  • SHA512

    a57be1d38113bbf68e7c5e20c51ec76e791601db7e0f3626bc8da48c68bb7d12157499d9c22eb8a0b26c174363361e440e7109d2d71eaa8c6a6fff853e661dc5

  • SSDEEP

    49152:9YEgH41tdNb4DaI/jkn0e4/xig7Hb7+4HeWhmJHR:jvkkn0eUxig7Hv+5WO

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

      0bf89046f8ef74480d449017d25fe05f6d95ba6aae694ddf5a6744a60e24b9d8.exe

    • Size

      1.8MB

    • MD5

      e0c73ad4f87c8b93382d43c238a6f47e

    • SHA1

      945c66a59cff25ce61be82fe4d5b1579a04a5936

    • SHA256

      0bf89046f8ef74480d449017d25fe05f6d95ba6aae694ddf5a6744a60e24b9d8

    • SHA512

      a57be1d38113bbf68e7c5e20c51ec76e791601db7e0f3626bc8da48c68bb7d12157499d9c22eb8a0b26c174363361e440e7109d2d71eaa8c6a6fff853e661dc5

    • SSDEEP

      49152:9YEgH41tdNb4DaI/jkn0e4/xig7Hb7+4HeWhmJHR:jvkkn0eUxig7Hv+5WO

    • 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