General

  • Target

    b6046ae1bd10e5aa4bb9280b48cd846482d5122de8bbe54998800e734bddd7f7.exe

  • Size

    1.8MB

  • Sample

    241217-ezryvazqf1

  • MD5

    42b62e1e747b64a54a3f6896df2128d5

  • SHA1

    4b0d19351ed7eb44908eae3020b8298ed221d100

  • SHA256

    b6046ae1bd10e5aa4bb9280b48cd846482d5122de8bbe54998800e734bddd7f7

  • SHA512

    dca1b52076478cb15bded75a98ea7d689e548d87c1117c33bf303750b6495d396deb9de30711fc1eabfa0e47af20460c0bc1c15b2c85b683401c40c7e101e229

  • SSDEEP

    49152:CtR8X2NBoIch/r5dAYs8fbx6XBM15lyMUqPd/R:CTWYc/w4xExExR

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

      b6046ae1bd10e5aa4bb9280b48cd846482d5122de8bbe54998800e734bddd7f7.exe

    • Size

      1.8MB

    • MD5

      42b62e1e747b64a54a3f6896df2128d5

    • SHA1

      4b0d19351ed7eb44908eae3020b8298ed221d100

    • SHA256

      b6046ae1bd10e5aa4bb9280b48cd846482d5122de8bbe54998800e734bddd7f7

    • SHA512

      dca1b52076478cb15bded75a98ea7d689e548d87c1117c33bf303750b6495d396deb9de30711fc1eabfa0e47af20460c0bc1c15b2c85b683401c40c7e101e229

    • SSDEEP

      49152:CtR8X2NBoIch/r5dAYs8fbx6XBM15lyMUqPd/R:CTWYc/w4xExExR

    • 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