Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 04:21

General

  • Target

    b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe

  • Size

    1.7MB

  • MD5

    d8c2dbe1dc35a7cdac6842d48fecb333

  • SHA1

    e2c05c1cd61c9085f23f1462acdc10444c52dc0a

  • SHA256

    b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219

  • SHA512

    b90e0dbc88945aa4c75cfe4c9b6b8e9046a363eaca6797a8fe44b27e9c9224e06b1380465cb61439256f64fce05f8d5006bb932101b3d42970cb5db6a0ae5dc7

  • SSDEEP

    49152:KVGfuwDAsjKlaPIfyJsEQgRT4+Agta6x:IGfj9PIyWEfRTUw

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

Signatures

  • 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 3 TTPs 6 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 6 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 2 IoCs
  • Identifies Wine through registry keys 2 TTPs 3 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 2 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe
    "C:\Users\Admin\AppData\Local\Temp\b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Users\Admin\AppData\Local\Temp\TG7TCAJ3LVXWA8JF1LS.exe
      "C:\Users\Admin\AppData\Local\Temp\TG7TCAJ3LVXWA8JF1LS.exe"
      2⤵
      • Modifies Windows Defender Real-time Protection settings
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Windows security modification
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1808
    • C:\Users\Admin\AppData\Local\Temp\R5FWT2RTDM58RLJ6PS4D9TP.exe
      "C:\Users\Admin\AppData\Local\Temp\R5FWT2RTDM58RLJ6PS4D9TP.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\R5FWT2RTDM58RLJ6PS4D9TP.exe

    Filesize

    2.8MB

    MD5

    7d8e297d9b2cdcb4bfc19cb761f0abf8

    SHA1

    7c41c6737ebc85cee2b5f61fdc515606356ed262

    SHA256

    8a988b1b507d489e9627de9f397353e9713e8bdd8125686d3fbcba852ca77bf6

    SHA512

    e937f013c613a5b5ad6df0ceb78b97711328c767bb353ecdc61f29e72e64bced3dde757c5a77ae1516d902e5099f10c9b2455381610f4827d52c2b44e6d4fd41

  • C:\Users\Admin\AppData\Local\Temp\TG7TCAJ3LVXWA8JF1LS.exe

    Filesize

    1.7MB

    MD5

    2bd7be5558ce4203112063f6b2c45454

    SHA1

    c0aa5acecc953e6cab2482b12c9e31ee9ce2804c

    SHA256

    be4d98eb32b36999f88fa786b3ee8d77abf2177421c04984c27e16aa8153e4aa

    SHA512

    69e472d56b45a8ce6df10725f80e20738327a4d9037894e8da910747081ce9496e5c4c59cf23a128088cea1c62a514ddf457680854a37cdcf27c22eeffe546f2

  • memory/1808-24-0x00000000005C0000-0x0000000000A40000-memory.dmp

    Filesize

    4.5MB

  • memory/1808-20-0x00000000005C0000-0x0000000000A40000-memory.dmp

    Filesize

    4.5MB

  • memory/1808-18-0x00000000005C0000-0x0000000000A40000-memory.dmp

    Filesize

    4.5MB

  • memory/1808-17-0x00000000005C0000-0x0000000000A40000-memory.dmp

    Filesize

    4.5MB

  • memory/1808-9-0x00000000005C0000-0x0000000000A40000-memory.dmp

    Filesize

    4.5MB

  • memory/2932-3-0x0000000000040000-0x00000000004C8000-memory.dmp

    Filesize

    4.5MB

  • memory/2932-14-0x0000000000040000-0x00000000004C8000-memory.dmp

    Filesize

    4.5MB

  • memory/2932-4-0x0000000000040000-0x00000000004C8000-memory.dmp

    Filesize

    4.5MB

  • memory/2932-0-0x0000000000040000-0x00000000004C8000-memory.dmp

    Filesize

    4.5MB

  • memory/2932-2-0x0000000000041000-0x0000000000066000-memory.dmp

    Filesize

    148KB

  • memory/2932-1-0x0000000077874000-0x0000000077876000-memory.dmp

    Filesize

    8KB

  • memory/4108-16-0x0000000000550000-0x0000000000A4F000-memory.dmp

    Filesize

    5.0MB

  • memory/4108-19-0x0000000000550000-0x0000000000A4F000-memory.dmp

    Filesize

    5.0MB