Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 08:54

General

  • Target

    1d13d83ba0b9e54307060da3ad2c16bf.exe

  • Size

    1.8MB

  • MD5

    1d13d83ba0b9e54307060da3ad2c16bf

  • SHA1

    45fe957170c36b1704c25ff65d59dd8bbe6894cd

  • SHA256

    cce6c6f51a01ff3662b263cd464e41b163db9590453603e2c8b5dee39d5f94d0

  • SHA512

    803e1b9587fc7aab36c96d52fe901fa6dbe0523aa46da23afb0bd50f7ebcbe5bfd9793ac61cbdd4d228159786d240d5161ff80a5e445eaa00fc77cdf455eb526

  • SSDEEP

    24576:ujGFRFajDFCy++ZmOo3Ku3nMTpvvVxgjvS0CrhHnDvutPCisiQR5gCdcd3:ujeFmD/+Go3Ku3evVxquNrmPCwu

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\1d13d83ba0b9e54307060da3ad2c16bf.exe
    "C:\Users\Admin\AppData\Local\Temp\1d13d83ba0b9e54307060da3ad2c16bf.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:4480
    • C:\Users\Admin\AppData\Local\Temp\3GVQGL5OOXUN32X4PIJ8V6LA60GO.exe
      "C:\Users\Admin\AppData\Local\Temp\3GVQGL5OOXUN32X4PIJ8V6LA60GO.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:208
    • C:\Users\Admin\AppData\Local\Temp\OEAL1YD7SB4X5X3T.exe
      "C:\Users\Admin\AppData\Local\Temp\OEAL1YD7SB4X5X3T.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:1924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3GVQGL5OOXUN32X4PIJ8V6LA60GO.exe

    Filesize

    2.7MB

    MD5

    f0a01acbb7c142ecdb64c66fe7e5da72

    SHA1

    bd76e25d19deca688e85a0c2afefebfbd2ed5708

    SHA256

    91ea2a284a8ee25b4ad74669df7d2f5362f8e88b45c5ad0471b8fff15b1cea7f

    SHA512

    fad5447153b4c9e95f787861dc41280b6192a71d7612772a5f4d579d7629cd2294e08b6274bba1a0c7184b1db8221a949264cd3353ee0ef40d2e7d227deafe4b

  • C:\Users\Admin\AppData\Local\Temp\OEAL1YD7SB4X5X3T.exe

    Filesize

    1.7MB

    MD5

    3aacd7d2751e6e0f434b9809f58b92bc

    SHA1

    a398a3b7487129b2f2bd94136da6ca36e91d7505

    SHA256

    2abc9291898edaa673b4754a60c0154084112532a7f76c36fee1e97cec5685ab

    SHA512

    56ae68afbd59926feb21f6ff2662e3c26f461c9e7a52b26add2d8bdeda7b381ce6fde1ef787310aab666ab84a27e884810efb56ac65968c1d71fceb963516cf3

  • memory/208-19-0x00000000003B0000-0x0000000000664000-memory.dmp

    Filesize

    2.7MB

  • memory/208-26-0x00000000003B0000-0x0000000000664000-memory.dmp

    Filesize

    2.7MB

  • memory/208-23-0x00000000003B0000-0x0000000000664000-memory.dmp

    Filesize

    2.7MB

  • memory/208-20-0x00000000003B0000-0x0000000000664000-memory.dmp

    Filesize

    2.7MB

  • memory/208-11-0x00000000003B0000-0x0000000000664000-memory.dmp

    Filesize

    2.7MB

  • memory/1924-16-0x0000000000DA0000-0x000000000142E000-memory.dmp

    Filesize

    6.6MB

  • memory/1924-21-0x0000000000DA0000-0x000000000142E000-memory.dmp

    Filesize

    6.6MB

  • memory/4480-1-0x00000000779B4000-0x00000000779B6000-memory.dmp

    Filesize

    8KB

  • memory/4480-18-0x0000000000F00000-0x000000000139B000-memory.dmp

    Filesize

    4.6MB

  • memory/4480-3-0x0000000000F00000-0x000000000139B000-memory.dmp

    Filesize

    4.6MB

  • memory/4480-0-0x0000000000F00000-0x000000000139B000-memory.dmp

    Filesize

    4.6MB

  • memory/4480-2-0x0000000000F01000-0x0000000000F26000-memory.dmp

    Filesize

    148KB

  • memory/4480-6-0x0000000000F00000-0x000000000139B000-memory.dmp

    Filesize

    4.6MB

  • memory/4480-5-0x0000000000F00000-0x000000000139B000-memory.dmp

    Filesize

    4.6MB

  • memory/4480-4-0x0000000000F00000-0x000000000139B000-memory.dmp

    Filesize

    4.6MB