Analysis

  • max time kernel
    96s
  • max time network
    143s
  • 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, 05:27

General

  • Target

    f77d07b9c49ce8361a05f50d39c3b2eefc02c9cf64200c80fdec8f445b7cac7d.exe

  • Size

    1.8MB

  • MD5

    4759820fde0c680644d332189bec83aa

  • SHA1

    57299ea1dac94f357b2ff19e36df44f8eb5b4a33

  • SHA256

    f77d07b9c49ce8361a05f50d39c3b2eefc02c9cf64200c80fdec8f445b7cac7d

  • SHA512

    156af54e601d1826e61407e03cd499344b17df99c0e6f57d928d2c748873556855deac4bbed1a319f5512e7456b399c5ffe089e0ba887ed62e432c9040767651

  • SSDEEP

    49152:oOaxlQZ6PXdx29IOHABzAmN1tnaodro4cxR2zV:7jZ6PXdx2FABMm4OrJ6R2z

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\f77d07b9c49ce8361a05f50d39c3b2eefc02c9cf64200c80fdec8f445b7cac7d.exe
    "C:\Users\Admin\AppData\Local\Temp\f77d07b9c49ce8361a05f50d39c3b2eefc02c9cf64200c80fdec8f445b7cac7d.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:2468
    • C:\Users\Admin\AppData\Local\Temp\FCWCFMP1FYZSR6PUJ61PM5MC4VRT8.exe
      "C:\Users\Admin\AppData\Local\Temp\FCWCFMP1FYZSR6PUJ61PM5MC4VRT8.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:3952
    • C:\Users\Admin\AppData\Local\Temp\I6D5I47TN9JY5DHRCFMPY3OE6PK8EW.exe
      "C:\Users\Admin\AppData\Local\Temp\I6D5I47TN9JY5DHRCFMPY3OE6PK8EW.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:4972

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\FCWCFMP1FYZSR6PUJ61PM5MC4VRT8.exe

          Filesize

          1.6MB

          MD5

          6215e9409cdfbf6956ee7a5a60f67248

          SHA1

          78c91bcefa5934699fa7e1b8152400f216aeccaa

          SHA256

          e64869fe84de387327fc30a4e97f1f0d4475dae71abe1f7d097e14c86337231d

          SHA512

          a5f8919a86682f52c69fdd8f25bae822a22cbfeb3dc8593361fa4d2d2fe3aff601c746d65572bbbe04c7589535d4cce6d0f2911a387d852ce4e55f02cd1d4f27

        • C:\Users\Admin\AppData\Local\Temp\I6D5I47TN9JY5DHRCFMPY3OE6PK8EW.exe

          Filesize

          2.8MB

          MD5

          367b6cf5ae840296a2e43e2d58a2f8cc

          SHA1

          5d6c9bc82479231d94457e1823ceb000afaeb8a0

          SHA256

          bb58c79e3bff569d2167f5c478e8bfeec422d0bc29fa84732e190472bb25bb77

          SHA512

          80d4378c27c7ccd9e8dbc524255bc8fcfe9c011d893cebc6816c15c6fd997ef856f795773b1eecf1d736853f9a7f840f679654569167b7b2defe00bd9cd11a06

        • memory/2468-16-0x0000000000230000-0x00000000006DD000-memory.dmp

          Filesize

          4.7MB

        • memory/2468-0-0x0000000000230000-0x00000000006DD000-memory.dmp

          Filesize

          4.7MB

        • memory/2468-4-0x0000000000230000-0x00000000006DD000-memory.dmp

          Filesize

          4.7MB

        • memory/2468-2-0x0000000000231000-0x0000000000256000-memory.dmp

          Filesize

          148KB

        • memory/2468-3-0x0000000000230000-0x00000000006DD000-memory.dmp

          Filesize

          4.7MB

        • memory/2468-15-0x0000000000230000-0x00000000006DD000-memory.dmp

          Filesize

          4.7MB

        • memory/2468-1-0x0000000077604000-0x0000000077606000-memory.dmp

          Filesize

          8KB

        • memory/3952-11-0x0000000000710000-0x0000000000B5A000-memory.dmp

          Filesize

          4.3MB

        • memory/3952-10-0x0000000000710000-0x0000000000B5A000-memory.dmp

          Filesize

          4.3MB

        • memory/3952-9-0x0000000000710000-0x0000000000B5A000-memory.dmp

          Filesize

          4.3MB

        • memory/3952-22-0x0000000000710000-0x0000000000B5A000-memory.dmp

          Filesize

          4.3MB

        • memory/3952-25-0x0000000000710000-0x0000000000B5A000-memory.dmp

          Filesize

          4.3MB

        • memory/4972-19-0x0000000000040000-0x0000000000549000-memory.dmp

          Filesize

          5.0MB

        • memory/4972-20-0x0000000000040000-0x0000000000549000-memory.dmp

          Filesize

          5.0MB