Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-12-2024 02:31

General

  • Target

    3c6116a035069356a08c478ec90a8be22a0ba2e8c749dd4d33f7cad2a3ee86ac.exe

  • Size

    1.8MB

  • MD5

    bfc8fbb265274e407ebb9b2be9b6630f

  • SHA1

    0aee8ad1ee7bc01cb6994f8de0b714a2ad3a64c2

  • SHA256

    3c6116a035069356a08c478ec90a8be22a0ba2e8c749dd4d33f7cad2a3ee86ac

  • SHA512

    e3862fc31f091ba641d8262e0ce0fca53482ed4870a206b1763ae81e9a7ebe507634d531e0a955c7dbfa67f17c546ad5215dadc91fbbc787673575938b8777a0

  • SSDEEP

    49152:2doxdBUtSkPt5A+cjDLeNETVM8xFVJ1x2c9LJ:2CTBUtSEA7jDCNEa8/VJ3X

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.

  • Loads dropped DLL 3 IoCs
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c6116a035069356a08c478ec90a8be22a0ba2e8c749dd4d33f7cad2a3ee86ac.exe
    "C:\Users\Admin\AppData\Local\Temp\3c6116a035069356a08c478ec90a8be22a0ba2e8c749dd4d33f7cad2a3ee86ac.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Users\Admin\AppData\Local\Temp\HLJHFAD8LWS193E45PBWZ47QZV.exe
      "C:\Users\Admin\AppData\Local\Temp\HLJHFAD8LWS193E45PBWZ47QZV.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:2404
    • C:\Users\Admin\AppData\Local\Temp\LTE1X96RTC1J3VB9C3JVM9F.exe
      "C:\Users\Admin\AppData\Local\Temp\LTE1X96RTC1J3VB9C3JVM9F.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:3008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\HLJHFAD8LWS193E45PBWZ47QZV.exe

    Filesize

    1.6MB

    MD5

    a78f80e6511f7c2763128897866f9c9d

    SHA1

    dfce44230a08bf7bc983dbca64d0630cbc6ff9ca

    SHA256

    6066b498bce43d72cdc0a3a3850001653a74fb3c5d5b92377e9f2798e6e15257

    SHA512

    bbcfc834836306282d85831d5192ba09f8db55d94e2b7f167971b0530d156626b1c6f7c90c1a4dc2863870ed9064a18987b22f6b23f737f6575e5a1f7a34e7e6

  • \Users\Admin\AppData\Local\Temp\LTE1X96RTC1J3VB9C3JVM9F.exe

    Filesize

    2.7MB

    MD5

    1eb268dfe52d4541037838207c51d19f

    SHA1

    35264d064730fa9d7d4b53183a5fb9e97912a8a7

    SHA256

    bfa216d2edc6a8b5230cf4d89231f3ee36decad422a7b8b8565fa232dc3bf89b

    SHA512

    ed2e878a5cf58e0ec74d3bf8b20a35531cc7dea31a590737f40a6fef1aea8f7903d592fb25a870482110f10d225051e8724bcb57a9d3aca388c8bde5f0fa6146

  • memory/2016-13-0x0000000006630000-0x0000000006A76000-memory.dmp

    Filesize

    4.3MB

  • memory/2016-1-0x00000000779B0000-0x00000000779B2000-memory.dmp

    Filesize

    8KB

  • memory/2016-4-0x0000000000BF0000-0x000000000108D000-memory.dmp

    Filesize

    4.6MB

  • memory/2016-5-0x0000000000BF0000-0x000000000108D000-memory.dmp

    Filesize

    4.6MB

  • memory/2016-2-0x0000000000BF1000-0x0000000000C16000-memory.dmp

    Filesize

    148KB

  • memory/2016-25-0x0000000000BF0000-0x000000000108D000-memory.dmp

    Filesize

    4.6MB

  • memory/2016-15-0x0000000006630000-0x0000000006A76000-memory.dmp

    Filesize

    4.3MB

  • memory/2016-14-0x0000000000BF0000-0x000000000108D000-memory.dmp

    Filesize

    4.6MB

  • memory/2016-0-0x0000000000BF0000-0x000000000108D000-memory.dmp

    Filesize

    4.6MB

  • memory/2016-3-0x0000000000BF0000-0x000000000108D000-memory.dmp

    Filesize

    4.6MB

  • memory/2016-26-0x0000000006630000-0x0000000006B23000-memory.dmp

    Filesize

    4.9MB

  • memory/2404-18-0x0000000000AF0000-0x0000000000F36000-memory.dmp

    Filesize

    4.3MB

  • memory/2404-19-0x0000000000AF0000-0x0000000000F36000-memory.dmp

    Filesize

    4.3MB

  • memory/2404-17-0x0000000000AF0000-0x0000000000F36000-memory.dmp

    Filesize

    4.3MB

  • memory/2404-30-0x0000000000AF0000-0x0000000000F36000-memory.dmp

    Filesize

    4.3MB

  • memory/2404-33-0x0000000000AF0000-0x0000000000F36000-memory.dmp

    Filesize

    4.3MB

  • memory/3008-28-0x0000000001240000-0x0000000001733000-memory.dmp

    Filesize

    4.9MB

  • memory/3008-29-0x0000000001240000-0x0000000001733000-memory.dmp

    Filesize

    4.9MB