Analysis

  • max time kernel
    94s
  • 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
    17-12-2024 02:34

General

  • Target

    41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe

  • Size

    1.7MB

  • MD5

    92c6b7aa6070e9f99b8c4f896b577578

  • SHA1

    a651bb1684cc879c331fe8a42e9d07ad389853ca

  • SHA256

    41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24

  • SHA512

    dec9c2af0b500f705f2e6cb07c5b7fe0fd19df98ff72dba204d762480fe020bf62875491f6129811bc6e4dc6902fcf5b88fab19a21edcd3f15de5b555f7dc3e3

  • SSDEEP

    49152:glsFh0DpF5ScZFGi2Jd3S2D9PPJYrwvasUcDXIpD:gKEpTYz3/pvasAJ

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\41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.exe
    "C:\Users\Admin\AppData\Local\Temp\41fbd2b7d5ddeb27e4adc22eeca3cc7e8d9f4859af22d2e9fd29dd15ed24ce24.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:1608
    • C:\Users\Admin\AppData\Local\Temp\78HAHRN02AZLN12DTDUS7WEAG3.exe
      "C:\Users\Admin\AppData\Local\Temp\78HAHRN02AZLN12DTDUS7WEAG3.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:5100
    • C:\Users\Admin\AppData\Local\Temp\M8NA1DPB75CPV2S7TEZ1A.exe
      "C:\Users\Admin\AppData\Local\Temp\M8NA1DPB75CPV2S7TEZ1A.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:776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\78HAHRN02AZLN12DTDUS7WEAG3.exe

    Filesize

    1.6MB

    MD5

    c22653a5dec4646861e3a66a0275dbc5

    SHA1

    627a1c28de11ba6bed383a2947aa482c1cfa14e7

    SHA256

    7d70a4737819c33b2875e14f862a474910e1d8618ae4b16dc194ca9a68dae9c7

    SHA512

    e1c1add085fbf978055385288f613fe65011d8c827d7c9d73b0f06ee303df87b4877d68b30988aea0f7730c854b23db11dbfdda313f1a2a6f00ede0aaca61dac

  • C:\Users\Admin\AppData\Local\Temp\M8NA1DPB75CPV2S7TEZ1A.exe

    Filesize

    2.8MB

    MD5

    f10511fc918f0b1648e448adabadb5ac

    SHA1

    de86f9989345f527964309965735cdaee4935ff9

    SHA256

    b60a85fbc4a8c4db17b7a02e922fa6354ed7bab533fab292fc79b6c73e17e1b4

    SHA512

    414055e0a1f1d3c625de5f36e69530bf8f3e88b77e56ec95dd64761580a0f1ac32cd42b1ad30fb8ad9ae8382d610a4ea7d8c0c368b03a615b046cfeaea22040b

  • memory/776-19-0x0000000000DF0000-0x00000000012F4000-memory.dmp

    Filesize

    5.0MB

  • memory/776-17-0x0000000000DF0000-0x00000000012F4000-memory.dmp

    Filesize

    5.0MB

  • memory/1608-3-0x0000000000100000-0x0000000000581000-memory.dmp

    Filesize

    4.5MB

  • memory/1608-4-0x0000000000100000-0x0000000000581000-memory.dmp

    Filesize

    4.5MB

  • memory/1608-0-0x0000000000100000-0x0000000000581000-memory.dmp

    Filesize

    4.5MB

  • memory/1608-15-0x0000000000100000-0x0000000000581000-memory.dmp

    Filesize

    4.5MB

  • memory/1608-2-0x0000000000101000-0x0000000000126000-memory.dmp

    Filesize

    148KB

  • memory/1608-1-0x0000000077DE4000-0x0000000077DE6000-memory.dmp

    Filesize

    8KB

  • memory/5100-9-0x0000000000D80000-0x00000000011D6000-memory.dmp

    Filesize

    4.3MB

  • memory/5100-10-0x0000000000D80000-0x00000000011D6000-memory.dmp

    Filesize

    4.3MB

  • memory/5100-11-0x0000000000D80000-0x00000000011D6000-memory.dmp

    Filesize

    4.3MB

  • memory/5100-20-0x0000000000D80000-0x00000000011D6000-memory.dmp

    Filesize

    4.3MB

  • memory/5100-24-0x0000000000D80000-0x00000000011D6000-memory.dmp

    Filesize

    4.3MB