Analysis

  • max time kernel
    150s
  • 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 04:23

General

  • Target

    b6046ae1bd10e5aa4bb9280b48cd846482d5122de8bbe54998800e734bddd7f7.exe

  • Size

    1.8MB

  • MD5

    42b62e1e747b64a54a3f6896df2128d5

  • SHA1

    4b0d19351ed7eb44908eae3020b8298ed221d100

  • SHA256

    b6046ae1bd10e5aa4bb9280b48cd846482d5122de8bbe54998800e734bddd7f7

  • SHA512

    dca1b52076478cb15bded75a98ea7d689e548d87c1117c33bf303750b6495d396deb9de30711fc1eabfa0e47af20460c0bc1c15b2c85b683401c40c7e101e229

  • SSDEEP

    49152:CtR8X2NBoIch/r5dAYs8fbx6XBM15lyMUqPd/R:CTWYc/w4xExExR

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\b6046ae1bd10e5aa4bb9280b48cd846482d5122de8bbe54998800e734bddd7f7.exe
    "C:\Users\Admin\AppData\Local\Temp\b6046ae1bd10e5aa4bb9280b48cd846482d5122de8bbe54998800e734bddd7f7.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:1344
    • C:\Users\Admin\AppData\Local\Temp\N0JIJM2KJCL4EVZ5Q32.exe
      "C:\Users\Admin\AppData\Local\Temp\N0JIJM2KJCL4EVZ5Q32.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:2524
    • C:\Users\Admin\AppData\Local\Temp\S6KX6U18H62SCLVKNXZNOT.exe
      "C:\Users\Admin\AppData\Local\Temp\S6KX6U18H62SCLVKNXZNOT.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:232

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\N0JIJM2KJCL4EVZ5Q32.exe

    Filesize

    1.7MB

    MD5

    2bd7be5558ce4203112063f6b2c45454

    SHA1

    c0aa5acecc953e6cab2482b12c9e31ee9ce2804c

    SHA256

    be4d98eb32b36999f88fa786b3ee8d77abf2177421c04984c27e16aa8153e4aa

    SHA512

    69e472d56b45a8ce6df10725f80e20738327a4d9037894e8da910747081ce9496e5c4c59cf23a128088cea1c62a514ddf457680854a37cdcf27c22eeffe546f2

  • C:\Users\Admin\AppData\Local\Temp\S6KX6U18H62SCLVKNXZNOT.exe

    Filesize

    2.8MB

    MD5

    7d8e297d9b2cdcb4bfc19cb761f0abf8

    SHA1

    7c41c6737ebc85cee2b5f61fdc515606356ed262

    SHA256

    8a988b1b507d489e9627de9f397353e9713e8bdd8125686d3fbcba852ca77bf6

    SHA512

    e937f013c613a5b5ad6df0ceb78b97711328c767bb353ecdc61f29e72e64bced3dde757c5a77ae1516d902e5099f10c9b2455381610f4827d52c2b44e6d4fd41

  • memory/232-21-0x0000000000F60000-0x000000000145F000-memory.dmp

    Filesize

    5.0MB

  • memory/232-25-0x0000000000F60000-0x000000000145F000-memory.dmp

    Filesize

    5.0MB

  • memory/1344-0-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/1344-1-0x00000000779D4000-0x00000000779D6000-memory.dmp

    Filesize

    8KB

  • memory/1344-6-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/1344-7-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/1344-4-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/1344-9-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/1344-5-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/1344-2-0x0000000000B81000-0x0000000000BA6000-memory.dmp

    Filesize

    148KB

  • memory/1344-8-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/1344-23-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/1344-3-0x0000000000B80000-0x0000000001013000-memory.dmp

    Filesize

    4.6MB

  • memory/2524-14-0x00000000003B0000-0x0000000000830000-memory.dmp

    Filesize

    4.5MB

  • memory/2524-16-0x00000000003B0000-0x0000000000830000-memory.dmp

    Filesize

    4.5MB

  • memory/2524-15-0x00000000003B0000-0x0000000000830000-memory.dmp

    Filesize

    4.5MB

  • memory/2524-26-0x00000000003B0000-0x0000000000830000-memory.dmp

    Filesize

    4.5MB

  • memory/2524-30-0x00000000003B0000-0x0000000000830000-memory.dmp

    Filesize

    4.5MB