Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2024 17:07

General

  • Target

    37aafa95a96bdc9144593c820466f3f063cd0e9fb3c6d2bcfab4c1bf0b61e51b.exe

  • Size

    1.8MB

  • MD5

    f9694cb15c258cf8125cf0c317c77479

  • SHA1

    ad7ab004164e247a32fb8eb4187103a1eaf73657

  • SHA256

    37aafa95a96bdc9144593c820466f3f063cd0e9fb3c6d2bcfab4c1bf0b61e51b

  • SHA512

    41504ae13f21e126508b91cdacc3d993790b7ce6001a0d58353860ad4eccb76858f553f4dd49d1960fae09a777160493932c0bb9acebd3bad3aae6e0dc2e2351

  • SSDEEP

    49152:QfiXfPvlOJ1kUi0pzJZ8AMSdBtxh5WBAB6lce:Q+MJ5Zc4vWGB6+e

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 4 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\37aafa95a96bdc9144593c820466f3f063cd0e9fb3c6d2bcfab4c1bf0b61e51b.exe
    "C:\Users\Admin\AppData\Local\Temp\37aafa95a96bdc9144593c820466f3f063cd0e9fb3c6d2bcfab4c1bf0b61e51b.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:1728
    • C:\Users\Admin\AppData\Local\Temp\24DTQV78EH6X9TV8Q.exe
      "C:\Users\Admin\AppData\Local\Temp\24DTQV78EH6X9TV8Q.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:2792
    • C:\Users\Admin\AppData\Local\Temp\SY8AFCS2D988LI8PEOX0DRXA.exe
      "C:\Users\Admin\AppData\Local\Temp\SY8AFCS2D988LI8PEOX0DRXA.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:1040

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\SY8AFCS2D988LI8PEOX0DRXA.exe

    Filesize

    2.8MB

    MD5

    53255a4e52bac509d13e48fe99717cb0

    SHA1

    763d5cf8a29bad2c20eb0270392e02426afe8e82

    SHA256

    86c5ad704dccd2f1a4175b66e019550a68ebcd538ef9ad6f9aee743a613940af

    SHA512

    5a1a5fad42a71a6bc795f82ab29a025e5b5076310cbbfa5fb845af5cd9149348c523493bf3d675a9941019a05eddd108a4601cf77ca6b8f8e7fd74cba244fb1d

  • \Users\Admin\AppData\Local\Temp\24DTQV78EH6X9TV8Q.exe

    Filesize

    1.7MB

    MD5

    4b286a4c9eeff77633d1569f9a4def47

    SHA1

    26a5f3284d3a6226087d9f912f8244842e1aed5e

    SHA256

    1f8fda9aaebda90ca930eb9a5fda2da3c4d5571acb0ef5bd9ab0af46edd0acc7

    SHA512

    341eb09b0d0c757f9e85ad392a43a0ad565e02b8b21b0bbd57b1385fb3a9e2965ceb28db5fa65eeb09b09ca8e47e10f4533808d98bb56311fccb1324a79809ae

  • memory/1040-35-0x00000000002D0000-0x00000000007D4000-memory.dmp

    Filesize

    5.0MB

  • memory/1040-34-0x00000000002D0000-0x00000000007D4000-memory.dmp

    Filesize

    5.0MB

  • memory/1728-18-0x00000000062A0000-0x000000000670C000-memory.dmp

    Filesize

    4.4MB

  • memory/1728-17-0x00000000062A0000-0x000000000670C000-memory.dmp

    Filesize

    4.4MB

  • memory/1728-6-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/1728-7-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/1728-8-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/1728-9-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/1728-4-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/1728-1-0x0000000077540000-0x0000000077542000-memory.dmp

    Filesize

    8KB

  • memory/1728-0-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/1728-5-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/1728-2-0x0000000001251000-0x0000000001276000-memory.dmp

    Filesize

    148KB

  • memory/1728-3-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/1728-32-0x00000000062A0000-0x00000000067A4000-memory.dmp

    Filesize

    5.0MB

  • memory/1728-33-0x00000000062A0000-0x00000000067A4000-memory.dmp

    Filesize

    5.0MB

  • memory/1728-31-0x0000000001250000-0x00000000016F3000-memory.dmp

    Filesize

    4.6MB

  • memory/2792-22-0x0000000001020000-0x000000000148C000-memory.dmp

    Filesize

    4.4MB

  • memory/2792-21-0x0000000001020000-0x000000000148C000-memory.dmp

    Filesize

    4.4MB

  • memory/2792-20-0x0000000001020000-0x000000000148C000-memory.dmp

    Filesize

    4.4MB

  • memory/2792-36-0x0000000001020000-0x000000000148C000-memory.dmp

    Filesize

    4.4MB

  • memory/2792-39-0x0000000001020000-0x000000000148C000-memory.dmp

    Filesize

    4.4MB