Analysis

  • max time kernel
    96s
  • max time network
    136s
  • 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, 08:45

General

  • Target

    bb2f1d74aabd9d2a6eb16dd3cde55e5e.exe

  • Size

    1.8MB

  • MD5

    bb2f1d74aabd9d2a6eb16dd3cde55e5e

  • SHA1

    2000c94f296473baa42444ea0fbd607a0f5cd19a

  • SHA256

    21c3ff6d14dbf792891e0c30da1eb51aa65c6f87c65cd8303e58ed26995a6390

  • SHA512

    d82f1d4cbd8a229c80f896eac151b41af46292ca936c8673053d0c3bddefee62b31b8b614e042dc33ad83ef3935f99d7dcefb8509b5c378ea076ab58dba4da20

  • SSDEEP

    49152:7K/2FxcdjKcueMKUPCEIWadlDHzzq1O0oEprRWh7uC:7Kkc8ypdlDHKHoOWh7u

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\bb2f1d74aabd9d2a6eb16dd3cde55e5e.exe
    "C:\Users\Admin\AppData\Local\Temp\bb2f1d74aabd9d2a6eb16dd3cde55e5e.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:3272
    • C:\Users\Admin\AppData\Local\Temp\QV2LV0UO9KHI1TKR5EIA.exe
      "C:\Users\Admin\AppData\Local\Temp\QV2LV0UO9KHI1TKR5EIA.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:4760
    • C:\Users\Admin\AppData\Local\Temp\QYNAMUZYL26HXDWUONO36A0N.exe
      "C:\Users\Admin\AppData\Local\Temp\QYNAMUZYL26HXDWUONO36A0N.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:4224

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\QV2LV0UO9KHI1TKR5EIA.exe

          Filesize

          1.7MB

          MD5

          a5f5306454959cc92379287fa8f99a9a

          SHA1

          6a339fd816392b7683bb7ab9c694340bef5aab67

          SHA256

          b11c07bbbedbe1d3df654b2f26362dce51c0eaef9bc7a87617cd3d300341a72a

          SHA512

          65865f0f8461845b40b75319096cdbabcf567664f1b0cae0f82c4bc6cb64bcbd748b6e9ebaba60eb35fc35a3415cc8278f29f98bf91d22eb39fc9598d92d6c24

        • C:\Users\Admin\AppData\Local\Temp\QYNAMUZYL26HXDWUONO36A0N.exe

          Filesize

          2.8MB

          MD5

          c8b363548ff963b9eaefdcf0ab866e99

          SHA1

          d3e0fa20ca34e90e5640d30cfd56e7c4b941e917

          SHA256

          1b5103442d7f0ee79daa29f46c1b3bd6ad65e1f844616441e05c592198ebf7f2

          SHA512

          5e69aa93ee6bd2fe29464cf0c07026cefcab515c4217cd6eaa37fe7fb36ceee37a68242625e2fdd70efdc4bdf2cecbb9727189a6f2b3f21138fd6378ad33d3cf

        • memory/3272-10-0x00000000001D0000-0x000000000065F000-memory.dmp

          Filesize

          4.6MB

        • memory/3272-1-0x0000000077A74000-0x0000000077A76000-memory.dmp

          Filesize

          8KB

        • memory/3272-4-0x00000000001D0000-0x000000000065F000-memory.dmp

          Filesize

          4.6MB

        • memory/3272-5-0x00000000001D0000-0x000000000065F000-memory.dmp

          Filesize

          4.6MB

        • memory/3272-2-0x00000000001D1000-0x00000000001F6000-memory.dmp

          Filesize

          148KB

        • memory/3272-20-0x00000000001D0000-0x000000000065F000-memory.dmp

          Filesize

          4.6MB

        • memory/3272-0-0x00000000001D0000-0x000000000065F000-memory.dmp

          Filesize

          4.6MB

        • memory/3272-3-0x00000000001D0000-0x000000000065F000-memory.dmp

          Filesize

          4.6MB

        • memory/4224-18-0x0000000000200000-0x00000000006FD000-memory.dmp

          Filesize

          5.0MB

        • memory/4224-21-0x0000000000200000-0x00000000006FD000-memory.dmp

          Filesize

          5.0MB

        • memory/4760-13-0x0000000000680000-0x0000000000AD8000-memory.dmp

          Filesize

          4.3MB

        • memory/4760-12-0x0000000000680000-0x0000000000AD8000-memory.dmp

          Filesize

          4.3MB

        • memory/4760-11-0x0000000000680000-0x0000000000AD8000-memory.dmp

          Filesize

          4.3MB

        • memory/4760-22-0x0000000000680000-0x0000000000AD8000-memory.dmp

          Filesize

          4.3MB

        • memory/4760-26-0x0000000000680000-0x0000000000AD8000-memory.dmp

          Filesize

          4.3MB