Analysis

  • max time kernel
    140s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    16-12-2024 16:09

General

  • Target

    9b88afc4511d0fe8aca6080d34f2dd66.exe

  • Size

    1.8MB

  • MD5

    9b88afc4511d0fe8aca6080d34f2dd66

  • SHA1

    4d0abcc2f053e2b17d3064f65dffc171f873b043

  • SHA256

    5d2b5f0d8b9fbfb231b99678bb332bee9cfef9aa6c2ed7e994dbabbb83639004

  • SHA512

    f4e9c5bbbb27eb07c192226390833714b82b94cfa4a9fb6b0e0a75ece7b51eb009b9c2bdc3b70c2ee77a56b7496c1251c50888471cddf32a2f307eaf134b1490

  • SSDEEP

    49152:5Ir6N++PRgxCGbe4K9FTTH/e3p7IJIZ1KFvGTPeMXPgnktG:t+PHbe4qe5601ssGM/Nt

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

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
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 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 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b88afc4511d0fe8aca6080d34f2dd66.exe
    "C:\Users\Admin\AppData\Local\Temp\9b88afc4511d0fe8aca6080d34f2dd66.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:2372
    • C:\Users\Admin\AppData\Local\Temp\HZX0KJHW83O9L7NAHAE.exe
      "C:\Users\Admin\AppData\Local\Temp\HZX0KJHW83O9L7NAHAE.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:2672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\HZX0KJHW83O9L7NAHAE.exe

    Filesize

    2.7MB

    MD5

    7d60d18dcc44e074d7392384743481fe

    SHA1

    fe4d910529c03762fba8f8df5cf405f5e6f1c30f

    SHA256

    62e97f2c558313f494a3554fe24ba552da64f709a98e4880a5a6b621dc89f789

    SHA512

    83b8bfbac6d666b4d2e34c563165375ea3b55a77c346ef23ed033ad7a1e5c2c750a45833f33a01dc0f8d826a9b68296433d4492e65c83ad5005a734028e5301d

  • memory/2372-7-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-36-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-13-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-4-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-5-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-6-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-37-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-8-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-9-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-10-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-11-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-12-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-3-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-2-0x00000000003D1000-0x00000000003F6000-memory.dmp

    Filesize

    148KB

  • memory/2372-29-0x0000000006280000-0x0000000006540000-memory.dmp

    Filesize

    2.8MB

  • memory/2372-0-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-21-0x0000000006280000-0x0000000006540000-memory.dmp

    Filesize

    2.8MB

  • memory/2372-41-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-40-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-27-0x0000000006280000-0x0000000006540000-memory.dmp

    Filesize

    2.8MB

  • memory/2372-28-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-22-0x0000000006280000-0x0000000006540000-memory.dmp

    Filesize

    2.8MB

  • memory/2372-39-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-38-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-34-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-35-0x00000000003D0000-0x000000000087C000-memory.dmp

    Filesize

    4.7MB

  • memory/2372-1-0x0000000076F60000-0x0000000076F62000-memory.dmp

    Filesize

    8KB

  • memory/2672-24-0x0000000000B00000-0x0000000000DC0000-memory.dmp

    Filesize

    2.8MB

  • memory/2672-33-0x0000000000B00000-0x0000000000DC0000-memory.dmp

    Filesize

    2.8MB

  • memory/2672-31-0x0000000000B00000-0x0000000000DC0000-memory.dmp

    Filesize

    2.8MB

  • memory/2672-26-0x0000000000B00000-0x0000000000DC0000-memory.dmp

    Filesize

    2.8MB

  • memory/2672-25-0x0000000000B00000-0x0000000000DC0000-memory.dmp

    Filesize

    2.8MB