Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2024, 11:40

General

  • Target
    e36a28d0d74157349ac6dd62b79d979e.exe
  • Size 2.8MB
  • Sample241226-nsv7csvldq
  • SHA256 46e7d0e507f9199983dfd42c1c79f3bef099c2bb6a621566a398d5f8b82ee9fa
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • lumma

C2
  • https://hummskitnj.buzz/api

  • https://cashfuzysao.buzz/api

  • https://appliacnesot.buzz/api

  • https://screwamusresz.buzz/api

  • https://inherineau.buzz/api

  • https://scentniej.buzz/api

  • https://rebuildeso.buzz/api

  • https://prisonyfork.buzz/api

  • https://mindhandru.buzz/api

Extracted

Family
  • lumma

C2
  • https://mindhandru.buzz/api

  • https://prisonyfork.buzz/api

  • https://rebuildeso.buzz/api

  • https://scentniej.buzz/api

  • https://inherineau.buzz/api

  • https://screwamusresz.buzz/api

  • https://appliacnesot.buzz/api

  • https://cashfuzysao.buzz/api

  • https://hummskitnj.buzz/api

Signatures

  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Lumma family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e36a28d0d74157349ac6dd62b79d979e.exe
    "C:\Users\Admin\AppData\Local\Temp\e36a28d0d74157349ac6dd62b79d979e.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
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:2540

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Cab8EBA.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Cab8EBA.tmp
        • Size 70KB
        • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
        • MD5 SHA1 SHA512 SSDEEP

        Tar8EDC.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar8EDC.tmp
        • Size 181KB
        • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
        • MD5 SHA1 SHA512 SSDEEP

        memory/2540-0-0x00000000000E0000-0x00000000003E8000-memory.dmp

        memory/2540-1-0x0000000077930000-0x0000000077932000-memory.dmp

        memory/2540-2-0x00000000000E1000-0x0000000000108000-memory.dmp

        memory/2540-3-0x00000000000E0000-0x00000000003E8000-memory.dmp

        memory/2540-4-0x00000000000E0000-0x00000000003E8000-memory.dmp

        memory/2540-39-0x00000000000E0000-0x00000000003E8000-memory.dmp