Analysis

  • max time kernel
    93s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/12/2024, 16:15

General

  • Target
    4ba0641b1f9224605df854c9baaa5dcf.exe
  • Size 2.8MB
  • Sample241223-tp87psvjbx
  • SHA256 7cadf23c992d86cba2587cdf6ddccc39a0d72deb6eef34eb64aae0c097e2f54a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • lumma

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
  • Program crash 2 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ba0641b1f9224605df854c9baaa5dcf.exe
    "C:\Users\Admin\AppData\Local\Temp\4ba0641b1f9224605df854c9baaa5dcf.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
    PID:3292
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3292 -s 1476
      2⤵
      • Program crash
      PID:3380
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3292 -s 1400
      2⤵
      • Program crash
      PID:4824
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3292 -ip 3292
    1⤵
      PID:2220
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 3292 -ip 3292
      1⤵
        PID:320

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            memory/3292-0-0x0000000000AD0000-0x0000000000DD7000-memory.dmp

            memory/3292-1-0x0000000077A04000-0x0000000077A06000-memory.dmp

            memory/3292-2-0x0000000000AD1000-0x0000000000AF6000-memory.dmp

            memory/3292-3-0x0000000000AD0000-0x0000000000DD7000-memory.dmp

            memory/3292-4-0x0000000000AD0000-0x0000000000DD7000-memory.dmp