Analysis

  • max time kernel
    94s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • submitted
    03/12/2024, 16:02

General

  • Target
    file.exe
  • Size 1.8MB
  • Sample241203-tgryfsskhz
  • SHA256 e5bef128d5c8332b25b485409dfa7eac3d06c3c9a45cb0a3decc7592e6fabdb9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • lumma

C2
  • https://impend-differ.biz/api

  • https://print-vexer.biz/api

  • https://dare-curbys.biz/api

  • https://covery-mover.biz/api

  • https://formy-spill.biz/api

  • https://dwell-exclaim.biz/api

  • https://zinc-sneark.biz/api

  • https://se-blurry.biz/api

  • https://atten-supporse.biz/api

Extracted

Family
  • lumma

C2
  • https://atten-supporse.biz/api

  • https://se-blurry.biz/api

  • https://zinc-sneark.biz/api

  • https://dwell-exclaim.biz/api

  • https://formy-spill.biz/api

  • https://covery-mover.biz/api

  • https://dare-curbys.biz/api

  • https://print-vexer.biz/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
  • 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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.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:5056
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 1560
      2⤵
      • Program crash
      PID:2056
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5056 -s 1524
      2⤵
      • Program crash
      PID:4628
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5056 -ip 5056
    1⤵
      PID:4016
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 5056 -ip 5056
      1⤵
        PID:4708

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            memory/5056-0-0x0000000000F90000-0x0000000001435000-memory.dmp

            memory/5056-1-0x0000000077A84000-0x0000000077A86000-memory.dmp

            memory/5056-2-0x0000000000F91000-0x0000000000FB3000-memory.dmp

            memory/5056-3-0x0000000000F90000-0x0000000001435000-memory.dmp

            memory/5056-4-0x0000000000F90000-0x0000000001435000-memory.dmp

            memory/5056-5-0x0000000000F90000-0x0000000001435000-memory.dmp

            memory/5056-6-0x0000000000F90000-0x0000000001435000-memory.dmp