Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-07-2023 05:57

General

  • Target

    a38ae8a1930668deab4303643fa01807.exe

  • Size

    3.1MB

  • MD5

    a38ae8a1930668deab4303643fa01807

  • SHA1

    36db91eaf9927c112e3ee2226dddae9e79e02562

  • SHA256

    3dff203bab1db4bd7012e5daa23e467f7919587e5a306e497edb85caa2497dbe

  • SHA512

    8f9d91bbd31f3873b3f3d9bdf6572986fb18c4a8d6b536f450e15c548f8e009850fece4804267a16e4c7a457a1de6e5ba620efa4d86c8058a82fb6139181de25

  • SSDEEP

    49152:Q87rM76glSA2JVgP9Fr308sWf379GGe4/9RJGV21mAwXm1PF+B0jzqCS:5e6gp2Lg/0Lu3JD1RJ+qmAwqF+UqCS

Malware Config

Extracted

Family

lumma

C2

gstatic-node.io

Signatures

  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • 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.

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a38ae8a1930668deab4303643fa01807.exe
    "C:\Users\Admin\AppData\Local\Temp\a38ae8a1930668deab4303643fa01807.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
        PID:2196
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        2⤵
          PID:3420

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2944-152-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-164-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-133-0x0000000000270000-0x0000000000962000-memory.dmp

        Filesize

        6.9MB

      • memory/2944-140-0x0000000000270000-0x0000000000962000-memory.dmp

        Filesize

        6.9MB

      • memory/2944-142-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-141-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-144-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-146-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-148-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-156-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-138-0x0000000005540000-0x00000000055DC000-memory.dmp

        Filesize

        624KB

      • memory/2944-154-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-150-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-158-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-160-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-162-0x0000000003110000-0x0000000003125000-memory.dmp

        Filesize

        84KB

      • memory/2944-137-0x0000000000270000-0x0000000000962000-memory.dmp

        Filesize

        6.9MB

      • memory/2944-170-0x0000000000270000-0x0000000000962000-memory.dmp

        Filesize

        6.9MB

      • memory/3420-166-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/3420-168-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/3420-165-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/3420-171-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB

      • memory/3420-172-0x0000000000400000-0x000000000045B000-memory.dmp

        Filesize

        364KB