Analysis

  • max time kernel
    139s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/01/2024, 15:17

General

  • Target

    a105e53b26d14ee11b4099ca980c3a66.exe

  • Size

    6.2MB

  • MD5

    a105e53b26d14ee11b4099ca980c3a66

  • SHA1

    3401dacbb0c70761ca17b05669e7d45adcfe5c94

  • SHA256

    516fdf7133fbdf91f3cc3ced81bef7ea2c44e18bc2c132c64805b424664f3e0c

  • SHA512

    1c2fb1e52179cc54b67ad34ca990d612862b0cb2cc63b28c110b2448221d72131ad70cb4043ab566a0eb01626216ba3f036dcdb868a2c27ef67207cb3c23cfde

  • SSDEEP

    196608:uXaNgTf9diZv0BM4rd9zCpBYKP7I/KlSPaM:uRTf20zrvzCnYe7I/KlCaM

Malware Config

Extracted

Family

lumma

C2

https://goddirtybrilliancece.fun/api

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 10 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a105e53b26d14ee11b4099ca980c3a66.exe
    "C:\Users\Admin\AppData\Local\Temp\a105e53b26d14ee11b4099ca980c3a66.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 behavior: EnumeratesProcesses
    PID:4728
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4728 -s 1072
      2⤵
      • Program crash
      PID:4972
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4728 -ip 4728
    1⤵
      PID:4360

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/4728-0-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-1-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-6-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB

          • memory/4728-7-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB

          • memory/4728-8-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB

          • memory/4728-9-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB

          • memory/4728-10-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB

          • memory/4728-11-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB

          • memory/4728-12-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB

          • memory/4728-13-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB

          • memory/4728-14-0x0000000077404000-0x0000000077406000-memory.dmp

            Filesize

            8KB

          • memory/4728-15-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-16-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-17-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-18-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-19-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-20-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-21-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-22-0x00000000004F0000-0x0000000001235000-memory.dmp

            Filesize

            13.3MB

          • memory/4728-25-0x00000000758B0000-0x00000000759A0000-memory.dmp

            Filesize

            960KB