Resubmissions

28/07/2023, 03:54

230728-egf4maca2w10

27/07/2023, 14:09

230727-rgg25sfb5510

Analysis

  • max time kernel
    144s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/07/2023, 03:54

General

  • Target
    83fb39b83f87a4f7ce15acea69642bf9929c50d8e96043a2a24166fa786c8919.exe
  • Size 476KB
  • Sample230728-egf4maca2w
  • SHA256 83fb39b83f87a4f7ce15acea69642bf9929c50d8e96043a2a24166fa786c8919
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Lumma Stealer

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

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83fb39b83f87a4f7ce15acea69642bf9929c50d8e96043a2a24166fa786c8919.exe
    "C:\Users\Admin\AppData\Local\Temp\83fb39b83f87a4f7ce15acea69642bf9929c50d8e96043a2a24166fa786c8919.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:1104
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 2544
      2⤵
      • Program crash
      PID:2008
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 1104 -ip 1104
    1⤵
      PID:1096

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1104-137-0x0000000002320000-0x0000000002420000-memory.dmp

          memory/1104-138-0x0000000004080000-0x00000000040E1000-memory.dmp

          memory/1104-139-0x0000000000400000-0x000000000231F000-memory.dmp

          memory/1104-140-0x0000000000400000-0x000000000231F000-memory.dmp

          memory/1104-141-0x0000000002320000-0x0000000002420000-memory.dmp

          memory/1104-142-0x0000000004080000-0x00000000040E1000-memory.dmp