Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/01/2023, 04:31

General

  • Target
    file.exe
  • Size 210KB
  • Sample230116-e5dcmsdb8w
  • SHA256 8df105affac7a3c0348efdb7c5f1f159acceda0c13d5f318e611e5528e82d874
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • lumma

C2
  • 77.73.134.68

Signatures

  • Detects Smokeloader packer 1 IoCs
  • Lumma Stealer

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

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • 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
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4076
  • C:\Users\Admin\AppData\Local\Temp\272A.exe
    C:\Users\Admin\AppData\Local\Temp\272A.exe
    1⤵
    • Executes dropped EXE
    PID:3248
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3248 -s 1360
      2⤵
      • Program crash
      PID:2616
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3248 -ip 3248
    1⤵
      PID:1292

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          272A.exe

          • Path C:\Users\Admin\AppData\Local\Temp\272A.exe
          • Size 248KB
          • SHA256 7b9e17219d79e0535177f413836088cf5fafb5854f3d2b18856a9834e0ef2084
          • MD5 SHA1 SHA512 SSDEEP

          272A.exe

          • Path C:\Users\Admin\AppData\Local\Temp\272A.exe
          • Size 248KB
          • SHA256 7b9e17219d79e0535177f413836088cf5fafb5854f3d2b18856a9834e0ef2084
          • MD5 SHA1 SHA512 SSDEEP

          memory/2032-171-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-174-0x0000000002D20000-0x0000000002D30000-memory.dmp

          memory/2032-139-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-140-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-141-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-142-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-143-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-144-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-137-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-146-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-147-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-148-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-149-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-150-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-151-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-152-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-153-0x0000000002EB0000-0x0000000002EC0000-memory.dmp

          memory/2032-154-0x0000000002EF0000-0x0000000002F00000-memory.dmp

          memory/2032-155-0x0000000002EF0000-0x0000000002F00000-memory.dmp

          memory/2032-156-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-157-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-158-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-159-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-160-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-161-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-173-0x0000000002D10000-0x0000000002D20000-memory.dmp

          memory/2032-163-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-164-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-165-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-166-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-167-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-168-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-169-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-170-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-145-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-138-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-162-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-172-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-175-0x0000000002D20000-0x0000000002D30000-memory.dmp

          memory/2032-176-0x0000000002D20000-0x0000000002D30000-memory.dmp

          memory/2032-177-0x0000000002D10000-0x0000000002D20000-memory.dmp

          memory/2032-178-0x0000000002D20000-0x0000000002D30000-memory.dmp

          memory/2032-179-0x0000000002D20000-0x0000000002D30000-memory.dmp

          memory/2032-180-0x0000000002D20000-0x0000000002D30000-memory.dmp

          memory/2032-136-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-205-0x0000000003080000-0x0000000003090000-memory.dmp

          memory/2032-204-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-203-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-202-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-201-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-188-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-189-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-190-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-191-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-192-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-193-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-194-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-195-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-196-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-197-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-198-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-199-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/2032-200-0x0000000002E90000-0x0000000002EA0000-memory.dmp

          memory/3248-187-0x0000000000400000-0x0000000002BA6000-memory.dmp

          memory/3248-186-0x0000000000400000-0x0000000002BA6000-memory.dmp

          memory/3248-185-0x00000000047B0000-0x00000000047DA000-memory.dmp

          memory/3248-184-0x0000000002C19000-0x0000000002C32000-memory.dmp

          memory/4076-132-0x0000000002DC9000-0x0000000002DDA000-memory.dmp

          memory/4076-133-0x0000000002D30000-0x0000000002D39000-memory.dmp

          memory/4076-134-0x0000000000400000-0x0000000002B9D000-memory.dmp

          memory/4076-135-0x0000000000400000-0x0000000002B9D000-memory.dmp