Analysis

  • max time kernel
    125s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2024, 07:57

General

  • Target
    file.exe
  • Size 446KB
  • Sample240922-js9brsyglp
  • SHA256 338e2378b54f3a94828bc23452f0b6e7bd7f69bc2fb13c618e727feafe61d1ee
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • pub3

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Program crash 1 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.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks SCSI registry key(s)
    PID:3944
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3944 -s 356
      2⤵
      • Program crash
      PID:5004
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3944 -ip 3944
    1⤵
      PID:4640
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3924,i,3861745594156495651,17595114179815238301,262144 --variations-seed-version --mojo-platform-channel-handle=2508 /prefetch:8
      1⤵
        PID:2160

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            memory/3944-1-0x00000000026E0000-0x00000000027E0000-memory.dmp

            memory/3944-2-0x0000000000400000-0x000000000040B000-memory.dmp

            memory/3944-3-0x0000000000400000-0x0000000002488000-memory.dmp

            memory/3944-4-0x0000000000400000-0x0000000002488000-memory.dmp

            memory/3944-5-0x0000000000400000-0x000000000040B000-memory.dmp