Analysis

  • max time kernel
    143s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/08/2024, 11:44

General

  • Target
    4a5657725f15936a7f19f28e15028350.exe
  • Size 211KB
  • Sample240820-nv7m6stenj
  • SHA256 4ba27be6350f3474a76793e679f5d8426b66673ba0933d5aeaeb422dbc6caeeb
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • pub2

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\4a5657725f15936a7f19f28e15028350.exe
    "C:\Users\Admin\AppData\Local\Temp\4a5657725f15936a7f19f28e15028350.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks SCSI registry key(s)
    PID:3988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 352
      2⤵
      • Program crash
      PID:3212
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3988 -ip 3988
    1⤵
      PID:1256
    • 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=4288,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=3756 /prefetch:8
      1⤵
        PID:2492

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            memory/3988-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

            memory/3988-2-0x00000000004D0000-0x00000000004DB000-memory.dmp

            memory/3988-3-0x0000000000400000-0x000000000040B000-memory.dmp

            memory/3988-4-0x0000000000400000-0x0000000000448000-memory.dmp

            memory/3988-5-0x00000000004D0000-0x00000000004DB000-memory.dmp

            memory/3988-6-0x0000000000400000-0x000000000040B000-memory.dmp