Analysis

  • max time kernel
    122s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-04-2024 07:49

General

  • Target

    Lisect_AV-T_G3_310.exe

  • Size

    1.7MB

  • MD5

    e98a77a603aedc5064450a664b7e54df

  • SHA1

    57496f2aa27c0e32c27f44726d1cb583bd93275f

  • SHA256

    f1841988a585465476a9439564e30abb62017155f6589c2fe7592a5c43d7fca1

  • SHA512

    7b26c5f0831f4a2988c6d67dc2ca685b755dd6cc7b16e11159d9f73efa2b67dd4759bf1038705248b27ce33c5aee76d2fe2cd185cefea74c8c06080e341be909

  • SSDEEP

    24576:RnIN0rGPjHIsS8nVwxV+pEH6a9Dhvhr9z7gz:RGjHIsS8m++H6a3vn

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of SetThreadContext 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: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Lisect_AV-T_G3_310.exe
    "C:\Users\Admin\AppData\Local\Temp\Lisect_AV-T_G3_310.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1444
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
        PID:4580
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        2⤵
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:2296
    • 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 --no-appcompat-clear --mojo-platform-channel-handle=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4284

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2296-0-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

      • memory/2296-1-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

      • memory/2296-4-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

      • memory/3428-2-0x00000000021D0000-0x00000000021E6000-memory.dmp

        Filesize

        88KB