Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/03/2023, 11:44

General

  • Target
    file.exe
  • Size 309KB
  • Sample230315-nv62msfa3z
  • SHA256 aa5cfe1aca97f5d6871a6fcdca915dd5714fa593f2dd9a45500cec888d8fb8f3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • lab

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-file-host6.com/

  • http://host-host-file8.com/

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: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 6 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\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4128
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2288

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2172-160-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-162-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-182-0x0000000002860000-0x0000000002870000-memory.dmp

        memory/2172-181-0x0000000002820000-0x0000000002822000-memory.dmp

        memory/2172-137-0x0000000000880000-0x0000000000896000-memory.dmp

        memory/2172-145-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-146-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-147-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-148-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-150-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-149-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-151-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-152-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-153-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-154-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-155-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-156-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-161-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-158-0x0000000002970000-0x0000000002980000-memory.dmp

        memory/2172-159-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-180-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-179-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-157-0x0000000002850000-0x0000000002860000-memory.dmp

        memory/2172-163-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-164-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-165-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-166-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-167-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-168-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-169-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-171-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-170-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-172-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-174-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-173-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-175-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-178-0x0000000002860000-0x0000000002870000-memory.dmp

        memory/2172-177-0x0000000002840000-0x0000000002850000-memory.dmp

        memory/2172-176-0x0000000002820000-0x0000000002822000-memory.dmp

        memory/2288-134-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/2288-138-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/2288-136-0x0000000000400000-0x0000000000409000-memory.dmp

        memory/4128-135-0x0000000002BD0000-0x0000000002BD9000-memory.dmp