Analysis

  • max time kernel
    81s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-01-2024 02:28

General

  • Target

    5bdbb3c46fdbc4c6e02a1a79c31bf98e.exe

  • Size

    231KB

  • MD5

    5bdbb3c46fdbc4c6e02a1a79c31bf98e

  • SHA1

    4cd68f2aaf4f66b06c78c3451f5d666160d7dd3e

  • SHA256

    4e5eed42429be79e4a35d0e137149356319debf7e20ec9a8ca744564ddd95f43

  • SHA512

    afa1dfaad63267e4ba5c7bf877c98e0244a06a2a4183adbe97defd9ab5f186b5eec9cd17f535f9c71407ed477320bd07950e8d8326a1401c159daa094d5b7858

  • SSDEEP

    3072:4VoDDLUyxjbSRW51yOfz6gK+HcG0YdncxTjBLtlkQinZWTMJIe:4Vo3LXdSRWyOfe8FB0jBpSv

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://sinuptinulium.net/index.php

http://thethuthe3.net/index.php

http://rakutenmakutern.net/index.php

http://sindusyndy.net/index.php

http://lovelyloversbouuyrs.net/index.php

http://stanystarysturu.net/index.php

http://tybytimemunutere.net/index.php

http://opengamerstypepsy.net/index.php

http://lumustruoues.net/index.php

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 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
  • 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\5bdbb3c46fdbc4c6e02a1a79c31bf98e.exe
    "C:\Users\Admin\AppData\Local\Temp\5bdbb3c46fdbc4c6e02a1a79c31bf98e.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1240
  • C:\Users\Admin\AppData\Roaming\vutrtbi
    C:\Users\Admin\AppData\Roaming\vutrtbi
    1⤵
    • Executes dropped EXE
    PID:4304

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1240-2-0x00000000009C0000-0x00000000009CB000-memory.dmp

    Filesize

    44KB

  • memory/1240-3-0x0000000000400000-0x000000000085B000-memory.dmp

    Filesize

    4.4MB

  • memory/1240-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

    Filesize

    1024KB

  • memory/1240-5-0x0000000000400000-0x000000000085B000-memory.dmp

    Filesize

    4.4MB

  • memory/3524-4-0x0000000002390000-0x00000000023A6000-memory.dmp

    Filesize

    88KB

  • memory/3524-16-0x0000000001EC0000-0x0000000001ED6000-memory.dmp

    Filesize

    88KB

  • memory/4304-15-0x0000000000400000-0x000000000085B000-memory.dmp

    Filesize

    4.4MB

  • memory/4304-14-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

    Filesize

    1024KB

  • memory/4304-17-0x0000000000400000-0x000000000085B000-memory.dmp

    Filesize

    4.4MB