Overview

overview

10

Static

static

3

winprofile

windows7-x64

10

winprofile

windows10-1703-x64

10

Analysis

  • max time kernel
    243s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01-05-2024 23:24

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General

  • Target

    8419cca489c02e8125879d791c9916df4a35645eba2a8cfacfa9663facb673d4.exe

  • Size

    264KB

  • MD5

    1b435eb85a1d60aa9b92f6d614e8875f

  • SHA1

    33c0147d53e4b119fa061e66526bf74a9045aede

  • SHA256

    8419cca489c02e8125879d791c9916df4a35645eba2a8cfacfa9663facb673d4

  • SHA512

    8f4eaebea6dd557c5f0d4eb9d188b1d4bbe25ee5318f704e6c7b7fa794127e1f57a570d1b3ee28e773fcac1013b249c82aa297337d39b7b4dd75e02538cdd2a2

  • SSDEEP

    3072:qB67iEwpsSdEH+u+gT0PJY72J8PVtQTZ9YKzZRXCANVm9gVwn:qHtTaHcgTD72WPsZO+10+

Score
10/10
smokeloaderpub1backdoorbootkitpersistencetrojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Downloads MZ/PE file
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Drops file in Windows directory 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 30 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of WriteProcessMemory 16 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\8419cca489c02e8125879d791c9916df4a35645eba2a8cfacfa9663facb673d4.exe
    "C:\Users\Admin\AppData\Local\Temp\8419cca489c02e8125879d791c9916df4a35645eba2a8cfacfa9663facb673d4.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2720
  • C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\E7D0.bat" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2428
    • C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
      2⤵
        PID:2368
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\F45E.bat" "
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2828
      • C:\Windows\system32\reg.exe
        reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
        2⤵
          PID:2100
      • C:\Users\Admin\AppData\Local\Temp\55C0.exe
        C:\Users\Admin\AppData\Local\Temp\55C0.exe
        1⤵
        • Executes dropped EXE
        • Writes to the Master Boot Record (MBR)
        PID:2296
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1592
      • C:\Windows\system32\AUDIODG.EXE
        C:\Windows\system32\AUDIODG.EXE 0x58c
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2624

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Initial Access

      Execution

      Persistence

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Pre-OS Boot

      1
      T1542

      Bootkit

      1
      T1542.003

      Privilege Escalation

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Defense Evasion

      Modify Registry

      1
      T1112

      Pre-OS Boot

      1
      T1542

      Bootkit

      1
      T1542.003

      Credential Access

      Discovery

      Query Registry

      2
      T1012

      Peripheral Device Discovery

      1
      T1120

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Web Service

      1
      T1102

      Impact

      Resource Development

      Reconnaissance

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\55C0.exe
        Filesize

        421KB

        MD5

        9185b776b7a981d060b0bb0d7ffed201

        SHA1

        427982fb520c099e8d2e831ace18294ade871aff

        SHA256

        91a45c416324ed3a8c184e349214e7c82d6df0df4fe6d06f3c7818c0d322373b

        SHA512

        cb46ca0c3156dc7b177fdb73869e13b229cbab8918dbb4b61a854765313fc9526aa5d7b944aa4b9acb77717c5ffd8fe955ba4eb48d75e2528ec844bfcf4aa5e8

        Download Submit
      • C:\Users\Admin\AppData\Local\Temp\E7D0.bat
        Filesize

        77B

        MD5

        55cc761bf3429324e5a0095cab002113

        SHA1

        2cc1ef4542a4e92d4158ab3978425d517fafd16d

        SHA256

        d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

        SHA512

        33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

        Download Submit
      • memory/1204-4-0x0000000002980000-0x0000000002996000-memory.dmp
        Filesize

        88KB

        Download
      • memory/1204-36-0x00000000021F0000-0x00000000021F1000-memory.dmp
        Filesize

        4KB

        Download
      • memory/1592-41-0x0000000003890000-0x00000000038A0000-memory.dmp
        Filesize

        64KB

        Download
      • memory/2720-1-0x0000000001AB0000-0x0000000001BB0000-memory.dmp
        Filesize

        1024KB

        Download
      • memory/2720-3-0x0000000000400000-0x000000000040B000-memory.dmp
        Filesize

        44KB

        Download
      • memory/2720-2-0x0000000000220000-0x000000000022B000-memory.dmp
        Filesize

        44KB

        Download
      • memory/2720-8-0x0000000000400000-0x000000000040B000-memory.dmp
        Filesize

        44KB

        Download
      • memory/2720-5-0x0000000000400000-0x0000000001A0E000-memory.dmp
        Filesize

        22.1MB

        Download