Overview

overview

10

Static

static

3

winprofile

windows7-x64

10

winprofile

windows10-1703-x64

10

Analysis

  • max time kernel
    222s
  • max time network
    194s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    01-05-2024 22:57

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General

  • Target

    432b0b91e01efb4a9cd4a23f6d0de4e7c2b7c5d9349b85d661c4475bfe115f86.exe

  • Size

    303KB

  • MD5

    f720d5284b6ffb2f05f17fd168ac3bb5

  • SHA1

    3989933110f4929de0301397ade9a695296aa037

  • SHA256

    432b0b91e01efb4a9cd4a23f6d0de4e7c2b7c5d9349b85d661c4475bfe115f86

  • SHA512

    5567c31c3f40cb48736bf18c7705effaecfde5ec97fbbe2ee94aff98a17c1a94e7f8867e8572a181012eabc3ca69e1c94e3912d84bdaa6e43efeecdf83d39620

  • SSDEEP

    3072:kzPuD9przKb72w0rkvw+HHebmTc4OQon8tJu64ofEy+qQzYVOuCjRQ1HELNrI7IH:95hzxnVCeKgL8t464oV+FNunpELJpV

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 2 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 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
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Modifies registry class 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 28 IoCs
  • Suspicious use of FindShellTrayWindow 56 IoCs
  • Suspicious use of SendNotifyMessage 38 IoCs
  • Suspicious use of WriteProcessMemory 20 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\432b0b91e01efb4a9cd4a23f6d0de4e7c2b7c5d9349b85d661c4475bfe115f86.exe
    "C:\Users\Admin\AppData\Local\Temp\432b0b91e01efb4a9cd4a23f6d0de4e7c2b7c5d9349b85d661c4475bfe115f86.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2416
  • C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\60B6.bat" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
      2⤵
        PID:2736
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\75CD.bat" "
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\system32\reg.exe
        reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
        2⤵
          PID:2740
      • C:\Users\Admin\AppData\Local\Temp\D6E1.exe
        C:\Users\Admin\AppData\Local\Temp\D6E1.exe
        1⤵
        • Executes dropped EXE
        • Writes to the Master Boot Record (MBR)
        PID:2768
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2084
      • C:\Windows\system32\AUDIODG.EXE
        C:\Windows\system32\AUDIODG.EXE 0x7c
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2892
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {904E2B16-9113-43EA-8402-D26C3003F184} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:408
        • C:\Users\Admin\AppData\Roaming\bfaifba
          C:\Users\Admin\AppData\Roaming\bfaifba
          2⤵
          • Executes dropped EXE
          • Checks SCSI registry key(s)
          • Suspicious behavior: MapViewOfSection
          PID:2284
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:780

      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\60B6.bat
        Filesize

        77B

        MD5

        55cc761bf3429324e5a0095cab002113

        SHA1

        2cc1ef4542a4e92d4158ab3978425d517fafd16d

        SHA256

        d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

        SHA512

        33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

        Download Submit
      • C:\Users\Admin\AppData\Local\Temp\D6E1.exe
        Filesize

        421KB

        MD5

        9185b776b7a981d060b0bb0d7ffed201

        SHA1

        427982fb520c099e8d2e831ace18294ade871aff

        SHA256

        91a45c416324ed3a8c184e349214e7c82d6df0df4fe6d06f3c7818c0d322373b

        SHA512

        cb46ca0c3156dc7b177fdb73869e13b229cbab8918dbb4b61a854765313fc9526aa5d7b944aa4b9acb77717c5ffd8fe955ba4eb48d75e2528ec844bfcf4aa5e8

        Download Submit
      • C:\Users\Admin\AppData\Roaming\bfaifba
        Filesize

        303KB

        MD5

        f720d5284b6ffb2f05f17fd168ac3bb5

        SHA1

        3989933110f4929de0301397ade9a695296aa037

        SHA256

        432b0b91e01efb4a9cd4a23f6d0de4e7c2b7c5d9349b85d661c4475bfe115f86

        SHA512

        5567c31c3f40cb48736bf18c7705effaecfde5ec97fbbe2ee94aff98a17c1a94e7f8867e8572a181012eabc3ca69e1c94e3912d84bdaa6e43efeecdf83d39620

        Download Submit
      • memory/1212-4-0x0000000002D60000-0x0000000002D76000-memory.dmp
        Filesize

        88KB

        Download
      • memory/1212-36-0x0000000002090000-0x0000000002091000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2084-41-0x00000000045A0000-0x00000000045B6000-memory.dmp
        Filesize

        88KB

        Download
      • memory/2284-42-0x0000000000400000-0x0000000001A17000-memory.dmp
        Filesize

        22.1MB

        Download
      • memory/2416-3-0x0000000000400000-0x000000000040B000-memory.dmp
        Filesize

        44KB

        Download
      • memory/2416-2-0x0000000000220000-0x000000000022B000-memory.dmp
        Filesize

        44KB

        Download
      • memory/2416-1-0x0000000001BE0000-0x0000000001CE0000-memory.dmp
        Filesize

        1024KB

        Download
      • memory/2416-8-0x0000000000400000-0x000000000040B000-memory.dmp
        Filesize

        44KB

        Download
      • memory/2416-5-0x0000000000400000-0x0000000001A17000-memory.dmp
        Filesize

        22.1MB

        Download