Overview

overview

10

Static

static

3

winprofile

windows7-x64

10

winprofile

windows10-1703-x64

10

Analysis

  • max time kernel
    300s
  • max time network
    285s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18-04-2024 22:36

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General

  • Target

    4da76547d7081b68f3af83c77a5c75b2ff3f0691d7c58aca34632ff2ecd1e98c.exe

  • Size

    307KB

  • MD5

    a11d2533c5dd2b17161fc2eea2ba1bef

  • SHA1

    f7f42c054b83cb0cc3bb0a54a75195f920d9ced8

  • SHA256

    4da76547d7081b68f3af83c77a5c75b2ff3f0691d7c58aca34632ff2ecd1e98c

  • SHA512

    0053214e42b72365bd435ab8f35e4ddc8774c347dfa57d90c9f49c81b23dd1178f0a77b0facb0cce0d29b67b33eb7243a5c7c4f267274374e095a47f4a301a0b

  • SSDEEP

    3072:PAeYeaG3VkbDb3fUv+3lSYS+gPdNoMDBNxCkV8lhFna/c2Soqv9m:P0NbFVrSndyNFa/c2SHl

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 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 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 22 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\4da76547d7081b68f3af83c77a5c75b2ff3f0691d7c58aca34632ff2ecd1e98c.exe
    "C:\Users\Admin\AppData\Local\Temp\4da76547d7081b68f3af83c77a5c75b2ff3f0691d7c58aca34632ff2ecd1e98c.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2224
  • C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\98A7.bat" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2616
    • 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\B52D.bat" "
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Windows\system32\reg.exe
        reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
        2⤵
          PID:2672
      • 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
        • Suspicious use of WriteProcessMemory
        PID:2536
        • C:\Users\Admin\AppData\Local\Temp\23A7.exe
          C:\Users\Admin\AppData\Local\Temp\23A7.exe
          2⤵
          • Executes dropped EXE
          • Writes to the Master Boot Record (MBR)
          PID:2612
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {D7C717D0-1D73-4A82-A0B5-E23346C25B68} S-1-5-21-406356229-2805545415-1236085040-1000:IKJSPGIM\Admin:Interactive:[1]
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Users\Admin\AppData\Roaming\ithebif
          C:\Users\Admin\AppData\Roaming\ithebif
          2⤵
          • Executes dropped EXE
          • Checks SCSI registry key(s)
          • Suspicious behavior: MapViewOfSection
          PID:2712

      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\23A7.exe
        Filesize

        421KB

        MD5

        9185b776b7a981d060b0bb0d7ffed201

        SHA1

        427982fb520c099e8d2e831ace18294ade871aff

        SHA256

        91a45c416324ed3a8c184e349214e7c82d6df0df4fe6d06f3c7818c0d322373b

        SHA512

        cb46ca0c3156dc7b177fdb73869e13b229cbab8918dbb4b61a854765313fc9526aa5d7b944aa4b9acb77717c5ffd8fe955ba4eb48d75e2528ec844bfcf4aa5e8

        Download Submit
      • C:\Users\Admin\AppData\Local\Temp\98A7.bat
        Filesize

        77B

        MD5

        55cc761bf3429324e5a0095cab002113

        SHA1

        2cc1ef4542a4e92d4158ab3978425d517fafd16d

        SHA256

        d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

        SHA512

        33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

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

        307KB

        MD5

        a11d2533c5dd2b17161fc2eea2ba1bef

        SHA1

        f7f42c054b83cb0cc3bb0a54a75195f920d9ced8

        SHA256

        4da76547d7081b68f3af83c77a5c75b2ff3f0691d7c58aca34632ff2ecd1e98c

        SHA512

        0053214e42b72365bd435ab8f35e4ddc8774c347dfa57d90c9f49c81b23dd1178f0a77b0facb0cce0d29b67b33eb7243a5c7c4f267274374e095a47f4a301a0b

        Download Submit
      • memory/1212-4-0x0000000002AB0000-0x0000000002AC6000-memory.dmp
        Filesize

        88KB

        Download
      • memory/1212-30-0x0000000002A90000-0x0000000002A91000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2224-2-0x00000000003A0000-0x00000000003AB000-memory.dmp
        Filesize

        44KB

        Download
      • memory/2224-3-0x0000000000400000-0x0000000002D2B000-memory.dmp
        Filesize

        41.2MB

        Download
      • memory/2224-5-0x0000000000400000-0x0000000002D2B000-memory.dmp
        Filesize

        41.2MB

        Download
      • memory/2224-1-0x0000000000230000-0x0000000000330000-memory.dmp
        Filesize

        1024KB

        Download
      • memory/2536-34-0x0000000004290000-0x0000000004291000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2536-38-0x0000000002680000-0x0000000002690000-memory.dmp
        Filesize

        64KB

        Download
      • memory/2536-44-0x0000000002590000-0x00000000025A6000-memory.dmp
        Filesize

        88KB

        Download
      • memory/2536-33-0x0000000004290000-0x0000000004291000-memory.dmp
        Filesize

        4KB

        Download
      • memory/2712-42-0x0000000002ED0000-0x0000000002FD0000-memory.dmp
        Filesize

        1024KB

        Download
      • memory/2712-43-0x0000000000400000-0x0000000002D2B000-memory.dmp
        Filesize

        41.2MB

        Download
      • memory/2712-45-0x0000000000400000-0x0000000002D2B000-memory.dmp
        Filesize

        41.2MB

        Download