Analysis

  • max time kernel
    284s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    17-05-2024 00:01

General

  • Target

    bf5a4198df4893e6c4f7c59876a06d7feaaf897b2060dc22357aa1d59468ccfc.exe

  • Size

    224KB

  • MD5

    300ec4cb5fb7349183bf02c31bc67df3

  • SHA1

    6e42195f6cc83e15f2bc23e3c10acf43b2cca695

  • SHA256

    bf5a4198df4893e6c4f7c59876a06d7feaaf897b2060dc22357aa1d59468ccfc

  • SHA512

    e14bd68a87577763ebe4bd9b45cc1df5e90f4c134e5c031f0236b34cff35c72ae33c83ecc0865a340ec08ca9c5f767f0dc27c270829edd82b40f9e5c94d7488d

  • SSDEEP

    3072:yCoM+wvHbJKfpnxdRV+qBvExEN/G8S8vjM1J3aKV7ZKx:KwPkddVQxMe8S8vj6an

Malware Config

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.

  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 12 IoCs
  • Suspicious use of FindShellTrayWindow 32 IoCs
  • Suspicious use of SendNotifyMessage 25 IoCs
  • Suspicious use of WriteProcessMemory 12 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\bf5a4198df4893e6c4f7c59876a06d7feaaf897b2060dc22357aa1d59468ccfc.exe
    "C:\Users\Admin\AppData\Local\Temp\bf5a4198df4893e6c4f7c59876a06d7feaaf897b2060dc22357aa1d59468ccfc.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2008
  • C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\75EB.bat" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2676
    • C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
      2⤵
        PID:2944
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\8670.bat" "
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2408
      • C:\Windows\system32\reg.exe
        reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
        2⤵
          PID:2480
      • 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:1364

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Persistence

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Privilege Escalation

      Boot or Logon Autostart Execution

      1
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Defense Evasion

      Modify Registry

      1
      T1112

      Discovery

      Query Registry

      2
      T1012

      Peripheral Device Discovery

      1
      T1120

      System Information Discovery

      1
      T1082

      Command and Control

      Web Service

      1
      T1102

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\75EB.bat
        Filesize

        77B

        MD5

        55cc761bf3429324e5a0095cab002113

        SHA1

        2cc1ef4542a4e92d4158ab3978425d517fafd16d

        SHA256

        d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

        SHA512

        33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

      • memory/1204-2-0x0000000002540000-0x0000000002556000-memory.dmp
        Filesize

        88KB

      • memory/1204-30-0x0000000002520000-0x0000000002521000-memory.dmp
        Filesize

        4KB

      • memory/1364-35-0x00000000029D0000-0x00000000029E0000-memory.dmp
        Filesize

        64KB

      • memory/2008-1-0x0000000000400000-0x000000000078F000-memory.dmp
        Filesize

        3.6MB

      • memory/2008-6-0x0000000000400000-0x000000000078F000-memory.dmp
        Filesize

        3.6MB