Analysis

  • max time kernel
    132s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-01-2024 05:34

General

  • Target

    toolspub1(2).exe

  • Size

    198KB

  • MD5

    ac27d06e4345f34cfa44e08a860d88f1

  • SHA1

    c5575397ff27d7f3a22ed9e0537e060d33bb4890

  • SHA256

    d47be58f4a767dcfe803a43a184158fdb7f0bbc379c4519e435540f9224c82dc

  • SHA512

    8cae7d2d4208a68b74ad3bab556d4b6b459058fcc7e8b8a364fb4a2e0a1ee55ca43274e509a9f4da208ac6c072fc4d2d119e52cfc966538d737f9410441025d4

  • SSDEEP

    3072:dE/htLJYeiJiiKDuSRpXxLNjwakyBvwyYR2QvBL2A:yTLJYeF9LXh7U+

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • BetaBot

    Beta Bot is a Trojan that infects computers and disables Antivirus.

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Sets file execution options in registry 2 TTPs 4 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of UnmapMainImage 1 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\toolspub1(2).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspub1(2).exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1624
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 368
      2⤵
      • Program crash
      PID:712
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1624 -ip 1624
    1⤵
      PID:3856
    • C:\Users\Admin\AppData\Local\Temp\96D1.exe
      C:\Users\Admin\AppData\Local\Temp\96D1.exe
      1⤵
      • Sets file execution options in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Checks processor information in registry
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1316
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        2⤵
        • Modifies firewall policy service
        • Sets file execution options in registry
        • Checks BIOS information in registry
        • Adds Run key to start application
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Checks processor information in registry
        • Enumerates system info in registry
        • Modifies Internet Explorer Protected Mode
        • Modifies Internet Explorer Protected Mode Banner
        • Modifies Internet Explorer settings
        • Suspicious use of AdjustPrivilegeToken
        PID:3136
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3136 -s 1108
          3⤵
          • Program crash
          PID:3832
    • C:\Users\Admin\AppData\Local\Temp\9D0C.exe
      C:\Users\Admin\AppData\Local\Temp\9D0C.exe
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
        "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:3188
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3136 -ip 3136
      1⤵
        PID:976

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\96D1.exe

        Filesize

        360KB

        MD5

        80c413180b6bd0dd664adc4e0665b494

        SHA1

        e791e4a3391fc6b7bcb58399cd4fa3c52a06b940

        SHA256

        6d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880

        SHA512

        347f4ae6f308b37d055a6177478e45ab3838d7020abed70c7aa138d2c3771e709de204da8550aebdcaa6139d869dc7328cc7e645c4dd48d1066f9ad70225644a

      • memory/1316-14-0x0000000000010000-0x000000000006D000-memory.dmp

        Filesize

        372KB

      • memory/1316-33-0x0000000002280000-0x00000000022E6000-memory.dmp

        Filesize

        408KB

      • memory/1316-16-0x0000000002280000-0x00000000022E6000-memory.dmp

        Filesize

        408KB

      • memory/1316-17-0x0000000002640000-0x000000000264D000-memory.dmp

        Filesize

        52KB

      • memory/1316-19-0x0000000002280000-0x00000000022E6000-memory.dmp

        Filesize

        408KB

      • memory/1316-23-0x0000000002280000-0x00000000022E6000-memory.dmp

        Filesize

        408KB

      • memory/1316-22-0x0000000002830000-0x000000000283C000-memory.dmp

        Filesize

        48KB

      • memory/1316-21-0x0000000002800000-0x0000000002801000-memory.dmp

        Filesize

        4KB

      • memory/1316-18-0x0000000077CD4000-0x0000000077CD5000-memory.dmp

        Filesize

        4KB

      • memory/1624-3-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/1624-7-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/1624-2-0x0000000000510000-0x0000000000519000-memory.dmp

        Filesize

        36KB

      • memory/1624-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

        Filesize

        1024KB

      • memory/3136-26-0x00000000007D0000-0x0000000000C04000-memory.dmp

        Filesize

        4.2MB

      • memory/3136-62-0x00000000007D0000-0x0000000000C03000-memory.dmp

        Filesize

        4.2MB

      • memory/3136-30-0x0000000000D10000-0x0000000000DD4000-memory.dmp

        Filesize

        784KB

      • memory/3136-24-0x00000000007D0000-0x0000000000C04000-memory.dmp

        Filesize

        4.2MB

      • memory/3136-31-0x0000000002F40000-0x0000000002F41000-memory.dmp

        Filesize

        4KB

      • memory/3136-59-0x0000000000D10000-0x0000000000DD4000-memory.dmp

        Filesize

        784KB

      • memory/3136-28-0x0000000000D10000-0x0000000000DD4000-memory.dmp

        Filesize

        784KB

      • memory/3136-60-0x00000000047A0000-0x00000000047A2000-memory.dmp

        Filesize

        8KB

      • memory/3136-63-0x0000000000D10000-0x0000000000DD4000-memory.dmp

        Filesize

        784KB

      • memory/3188-64-0x0000000073220000-0x0000000073937000-memory.dmp

        Filesize

        7.1MB

      • memory/3188-58-0x0000000073220000-0x0000000073937000-memory.dmp

        Filesize

        7.1MB

      • memory/3372-46-0x0000000000560000-0x0000000000AF6000-memory.dmp

        Filesize

        5.6MB

      • memory/3372-39-0x0000000000560000-0x0000000000AF6000-memory.dmp

        Filesize

        5.6MB

      • memory/3412-4-0x0000000002F00000-0x0000000002F16000-memory.dmp

        Filesize

        88KB