Analysis

  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-01-2024 05:34

General

  • Target

    toolspub2(1).exe

  • Size

    206KB

  • MD5

    2a62ea99f6e89fb1bcf249917cc87bfc

  • SHA1

    c5640703e1ed6276babbef5102dc247aaf3c17c8

  • SHA256

    ecbaeab79bb9ff98c691ffddfd29e59282af48d48a87fbe20cb94dc83c1c89f3

  • SHA512

    0a07d8b63555871cc339397ecad4e27cb0f75bf11ef66ac0c1070e06336a45936af70140f71bc635a01a218531955a6000906d4250d138ce09781c7e79717566

  • SSDEEP

    3072:Yp/htLJYeiJiiKnTa0/WxCExkGB4wYxRfHVvBL2A:+TLJYehe0/W8Qjn

Malware Config

Extracted

Family

smokeloader

Botnet

up3

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\toolspub2(1).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspub2(1).exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1500
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1500 -s 368
      2⤵
      • Program crash
      PID:3332
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1500 -ip 1500
    1⤵
      PID:4320
    • C:\Users\Admin\AppData\Local\Temp\B2F4.exe
      C:\Users\Admin\AppData\Local\Temp\B2F4.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:2940
      • 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:2356
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 1128
          3⤵
          • Program crash
          PID:232
    • C:\Users\Admin\AppData\Local\Temp\B7E7.exe
      C:\Users\Admin\AppData\Local\Temp\B7E7.exe
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
        "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2356 -ip 2356
      1⤵
        PID:3468

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\B2F4.exe

        Filesize

        91KB

        MD5

        68945a5d7d05b9e718d3150b0051133e

        SHA1

        99af734fdbc826081b13a7e5e3e2b1c2735e7290

        SHA256

        3f88f77ab14063a928fb382847937a1ae7b57bc4bbf200357c9ece670b2814f2

        SHA512

        d807e5f8b5f2b77237689ec9fcb11ef98b9c66c74cdc5ae71f6a4d6e2229db4460129b537d431ee78610a9d425cd6347711c3054b2d3a5d20258e4319221683a

      • C:\Users\Admin\AppData\Local\Temp\B2F4.exe

        Filesize

        96KB

        MD5

        1b83c1b65b55c9188ba5bf98d0ca12ca

        SHA1

        45302fcf4546e750c0e78d2d571ecc7ccc5d8f0a

        SHA256

        b7b25f9ad998a189cc980c415f36fe93e96e5e862a1319727299d7ee16fb7a67

        SHA512

        eef83555302a955d41f617959e52de21fcfd95717ba9b0907986cdf1e5ad61be43f2866a1d14125bbd1a721b8163affcf50b0755a59fe08abac6b6fd34275253

      • memory/1500-2-0x00000000004C0000-0x00000000004C9000-memory.dmp

        Filesize

        36KB

      • memory/1500-3-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB

      • memory/1500-7-0x0000000000400000-0x0000000000439000-memory.dmp

        Filesize

        228KB

      • memory/1500-1-0x0000000000610000-0x0000000000710000-memory.dmp

        Filesize

        1024KB

      • memory/2264-57-0x0000000072F80000-0x0000000073697000-memory.dmp

        Filesize

        7.1MB

      • memory/2264-63-0x0000000072F80000-0x0000000073697000-memory.dmp

        Filesize

        7.1MB

      • memory/2356-58-0x0000000001400000-0x00000000014C4000-memory.dmp

        Filesize

        784KB

      • memory/2356-61-0x0000000000D50000-0x0000000001183000-memory.dmp

        Filesize

        4.2MB

      • memory/2356-62-0x0000000001400000-0x00000000014C4000-memory.dmp

        Filesize

        784KB

      • memory/2356-26-0x0000000000D50000-0x0000000001184000-memory.dmp

        Filesize

        4.2MB

      • memory/2356-29-0x0000000001400000-0x00000000014C4000-memory.dmp

        Filesize

        784KB

      • memory/2356-27-0x0000000001400000-0x00000000014C4000-memory.dmp

        Filesize

        784KB

      • memory/2356-59-0x0000000004C60000-0x0000000004C62000-memory.dmp

        Filesize

        8KB

      • memory/2356-24-0x0000000000D50000-0x0000000001184000-memory.dmp

        Filesize

        4.2MB

      • memory/2940-23-0x0000000000910000-0x0000000000976000-memory.dmp

        Filesize

        408KB

      • memory/2940-14-0x0000000000010000-0x000000000006D000-memory.dmp

        Filesize

        372KB

      • memory/2940-17-0x0000000002640000-0x000000000264D000-memory.dmp

        Filesize

        52KB

      • memory/2940-32-0x0000000002820000-0x0000000002821000-memory.dmp

        Filesize

        4KB

      • memory/2940-31-0x0000000000910000-0x0000000000976000-memory.dmp

        Filesize

        408KB

      • memory/2940-18-0x0000000000910000-0x0000000000976000-memory.dmp

        Filesize

        408KB

      • memory/2940-20-0x0000000077A44000-0x0000000077A45000-memory.dmp

        Filesize

        4KB

      • memory/2940-21-0x0000000002800000-0x0000000002801000-memory.dmp

        Filesize

        4KB

      • memory/2940-22-0x0000000002830000-0x000000000283C000-memory.dmp

        Filesize

        48KB

      • memory/2940-16-0x0000000000910000-0x0000000000976000-memory.dmp

        Filesize

        408KB

      • memory/3432-4-0x0000000002B10000-0x0000000002B26000-memory.dmp

        Filesize

        88KB

      • memory/4932-38-0x00000000001D0000-0x0000000000766000-memory.dmp

        Filesize

        5.6MB

      • memory/4932-45-0x00000000001D0000-0x0000000000766000-memory.dmp

        Filesize

        5.6MB