Analysis

  • max time kernel
    104s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-01-2024 16:24

General

  • Target

    26d9592bdfc0e1db9b25e7c3b6d232098bbd7a7ebe8c370df837002adc0f66e4.exe

  • Size

    312KB

  • MD5

    75505a5eb3732fa2c8ed637ab7514b0f

  • SHA1

    74cf43c52a315641946f39fd7bf4865d2d7ff410

  • SHA256

    26d9592bdfc0e1db9b25e7c3b6d232098bbd7a7ebe8c370df837002adc0f66e4

  • SHA512

    21f2f8cece51837f53ffb630344417026f3cda4de62f058547d4d8287878a70222b2d18807d0608f9af1d7e795c063f32eff7f12a4420a09c3a60a9137a6ff82

  • SSDEEP

    3072:7jMaOxMqALKoRSVVjqsPMBU5xR1Tst0IsYcJPCXEz5/siT9QHHARTYFkc:7qx0L1RSVVjEBQZst0I+wCRT+bFk

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 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\26d9592bdfc0e1db9b25e7c3b6d232098bbd7a7ebe8c370df837002adc0f66e4.exe
    "C:\Users\Admin\AppData\Local\Temp\26d9592bdfc0e1db9b25e7c3b6d232098bbd7a7ebe8c370df837002adc0f66e4.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 368
      2⤵
      • Program crash
      PID:952
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1988 -ip 1988
    1⤵
      PID:1204
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
      • 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:3324
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 1136
        2⤵
        • Program crash
        PID:5612
    • C:\Users\Admin\AppData\Local\Temp\C091.exe
      C:\Users\Admin\AppData\Local\Temp\C091.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:440
    • C:\Users\Admin\AppData\Local\Temp\C526.exe
      C:\Users\Admin\AppData\Local\Temp\C526.exe
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:5188
      • C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
        "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3324 -ip 3324
      1⤵
        PID:4380

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\C091.exe

        Filesize

        360KB

        MD5

        80c413180b6bd0dd664adc4e0665b494

        SHA1

        e791e4a3391fc6b7bcb58399cd4fa3c52a06b940

        SHA256

        6d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880

        SHA512

        347f4ae6f308b37d055a6177478e45ab3838d7020abed70c7aa138d2c3771e709de204da8550aebdcaa6139d869dc7328cc7e645c4dd48d1066f9ad70225644a

      • memory/440-15-0x0000000000010000-0x000000000006D000-memory.dmp

        Filesize

        372KB

      • memory/440-18-0x0000000002290000-0x00000000022F6000-memory.dmp

        Filesize

        408KB

      • memory/440-34-0x0000000002290000-0x00000000022F6000-memory.dmp

        Filesize

        408KB

      • memory/440-24-0x0000000002290000-0x00000000022F6000-memory.dmp

        Filesize

        408KB

      • memory/440-23-0x0000000002830000-0x000000000283C000-memory.dmp

        Filesize

        48KB

      • memory/440-21-0x0000000077394000-0x0000000077395000-memory.dmp

        Filesize

        4KB

      • memory/440-20-0x0000000002640000-0x000000000264D000-memory.dmp

        Filesize

        52KB

      • memory/440-17-0x0000000002290000-0x00000000022F6000-memory.dmp

        Filesize

        408KB

      • memory/440-22-0x0000000002800000-0x0000000002801000-memory.dmp

        Filesize

        4KB

      • memory/1988-3-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/1988-8-0x0000000000400000-0x000000000086F000-memory.dmp

        Filesize

        4.4MB

      • memory/1988-1-0x0000000000A40000-0x0000000000B40000-memory.dmp

        Filesize

        1024KB

      • memory/1988-2-0x00000000009D0000-0x00000000009D9000-memory.dmp

        Filesize

        36KB

      • memory/3324-29-0x0000000001000000-0x00000000010C4000-memory.dmp

        Filesize

        784KB

      • memory/3324-31-0x0000000001000000-0x00000000010C4000-memory.dmp

        Filesize

        784KB

      • memory/3324-27-0x0000000000810000-0x0000000000C44000-memory.dmp

        Filesize

        4.2MB

      • memory/3324-32-0x0000000001390000-0x0000000001391000-memory.dmp

        Filesize

        4KB

      • memory/3324-25-0x0000000000810000-0x0000000000C44000-memory.dmp

        Filesize

        4.2MB

      • memory/3324-60-0x00000000047E0000-0x00000000047E2000-memory.dmp

        Filesize

        8KB

      • memory/3324-59-0x0000000001000000-0x00000000010C4000-memory.dmp

        Filesize

        784KB

      • memory/3324-62-0x0000000000810000-0x0000000000C43000-memory.dmp

        Filesize

        4.2MB

      • memory/3324-63-0x0000000001000000-0x00000000010C4000-memory.dmp

        Filesize

        784KB

      • memory/3520-5-0x0000000003060000-0x0000000003076000-memory.dmp

        Filesize

        88KB

      • memory/5188-40-0x0000000000BD0000-0x0000000001166000-memory.dmp

        Filesize

        5.6MB

      • memory/5188-47-0x0000000000BD0000-0x0000000001166000-memory.dmp

        Filesize

        5.6MB