Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    18-01-2024 03:17

General

  • Target

    a24f02aa70607beea6af7963d2a51a4d.exe

  • Size

    32KB

  • MD5

    a24f02aa70607beea6af7963d2a51a4d

  • SHA1

    fdbf0458799b50f52b231151d84c5d68f6e6da95

  • SHA256

    9a77f554fbc23a4d71cbb980b5dcdef80291fa70849430a929a1e1bb9cebc2dc

  • SHA512

    2d8d64931184e5d202e097157fc783ba6245b78374a1baefed1abc31a0458acc486f389447bd7cdc7ed2f38a3f91ecbced50923575233e470837790590c52222

  • SSDEEP

    768:OAUqYpNSIoKpDd1KM02kQhx4hOtFceWzYqvz0bOS:HLo8LKtd1PBkQD4UtFceWnz

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 8 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Disables taskbar notifications via registry modification
  • Disables use of System Restore points 1 TTPs
  • Sets file execution options in registry 2 TTPs 20 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks for any installed AV software in registry 1 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
  • NSIS installer 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • 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
  • NTFS ADS 2 IoCs
  • Runs regedit.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Deletes itself
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Users\Admin\AppData\Local\Temp\a24f02aa70607beea6af7963d2a51a4d.exe
      "C:\Users\Admin\AppData\Local\Temp\a24f02aa70607beea6af7963d2a51a4d.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2148
    • C:\Users\Admin\AppData\Local\Temp\BB82.exe
      C:\Users\Admin\AppData\Local\Temp\BB82.exe
      2⤵
      • 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:1924
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Modifies firewall policy service
        • Sets file execution options in registry
        • Checks BIOS information in registry
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops desktop.ini file(s)
        • 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
        • NTFS ADS
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2704
        • C:\Users\Admin\AppData\Local\Temp\915uyaw9uecyus_1.exe
          /suac
          4⤵
          • Modifies firewall policy service
          • Sets file execution options in registry
          • Executes dropped EXE
          • Checks for any installed AV software in registry
          • 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:680
          • C:\Windows\SysWOW64\regedit.exe
            "C:\Windows\SysWOW64\regedit.exe"
            5⤵
            • Modifies security service
            • Sets file execution options in registry
            • Sets service image path in registry
            • Runs regedit.exe
            • Suspicious use of AdjustPrivilegeToken
            PID:2640
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x1BB70478" /TR "C:\PROGRA~3\JAVAUP~1\915UYA~1.EXE" /RL HIGHEST
            5⤵
            • Creates scheduled task(s)
            PID:2828
    • C:\Users\Admin\AppData\Local\Temp\C8AD.exe
      C:\Users\Admin\AppData\Local\Temp\C8AD.exe
      2⤵
      • Executes dropped EXE
      PID:2600
  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1172
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {E549879A-C9D9-4000-A17B-67F2BB1292C0} S-1-5-21-452311807-3713411997-1028535425-1000:OZEMQECW\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2920
      • C:\Users\Admin\AppData\Roaming\bhrevih
        C:\Users\Admin\AppData\Roaming\bhrevih
        2⤵
        • Executes dropped EXE
        • Checks SCSI registry key(s)
        • Suspicious behavior: MapViewOfSection
        PID:1932

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\BB82.exe

      Filesize

      360KB

      MD5

      80c413180b6bd0dd664adc4e0665b494

      SHA1

      e791e4a3391fc6b7bcb58399cd4fa3c52a06b940

      SHA256

      6d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880

      SHA512

      347f4ae6f308b37d055a6177478e45ab3838d7020abed70c7aa138d2c3771e709de204da8550aebdcaa6139d869dc7328cc7e645c4dd48d1066f9ad70225644a

    • C:\Users\Admin\AppData\Local\Temp\C8AD.exe

      Filesize

      2.6MB

      MD5

      ed7de856e3a3e88e8b6f6ac4ce19d7df

      SHA1

      94e46301f54289278ced2209afd796123f9d69e1

      SHA256

      d647cd1327b67fb02cc8f3a31b6c328fca027d0eba95b577057211411d0ed78d

      SHA512

      ce427f60b6221c9be6b5dcbd48efa37497d770bc13c3977247f80f5bee8005a87926c402d362c07d0fa91d686339093b4139fcc74aa7f2488eb20951c73554ae

    • C:\Users\Admin\AppData\Local\Temp\C8AD.exe

      Filesize

      1.5MB

      MD5

      eeed08b4857933e0bc4121b01ead19ce

      SHA1

      d076c58fd2ee24024f372e505a9c38e3ccd21baa

      SHA256

      30481baaa59ef915fe532ce02b46ecc7fdce4a4baae6a002f9743a2c5931b48f

      SHA512

      84612737cd90bcda488cb5177ea4d6acc8616f5e25808be7b84415fe193ce197aee6ade3515d4ba443dfb6550be13f480acf47b5ad975c3593ce7a9c292cfca9

    • C:\Users\Admin\AppData\Local\Temp\C8AD.exe

      Filesize

      481KB

      MD5

      bb7625ea5767c2bd92a3952e7516633a

      SHA1

      e2d1e19f34a466de2ce64390087f27c8a511e23f

      SHA256

      0f39fc5b502cd1d3ff4359f823bb923433c43f59eefa35574d4b37042b174d6e

      SHA512

      af8f9e3224e8ce78b4c242f79332240353ab26b2bee32c5295c479e41c9adda7f06021d43f6da0e6da140f09af69fde3b6b9596ddef6790fda1fb95fad095aeb

    • C:\Users\Admin\AppData\Roaming\bhrevih

      Filesize

      32KB

      MD5

      a24f02aa70607beea6af7963d2a51a4d

      SHA1

      fdbf0458799b50f52b231151d84c5d68f6e6da95

      SHA256

      9a77f554fbc23a4d71cbb980b5dcdef80291fa70849430a929a1e1bb9cebc2dc

      SHA512

      2d8d64931184e5d202e097157fc783ba6245b78374a1baefed1abc31a0458acc486f389447bd7cdc7ed2f38a3f91ecbced50923575233e470837790590c52222

    • memory/680-81-0x0000000000310000-0x0000000000316000-memory.dmp

      Filesize

      24KB

    • memory/680-85-0x00000000002A0000-0x0000000000306000-memory.dmp

      Filesize

      408KB

    • memory/680-83-0x0000000001EC0000-0x0000000001ECC000-memory.dmp

      Filesize

      48KB

    • memory/680-82-0x00000000002A0000-0x0000000000306000-memory.dmp

      Filesize

      408KB

    • memory/680-104-0x0000000000010000-0x000000000006D000-memory.dmp

      Filesize

      372KB

    • memory/680-106-0x0000000000310000-0x0000000000316000-memory.dmp

      Filesize

      24KB

    • memory/680-105-0x00000000002A0000-0x0000000000306000-memory.dmp

      Filesize

      408KB

    • memory/680-80-0x00000000002A0000-0x0000000000306000-memory.dmp

      Filesize

      408KB

    • memory/1204-55-0x00000000772F1000-0x00000000772F2000-memory.dmp

      Filesize

      4KB

    • memory/1204-86-0x0000000002250000-0x0000000002256000-memory.dmp

      Filesize

      24KB

    • memory/1204-1-0x00000000029F0000-0x0000000002A06000-memory.dmp

      Filesize

      88KB

    • memory/1204-110-0x0000000002A20000-0x0000000002A36000-memory.dmp

      Filesize

      88KB

    • memory/1924-32-0x0000000000440000-0x0000000000441000-memory.dmp

      Filesize

      4KB

    • memory/1924-19-0x0000000077490000-0x0000000077491000-memory.dmp

      Filesize

      4KB

    • memory/1924-15-0x0000000000010000-0x000000000006D000-memory.dmp

      Filesize

      372KB

    • memory/1924-16-0x00000000003D0000-0x0000000000436000-memory.dmp

      Filesize

      408KB

    • memory/1924-23-0x0000000001EF0000-0x0000000001EFC000-memory.dmp

      Filesize

      48KB

    • memory/1924-17-0x0000000000290000-0x0000000000291000-memory.dmp

      Filesize

      4KB

    • memory/1924-18-0x00000000002A0000-0x00000000002AD000-memory.dmp

      Filesize

      52KB

    • memory/1924-21-0x0000000000370000-0x0000000000371000-memory.dmp

      Filesize

      4KB

    • memory/1924-24-0x00000000003D0000-0x0000000000436000-memory.dmp

      Filesize

      408KB

    • memory/1924-20-0x00000000003D0000-0x0000000000436000-memory.dmp

      Filesize

      408KB

    • memory/1924-46-0x00000000003D0000-0x0000000000436000-memory.dmp

      Filesize

      408KB

    • memory/1924-47-0x0000000000290000-0x0000000000291000-memory.dmp

      Filesize

      4KB

    • memory/1932-113-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/1932-109-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/2148-0-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/2148-2-0x0000000000400000-0x0000000000409000-memory.dmp

      Filesize

      36KB

    • memory/2600-48-0x0000000000CA0000-0x0000000001236000-memory.dmp

      Filesize

      5.6MB

    • memory/2600-50-0x0000000000CA0000-0x0000000001236000-memory.dmp

      Filesize

      5.6MB

    • memory/2640-102-0x0000000000B70000-0x0000000000BD5000-memory.dmp

      Filesize

      404KB

    • memory/2640-98-0x0000000000B70000-0x0000000000BD6000-memory.dmp

      Filesize

      408KB

    • memory/2640-99-0x0000000000B70000-0x0000000000BD6000-memory.dmp

      Filesize

      408KB

    • memory/2640-101-0x0000000000090000-0x000000000009B000-memory.dmp

      Filesize

      44KB

    • memory/2704-28-0x0000000000250000-0x0000000000314000-memory.dmp

      Filesize

      784KB

    • memory/2704-59-0x00000000772A0000-0x0000000077449000-memory.dmp

      Filesize

      1.7MB

    • memory/2704-60-0x0000000000250000-0x0000000000314000-memory.dmp

      Filesize

      784KB

    • memory/2704-61-0x0000000000190000-0x0000000000196000-memory.dmp

      Filesize

      24KB

    • memory/2704-62-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-63-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-64-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-65-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-66-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-68-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-67-0x0000000000250000-0x0000000000314000-memory.dmp

      Filesize

      784KB

    • memory/2704-58-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-57-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-56-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-54-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-53-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-52-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-77-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-87-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-97-0x0000000000190000-0x0000000000196000-memory.dmp

      Filesize

      24KB

    • memory/2704-96-0x0000000000250000-0x0000000000314000-memory.dmp

      Filesize

      784KB

    • memory/2704-51-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-35-0x0000000000250000-0x0000000000314000-memory.dmp

      Filesize

      784KB

    • memory/2704-38-0x00000000003F0000-0x00000000003FC000-memory.dmp

      Filesize

      48KB

    • memory/2704-39-0x0000000000250000-0x0000000000314000-memory.dmp

      Filesize

      784KB

    • memory/2704-36-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-34-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-33-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-30-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-29-0x0000000000190000-0x0000000000196000-memory.dmp

      Filesize

      24KB

    • memory/2704-27-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB

    • memory/2704-26-0x0000000077480000-0x0000000077601000-memory.dmp

      Filesize

      1.5MB