Analysis

  • max time kernel
    160s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2024, 04:17

General

  • Target
    toolspub1.exe
  • Size 300KB
  • Sample240107-ewdbaaebej
  • SHA256 2739b41aab3ff3cc0727ada7ad04162f0379ef151c7d4b4296e963a2a74891c5
  • MD5 SHA1 SHA512 SSDEEP

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 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 3 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 3 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Deletes itself
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1260
    • C:\Users\Admin\AppData\Local\Temp\toolspub1.exe
      "C:\Users\Admin\AppData\Local\Temp\toolspub1.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1420
    • C:\Users\Admin\AppData\Local\Temp\28F4.exe
      C:\Users\Admin\AppData\Local\Temp\28F4.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:2572
      • 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:2920
        • C:\Users\Admin\AppData\Local\Temp\q1y973591ki_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:1652
          • 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:1324
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x1BB70478" /TR "C:\PROGRA~3\JAVAUP~1\Q1Y973~1.EXE" /RL HIGHEST
            5⤵
            • Creates scheduled task(s)
            PID:2232
    • C:\Users\Admin\AppData\Local\Temp\3F81.exe
      C:\Users\Admin\AppData\Local\Temp\3F81.exe
      2⤵
      • Executes dropped EXE
      PID:2616
  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1188
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:1656

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            28F4.exe

            • Path C:\Users\Admin\AppData\Local\Temp\28F4.exe
            • Size 360KB
            • SHA256 6d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880
            • MD5 SHA1 SHA512 SSDEEP

            3F81.exe

            • Path C:\Users\Admin\AppData\Local\Temp\3F81.exe
            • Size 1.7MB
            • SHA256 2acd884ea594b142480c680afa3f9a67c8f4a0bf34a38e7a78921241e712142a
            • MD5 SHA1 SHA512 SSDEEP

            3F81.exe

            • Path C:\Users\Admin\AppData\Local\Temp\3F81.exe
            • Size 2.1MB
            • SHA256 ad705bd420c87d4b513a735e7bf50f0b82f37fcceb15df926b6dd3a5214cf9ff
            • MD5 SHA1 SHA512 SSDEEP

            3F81.exe

            • Path C:\Users\Admin\AppData\Local\Temp\3F81.exe
            • Size 3.0MB
            • SHA256 3037bebc267a547680568378cebdc27e1c7f2e18f55dfaeaed0e30074f091dba
            • MD5 SHA1 SHA512 SSDEEP

            suchhrb

            • Path C:\Users\Admin\AppData\Roaming\suchhrb
            • Size 300KB
            • SHA256 2739b41aab3ff3cc0727ada7ad04162f0379ef151c7d4b4296e963a2a74891c5
            • MD5 SHA1 SHA512 SSDEEP

            q1y973591ki_1.exe

            • Path \Users\Admin\AppData\Local\Temp\q1y973591ki_1.exe
            • Size 320KB
            • SHA256 6ea74871494fc5653fcb8e53de3920d4ceee992c42c5dd69ea87f3cadca513b5
            • MD5 SHA1 SHA512 SSDEEP

            memory/1260-60-0x0000000076DF1000-0x0000000076DF2000-memory.dmp

            memory/1260-4-0x00000000025E0000-0x00000000025F6000-memory.dmp

            memory/1260-114-0x00000000025C0000-0x00000000025C1000-memory.dmp

            memory/1324-102-0x00000000002D0000-0x0000000000394000-memory.dmp

            memory/1324-100-0x0000000000120000-0x0000000000186000-memory.dmp

            memory/1324-109-0x0000000000090000-0x000000000009B000-memory.dmp

            memory/1324-104-0x0000000000120000-0x0000000000186000-memory.dmp

            memory/1324-103-0x0000000076FAD000-0x0000000076FAE000-memory.dmp

            memory/1324-108-0x0000000000120000-0x0000000000185000-memory.dmp

            memory/1324-101-0x00000000002D0000-0x0000000000394000-memory.dmp

            memory/1420-3-0x0000000000400000-0x0000000000451000-memory.dmp

            memory/1420-5-0x0000000000400000-0x0000000000451000-memory.dmp

            memory/1420-1-0x0000000000580000-0x0000000000680000-memory.dmp

            memory/1420-2-0x0000000000220000-0x0000000000229000-memory.dmp

            memory/1652-98-0x0000000000320000-0x0000000000326000-memory.dmp

            memory/1652-95-0x0000000001C80000-0x0000000001CE6000-memory.dmp

            memory/1652-94-0x0000000000010000-0x000000000006D000-memory.dmp

            memory/1652-92-0x0000000001C80000-0x0000000001CE6000-memory.dmp

            memory/1652-90-0x0000000001E00000-0x0000000001E0C000-memory.dmp

            memory/1652-88-0x0000000000320000-0x0000000000326000-memory.dmp

            memory/1652-89-0x0000000001C80000-0x0000000001CE6000-memory.dmp

            memory/1652-87-0x0000000001C80000-0x0000000001CE6000-memory.dmp

            memory/1656-93-0x0000000076DF1000-0x0000000076DF2000-memory.dmp

            memory/2572-32-0x0000000076F90000-0x0000000076F91000-memory.dmp

            memory/2572-30-0x0000000000290000-0x0000000000291000-memory.dmp

            memory/2572-18-0x0000000000010000-0x000000000006D000-memory.dmp

            memory/2572-50-0x0000000000330000-0x0000000000396000-memory.dmp

            memory/2572-26-0x0000000000010000-0x000000000006D000-memory.dmp

            memory/2572-33-0x0000000000330000-0x0000000000396000-memory.dmp

            memory/2572-29-0x0000000000330000-0x0000000000396000-memory.dmp

            memory/2572-48-0x0000000001DA0000-0x0000000001DA1000-memory.dmp

            memory/2572-31-0x00000000002A0000-0x00000000002AD000-memory.dmp

            memory/2572-34-0x0000000000550000-0x0000000000551000-memory.dmp

            memory/2572-36-0x0000000001DB0000-0x0000000001DBC000-memory.dmp

            memory/2572-37-0x0000000000330000-0x0000000000396000-memory.dmp

            memory/2616-28-0x00000000001F0000-0x0000000000786000-memory.dmp

            memory/2616-25-0x00000000001F0000-0x0000000000786000-memory.dmp

            memory/2920-62-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-42-0x00000000001A0000-0x0000000000264000-memory.dmp

            memory/2920-65-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-66-0x0000000076DA0000-0x0000000076F49000-memory.dmp

            memory/2920-67-0x00000000003A0000-0x00000000003A6000-memory.dmp

            memory/2920-68-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-69-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-70-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-71-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-72-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-73-0x00000000001A0000-0x0000000000264000-memory.dmp

            memory/2920-74-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-75-0x00000000001A0000-0x0000000000264000-memory.dmp

            memory/2920-63-0x00000000001A0000-0x0000000000264000-memory.dmp

            memory/2920-85-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-45-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-44-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-41-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-43-0x00000000003A0000-0x00000000003A6000-memory.dmp

            memory/2920-64-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-40-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-39-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-61-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-51-0x00000000004B0000-0x00000000004BC000-memory.dmp

            memory/2920-96-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-59-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-58-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-57-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-56-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-55-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-53-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-54-0x00000000001A0000-0x0000000000264000-memory.dmp

            memory/2920-47-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-49-0x00000000001A0000-0x0000000000264000-memory.dmp

            memory/2920-118-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-119-0x0000000076F80000-0x0000000077101000-memory.dmp

            memory/2920-120-0x0000000076F80000-0x0000000077101000-memory.dmp