Analysis

  • max time kernel
    147s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2023, 16:38

General

  • Target

    f560e93999b255b8fbe3c9c0ffcf95cc.exe

  • Size

    270KB

  • MD5

    f560e93999b255b8fbe3c9c0ffcf95cc

  • SHA1

    024b0b139a9ba794a0d4ec425737a8ec46bdd3db

  • SHA256

    ad7b0dc7828c17e57dfddd3b5a62a130f33014368d97b78433be9ea8b4dad9de

  • SHA512

    43d3399923df4a78ee3468b00414b0fef285d58e020b75d380afade979036eb1c6811ce3cdb9c931162ccc18c55d03aecc15b622ca884b706e46ab3d7578a447

  • SSDEEP

    6144:60r2hLye16UsBRDw9qg1ePtPD2HGXpHgLvq:Z2hLB1XsBRrg1eND1dgLv

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

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 2 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
  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 50 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:1260
    • C:\Users\Admin\AppData\Local\Temp\f560e93999b255b8fbe3c9c0ffcf95cc.exe
      "C:\Users\Admin\AppData\Local\Temp\f560e93999b255b8fbe3c9c0ffcf95cc.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2028
    • C:\Users\Admin\AppData\Local\Temp\DCB8.exe
      C:\Users\Admin\AppData\Local\Temp\DCB8.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:2532
      • 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:2644
        • C:\Users\Admin\AppData\Local\Temp\9momeyc5o_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:1892
          • 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:1764
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x1BB70478" /TR "C:\PROGRA~3\JAVAUP~1\9MOMEY~1.EXE" /RL HIGHEST
            5⤵
            • Creates scheduled task(s)
            PID:2336
  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1220
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:2724

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\DCB8.exe

              Filesize

              360KB

              MD5

              e5c190fbfeeaad6ccccd410e006aabf5

              SHA1

              4241efe078d15132644015724fa2e1682aa70012

              SHA256

              a20dcba5fd3bf777bc953aa6a248883c1a2a9536d4dc2d1296fc3ce061080509

              SHA512

              3fdf563cef22e7ec81658ab9597c173371f72a2d00dd9126a443b7766a12bcb08b26bf6caed6c14a5a92917c04cf79f323cc6899c07f5b29f4feb4e5f2fc579f

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

              Filesize

              270KB

              MD5

              f560e93999b255b8fbe3c9c0ffcf95cc

              SHA1

              024b0b139a9ba794a0d4ec425737a8ec46bdd3db

              SHA256

              ad7b0dc7828c17e57dfddd3b5a62a130f33014368d97b78433be9ea8b4dad9de

              SHA512

              43d3399923df4a78ee3468b00414b0fef285d58e020b75d380afade979036eb1c6811ce3cdb9c931162ccc18c55d03aecc15b622ca884b706e46ab3d7578a447

            • memory/1260-83-0x0000000001D30000-0x0000000001D31000-memory.dmp

              Filesize

              4KB

            • memory/1260-52-0x00000000777B1000-0x00000000777B2000-memory.dmp

              Filesize

              4KB

            • memory/1260-4-0x0000000002C10000-0x0000000002C25000-memory.dmp

              Filesize

              84KB

            • memory/1260-61-0x0000000001D50000-0x0000000001D56000-memory.dmp

              Filesize

              24KB

            • memory/1764-91-0x0000000000300000-0x0000000000365000-memory.dmp

              Filesize

              404KB

            • memory/1764-88-0x0000000000300000-0x0000000000366000-memory.dmp

              Filesize

              408KB

            • memory/1764-89-0x0000000000300000-0x0000000000366000-memory.dmp

              Filesize

              408KB

            • memory/1764-92-0x0000000000090000-0x000000000009B000-memory.dmp

              Filesize

              44KB

            • memory/1892-78-0x0000000000420000-0x0000000000426000-memory.dmp

              Filesize

              24KB

            • memory/1892-79-0x0000000001D00000-0x0000000001D66000-memory.dmp

              Filesize

              408KB

            • memory/1892-95-0x0000000001D00000-0x0000000001D66000-memory.dmp

              Filesize

              408KB

            • memory/1892-94-0x0000000000010000-0x000000000006D000-memory.dmp

              Filesize

              372KB

            • memory/1892-96-0x0000000001E80000-0x0000000001E8C000-memory.dmp

              Filesize

              48KB

            • memory/2028-1-0x0000000000270000-0x0000000000370000-memory.dmp

              Filesize

              1024KB

            • memory/2028-5-0x0000000000400000-0x0000000002B4E000-memory.dmp

              Filesize

              39.3MB

            • memory/2028-3-0x0000000000400000-0x0000000002B4E000-memory.dmp

              Filesize

              39.3MB

            • memory/2028-2-0x00000000001B0000-0x00000000001B9000-memory.dmp

              Filesize

              36KB

            • memory/2532-19-0x0000000000460000-0x00000000004C6000-memory.dmp

              Filesize

              408KB

            • memory/2532-39-0x0000000000460000-0x00000000004C6000-memory.dmp

              Filesize

              408KB

            • memory/2532-36-0x00000000005B0000-0x00000000005B1000-memory.dmp

              Filesize

              4KB

            • memory/2532-37-0x0000000000290000-0x0000000000296000-memory.dmp

              Filesize

              24KB

            • memory/2532-27-0x0000000000290000-0x0000000000296000-memory.dmp

              Filesize

              24KB

            • memory/2532-26-0x0000000000460000-0x00000000004C6000-memory.dmp

              Filesize

              408KB

            • memory/2532-25-0x00000000005D0000-0x00000000005DC000-memory.dmp

              Filesize

              48KB

            • memory/2532-24-0x0000000000590000-0x0000000000591000-memory.dmp

              Filesize

              4KB

            • memory/2532-22-0x00000000002A0000-0x00000000002AD000-memory.dmp

              Filesize

              52KB

            • memory/2532-23-0x0000000077950000-0x0000000077951000-memory.dmp

              Filesize

              4KB

            • memory/2532-21-0x0000000000460000-0x00000000004C6000-memory.dmp

              Filesize

              408KB

            • memory/2532-18-0x0000000000010000-0x000000000006D000-memory.dmp

              Filesize

              372KB

            • memory/2644-48-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-64-0x00000000002E0000-0x00000000002E6000-memory.dmp

              Filesize

              24KB

            • memory/2644-49-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-50-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-51-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-46-0x00000000001B0000-0x0000000000274000-memory.dmp

              Filesize

              784KB

            • memory/2644-53-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-54-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-55-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-56-0x0000000077760000-0x0000000077909000-memory.dmp

              Filesize

              1.7MB

            • memory/2644-57-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-58-0x00000000001B0000-0x0000000000274000-memory.dmp

              Filesize

              784KB

            • memory/2644-59-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-60-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-45-0x00000000001B0000-0x0000000000274000-memory.dmp

              Filesize

              784KB

            • memory/2644-63-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-62-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-47-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-65-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-74-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-77-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-40-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-41-0x00000000001B0000-0x0000000000274000-memory.dmp

              Filesize

              784KB

            • memory/2644-81-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-44-0x00000000005B0000-0x00000000005BC000-memory.dmp

              Filesize

              48KB

            • memory/2644-87-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-42-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-38-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-31-0x00000000001B0000-0x0000000000274000-memory.dmp

              Filesize

              784KB

            • memory/2644-32-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-34-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-33-0x00000000002E0000-0x00000000002E6000-memory.dmp

              Filesize

              24KB

            • memory/2644-30-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-29-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB

            • memory/2644-98-0x0000000077940000-0x0000000077AC1000-memory.dmp

              Filesize

              1.5MB