Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    16/01/2024, 01:24

General

  • Target
    toolspub2.exe
  • Size 255KB
  • Sample240116-bsdabsadej
  • SHA256 461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a
  • MD5 SHA1 SHA512 SSDEEP

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 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 60 IoCs
  • Suspicious use of WriteProcessMemory 54 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.exe
    "C:\Users\Admin\AppData\Local\Temp\toolspub2.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2444
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Deletes itself
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\78B9.exe
      C:\Users\Admin\AppData\Local\Temp\78B9.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:2396
      • 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:2780
        • C:\Users\Admin\AppData\Local\Temp\95a7cw97ggq5_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:320
          • 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:900
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x1BB70478" /TR "C:\PROGRA~3\JAVAUP~1\95A7CW~1.EXE" /RL HIGHEST
            5⤵
            • Creates scheduled task(s)
            PID:2976
    • C:\Users\Admin\AppData\Local\Temp\80A6.exe
      C:\Users\Admin\AppData\Local\Temp\80A6.exe
      2⤵
      • Executes dropped EXE
      PID:2916
  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1172
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:2752

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            78B9.exe

            • Path C:\Users\Admin\AppData\Local\Temp\78B9.exe
            • Size 360KB
            • SHA256 6d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880
            • MD5 SHA1 SHA512 SSDEEP

            80A6.exe

            • Path C:\Users\Admin\AppData\Local\Temp\80A6.exe
            • Size 207KB
            • SHA256 63316750092523126fa38e1016b2006b4e9fdffc2be839a44e865b2ab0977cb6
            • MD5 SHA1 SHA512 SSDEEP

            80A6.exe

            • Path C:\Users\Admin\AppData\Local\Temp\80A6.exe
            • Size 322KB
            • SHA256 431c2c18725958502c4f5dcfc43011c558ccf8e1bb823be723014739fc2365b1
            • MD5 SHA1 SHA512 SSDEEP

            80A6.exe

            • Path C:\Users\Admin\AppData\Local\Temp\80A6.exe
            • Size 71KB
            • SHA256 cec4c8dd7bd096b5ef7fac496fa689d840b86429e74eeae64f4e9da252356203
            • MD5 SHA1 SHA512 SSDEEP

            hhrdfaf

            • Path C:\Users\Admin\AppData\Roaming\hhrdfaf
            • Size 255KB
            • SHA256 461f0f86f52bfa5fbed84023d0a9c8652bcbca34fea76ad0cb5bb8c503b65c9a
            • MD5 SHA1 SHA512 SSDEEP

            memory/320-90-0x0000000002510000-0x000000000251C000-memory.dmp

            memory/320-105-0x0000000000010000-0x000000000006D000-memory.dmp

            memory/320-92-0x00000000002A0000-0x0000000000306000-memory.dmp

            memory/320-88-0x0000000000310000-0x0000000000316000-memory.dmp

            memory/320-91-0x00000000002A0000-0x0000000000306000-memory.dmp

            memory/320-106-0x00000000002A0000-0x0000000000306000-memory.dmp

            memory/320-86-0x00000000002A0000-0x0000000000306000-memory.dmp

            memory/320-107-0x0000000000310000-0x0000000000316000-memory.dmp

            memory/320-87-0x00000000002A0000-0x0000000000306000-memory.dmp

            memory/900-100-0x0000000000AE0000-0x0000000000B46000-memory.dmp

            memory/900-99-0x0000000000AE0000-0x0000000000B46000-memory.dmp

            memory/900-102-0x0000000000AE0000-0x0000000000B45000-memory.dmp

            memory/900-103-0x0000000000110000-0x000000000011B000-memory.dmp

            memory/1208-95-0x0000000002530000-0x0000000002531000-memory.dmp

            memory/1208-4-0x0000000002550000-0x0000000002566000-memory.dmp

            memory/1208-60-0x0000000077381000-0x0000000077382000-memory.dmp

            memory/2396-45-0x00000000004F0000-0x00000000004F1000-memory.dmp

            memory/2396-27-0x0000000000460000-0x00000000004C6000-memory.dmp

            memory/2396-22-0x0000000000460000-0x00000000004C6000-memory.dmp

            memory/2396-42-0x0000000000460000-0x00000000004C6000-memory.dmp

            memory/2396-24-0x0000000077520000-0x0000000077521000-memory.dmp

            memory/2396-85-0x00000000004F0000-0x00000000004F1000-memory.dmp

            memory/2396-25-0x00000000004D0000-0x00000000004D1000-memory.dmp

            memory/2396-44-0x0000000000220000-0x0000000000226000-memory.dmp

            memory/2396-26-0x0000000001CB0000-0x0000000001CBC000-memory.dmp

            memory/2396-18-0x0000000000010000-0x000000000006D000-memory.dmp

            memory/2396-20-0x0000000000220000-0x0000000000226000-memory.dmp

            memory/2396-21-0x0000000000230000-0x000000000023D000-memory.dmp

            memory/2396-19-0x0000000000460000-0x00000000004C6000-memory.dmp

            memory/2444-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

            memory/2444-5-0x0000000000400000-0x0000000000862000-memory.dmp

            memory/2444-2-0x00000000001B0000-0x00000000001B9000-memory.dmp

            memory/2444-3-0x0000000000400000-0x0000000000862000-memory.dmp

            memory/2752-75-0x0000000077381000-0x0000000077382000-memory.dmp

            memory/2780-35-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-56-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-61-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-62-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-63-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-64-0x0000000077330000-0x00000000774D9000-memory.dmp

            memory/2780-66-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-65-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-68-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-67-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-70-0x0000000000320000-0x0000000000326000-memory.dmp

            memory/2780-69-0x0000000000110000-0x00000000001D4000-memory.dmp

            memory/2780-71-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-73-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-74-0x0000000000110000-0x00000000001D4000-memory.dmp

            memory/2780-59-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-109-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-58-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-29-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-47-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-46-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-43-0x0000000000110000-0x00000000001D4000-memory.dmp

            memory/2780-37-0x0000000000110000-0x00000000001D4000-memory.dmp

            memory/2780-93-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-38-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-40-0x0000000000810000-0x000000000081C000-memory.dmp

            memory/2780-36-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-31-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-32-0x0000000000110000-0x00000000001D4000-memory.dmp

            memory/2780-33-0x0000000000320000-0x0000000000326000-memory.dmp

            memory/2780-34-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2780-30-0x0000000077510000-0x0000000077691000-memory.dmp

            memory/2916-57-0x0000000000AA0000-0x0000000001036000-memory.dmp

            memory/2916-55-0x0000000000AA0000-0x0000000001036000-memory.dmp