Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2023 00:30

General

  • Target

    376349c30b19dea794469cf65f012ca0.exe

  • Size

    203KB

  • MD5

    376349c30b19dea794469cf65f012ca0

  • SHA1

    0eac406b118bb4a35e7501306577d689d2dbb85e

  • SHA256

    06b7da2a21d1375abfb7d433fe0acd3816524390605df00ae4d01660bbe92923

  • SHA512

    996a9eb46fa22413aec5741d1f70deae1d59539a79cb362eefd472c3b860971cecef8270af6a4203c7f39499c0fc957076f5728682b97666bff26b1dc7bb82d4

  • SSDEEP

    3072:UL4yhYY/3d0wTF29H9jmHd7cxatBgGgS/lPYxAxAU:UL4yhB/3dg9gFVg8FY6xA

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 WriteProcessMemory 50 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1160
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Deletes itself
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Users\Admin\AppData\Local\Temp\376349c30b19dea794469cf65f012ca0.exe
        "C:\Users\Admin\AppData\Local\Temp\376349c30b19dea794469cf65f012ca0.exe"
        2⤵
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        PID:2456
      • C:\Users\Admin\AppData\Local\Temp\FA66.exe
        C:\Users\Admin\AppData\Local\Temp\FA66.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:2604
        • 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:2012
          • C:\Users\Admin\AppData\Local\Temp\cq9713ua95_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:1040
            • 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:3032
            • C:\Windows\SysWOW64\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x1BB70478" /TR "C:\PROGRA~3\JAVAUP~1\CQ9713~1.EXE" /RL HIGHEST
              5⤵
              • Creates scheduled task(s)
              PID:1740
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:2768

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Scheduled Task/Job

      1
      T1053

      Persistence

      Create or Modify System Process

      2
      T1543

      Windows Service

      2
      T1543.003

      Boot or Logon Autostart Execution

      3
      T1547

      Registry Run Keys / Startup Folder

      3
      T1547.001

      Scheduled Task/Job

      1
      T1053

      Privilege Escalation

      Create or Modify System Process

      2
      T1543

      Windows Service

      2
      T1543.003

      Boot or Logon Autostart Execution

      3
      T1547

      Registry Run Keys / Startup Folder

      3
      T1547.001

      Scheduled Task/Job

      1
      T1053

      Defense Evasion

      Modify Registry

      8
      T1112

      Discovery

      Query Registry

      4
      T1012

      System Information Discovery

      5
      T1082

      Software Discovery

      1
      T1518

      Security Software Discovery

      1
      T1518.001

      Peripheral Device Discovery

      1
      T1120

      Impact

      Inhibit System Recovery

      1
      T1490

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\FA66.exe
        Filesize

        360KB

        MD5

        a677d7b13f3fd7b234f19e86d337d75c

        SHA1

        464503b235cc0887048cc16b39d6313c3e5b13b4

        SHA256

        761e80eda4fffc85fa7cbd0ac6b232a25f641e9516bda8e1b085c9feb8baef68

        SHA512

        cb9d588b0e00adb521325d7f50521bc76ef8f794bda9db4225db71e9aa370113358498bf9f33f9271feb14eb245a36c53c6de68b229284256cdd5c8cd19fd44c

      • C:\Users\Admin\AppData\Roaming\jcubtgu
        Filesize

        203KB

        MD5

        376349c30b19dea794469cf65f012ca0

        SHA1

        0eac406b118bb4a35e7501306577d689d2dbb85e

        SHA256

        06b7da2a21d1375abfb7d433fe0acd3816524390605df00ae4d01660bbe92923

        SHA512

        996a9eb46fa22413aec5741d1f70deae1d59539a79cb362eefd472c3b860971cecef8270af6a4203c7f39499c0fc957076f5728682b97666bff26b1dc7bb82d4

      • \??\PIPE\samr
        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

      • memory/1040-97-0x00000000004A0000-0x0000000000506000-memory.dmp
        Filesize

        408KB

      • memory/1040-96-0x0000000000010000-0x000000000006D000-memory.dmp
        Filesize

        372KB

      • memory/1040-98-0x00000000002A0000-0x00000000002A6000-memory.dmp
        Filesize

        24KB

      • memory/1040-82-0x00000000004A0000-0x0000000000506000-memory.dmp
        Filesize

        408KB

      • memory/1040-80-0x00000000002A0000-0x00000000002A6000-memory.dmp
        Filesize

        24KB

      • memory/1040-81-0x0000000001E00000-0x0000000001E0C000-memory.dmp
        Filesize

        48KB

      • memory/1040-78-0x00000000004A0000-0x0000000000506000-memory.dmp
        Filesize

        408KB

      • memory/1224-85-0x0000000001CD0000-0x0000000001CD1000-memory.dmp
        Filesize

        4KB

      • memory/1224-4-0x0000000002990000-0x00000000029A5000-memory.dmp
        Filesize

        84KB

      • memory/1224-51-0x0000000077831000-0x0000000077832000-memory.dmp
        Filesize

        4KB

      • memory/2012-48-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-56-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-31-0x0000000000190000-0x0000000000254000-memory.dmp
        Filesize

        784KB

      • memory/2012-100-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-29-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-30-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-32-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-34-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-36-0x0000000000260000-0x0000000000266000-memory.dmp
        Filesize

        24KB

      • memory/2012-38-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-37-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-39-0x0000000000190000-0x0000000000254000-memory.dmp
        Filesize

        784KB

      • memory/2012-41-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-42-0x00000000004E0000-0x00000000004EC000-memory.dmp
        Filesize

        48KB

      • memory/2012-43-0x0000000000190000-0x0000000000254000-memory.dmp
        Filesize

        784KB

      • memory/2012-44-0x0000000000190000-0x0000000000254000-memory.dmp
        Filesize

        784KB

      • memory/2012-45-0x00000000004D0000-0x00000000004D1000-memory.dmp
        Filesize

        4KB

      • memory/2012-46-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-47-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-89-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-49-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-50-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-83-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-52-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-53-0x00000000777E0000-0x0000000077989000-memory.dmp
        Filesize

        1.7MB

      • memory/2012-55-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-54-0x0000000000190000-0x0000000000254000-memory.dmp
        Filesize

        784KB

      • memory/2012-75-0x0000000000190000-0x0000000000254000-memory.dmp
        Filesize

        784KB

      • memory/2012-57-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-58-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-59-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-60-0x0000000000260000-0x0000000000266000-memory.dmp
        Filesize

        24KB

      • memory/2012-61-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-74-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2012-72-0x00000000779C0000-0x0000000077B41000-memory.dmp
        Filesize

        1.5MB

      • memory/2456-5-0x0000000000400000-0x0000000001D80000-memory.dmp
        Filesize

        25.5MB

      • memory/2456-1-0x0000000000290000-0x0000000000390000-memory.dmp
        Filesize

        1024KB

      • memory/2456-3-0x00000000001B0000-0x00000000001B9000-memory.dmp
        Filesize

        36KB

      • memory/2456-2-0x0000000000400000-0x0000000001D80000-memory.dmp
        Filesize

        25.5MB

      • memory/2604-21-0x0000000000450000-0x000000000045D000-memory.dmp
        Filesize

        52KB

      • memory/2604-35-0x0000000000290000-0x00000000002F6000-memory.dmp
        Filesize

        408KB

      • memory/2604-19-0x0000000000290000-0x00000000002F6000-memory.dmp
        Filesize

        408KB

      • memory/2604-20-0x0000000000300000-0x0000000000301000-memory.dmp
        Filesize

        4KB

      • memory/2604-22-0x00000000779D0000-0x00000000779D1000-memory.dmp
        Filesize

        4KB

      • memory/2604-24-0x0000000000290000-0x00000000002F6000-memory.dmp
        Filesize

        408KB

      • memory/2604-18-0x0000000000010000-0x000000000006D000-memory.dmp
        Filesize

        372KB

      • memory/2604-23-0x0000000000760000-0x0000000000761000-memory.dmp
        Filesize

        4KB

      • memory/2604-25-0x0000000001D70000-0x0000000001D7C000-memory.dmp
        Filesize

        48KB

      • memory/2604-27-0x0000000000290000-0x00000000002F6000-memory.dmp
        Filesize

        408KB

      • memory/2768-63-0x0000000077831000-0x0000000077832000-memory.dmp
        Filesize

        4KB

      • memory/3032-90-0x0000000000630000-0x0000000000696000-memory.dmp
        Filesize

        408KB

      • memory/3032-93-0x0000000000630000-0x0000000000695000-memory.dmp
        Filesize

        404KB

      • memory/3032-94-0x0000000000090000-0x000000000009B000-memory.dmp
        Filesize

        44KB

      • memory/3032-91-0x0000000000630000-0x0000000000696000-memory.dmp
        Filesize

        408KB