Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/02/2024, 22:38

General

  • Target
    b2746a96337f79494d3bfd452c5fe1f069b45b9f008a680f868e5a79021c37c6.exe
  • Size 240KB
  • Sample240215-2kefjabb89
  • SHA256 b2746a96337f79494d3bfd452c5fe1f069b45b9f008a680f868e5a79021c37c6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • pub3

Extracted

Family
  • smokeloader

Version
  • 2022

C2
  • http://sjyey.com/tmp/index.php

  • http://babonwo.ru/tmp/index.php

  • http://mth.com.ua/tmp/index.php

  • http://piratia.pw/tmp/index.php

  • http://go-piratia.ru/tmp/index.php

rc4.i32
rc4.i32

Extracted

Family
  • amadey

Version
  • 4.14

C2
  • http://anfesq.com

  • http://cbinr.com

  • http://rimakc.ru

Attributes
  • install_dir

    68fd3d7ade

  • install_file

    Utsysc.exe

  • strings_key

    27ec7fd6f50f63b8af0c1d3deefcc8fe

  • url_paths

    /forum/index.php

rc4.plain

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 9 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 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\b2746a96337f79494d3bfd452c5fe1f069b45b9f008a680f868e5a79021c37c6.exe
    "C:\Users\Admin\AppData\Local\Temp\b2746a96337f79494d3bfd452c5fe1f069b45b9f008a680f868e5a79021c37c6.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4700
  • C:\Users\Admin\AppData\Local\Temp\C6EA.exe
    C:\Users\Admin\AppData\Local\Temp\C6EA.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3480
    • C:\Users\Admin\AppData\Local\Temp\C6EA.exe
      C:\Users\Admin\AppData\Local\Temp\C6EA.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3712
      • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
        "C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3232
        • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
          "C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1528
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN Utsysc.exe /TR "C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe" /F
            5⤵
            • Creates scheduled task(s)
            PID:1588
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
            5⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1748
            • C:\Windows\system32\rundll32.exe
              "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
              6⤵
              • Loads dropped DLL
              PID:4676
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
            5⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:232
            • C:\Windows\system32\rundll32.exe
              "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
              6⤵
              • Loads dropped DLL
              PID:4564
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
            5⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:1624
            • C:\Windows\system32\rundll32.exe
              "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
              6⤵
              • Loads dropped DLL
              PID:2660
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
            5⤵
            • Loads dropped DLL
            PID:744
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
            5⤵
            • Loads dropped DLL
            PID:5116
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
            5⤵
            • Loads dropped DLL
            PID:4916
  • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
    C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:1620
  • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
    C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4368
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:4516
  • C:\Users\Admin\AppData\Roaming\avsatfh
    C:\Users\Admin\AppData\Roaming\avsatfh
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:872

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        232405761120

        • Path C:\Users\Admin\AppData\Local\Temp\232405761120
        • Size 77KB
        • SHA256 2c8ebe2d0549b2959ac4eb9a4e10a7b6d869b5a13c3707d2be6e3ca3cab50170
        • MD5 SHA1 SHA512 SSDEEP

        C6EA.exe

        • Path C:\Users\Admin\AppData\Local\Temp\C6EA.exe
        • Size 389KB
        • SHA256 54fe7416808922eb895d5a5b56aa62db6c404bf95d9d689e4e6d464b2f9e58b4
        • MD5 SHA1 SHA512 SSDEEP

        clip64.dll

        • Path C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll
        • Size 102KB
        • SHA256 97e342fb4dbfe474ab2674682a816931bb9f56814bf13b20ff11ac1939775125
        • MD5 SHA1 SHA512 SSDEEP

        cred64.dll

        • Path C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll
        • Size 1.1MB
        • SHA256 83ef6d2414a5c0c9cb6cfe502cb40cdda5c425ee7408a4075e32891f4599d938
        • MD5 SHA1 SHA512 SSDEEP

        avsatfh

        • Path C:\Users\Admin\AppData\Roaming\avsatfh
        • Size 240KB
        • SHA256 b2746a96337f79494d3bfd452c5fe1f069b45b9f008a680f868e5a79021c37c6
        • MD5 SHA1 SHA512 SSDEEP

        memory/872-125-0x0000000000400000-0x000000000044B000-memory.dmp

        memory/872-121-0x00000000005F0000-0x00000000006F0000-memory.dmp

        memory/872-122-0x0000000000400000-0x000000000044B000-memory.dmp

        memory/1528-105-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-78-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-106-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-103-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-91-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-88-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-40-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-41-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-42-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-43-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1528-56-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1620-74-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1620-76-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1620-75-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/3232-37-0x0000000000720000-0x0000000000820000-memory.dmp

        memory/3396-124-0x00000000012A0000-0x00000000012B6000-memory.dmp

        memory/3396-4-0x0000000003030000-0x0000000003046000-memory.dmp

        memory/3480-16-0x0000000000770000-0x0000000000870000-memory.dmp

        memory/3480-17-0x0000000002150000-0x00000000021BF000-memory.dmp

        memory/3712-22-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/3712-18-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/3712-20-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/3712-33-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/3712-21-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/4368-111-0x00000000007A0000-0x00000000008A0000-memory.dmp

        memory/4516-115-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/4516-114-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/4516-116-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/4700-5-0x0000000000400000-0x000000000044B000-memory.dmp

        memory/4700-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

        memory/4700-2-0x0000000000610000-0x000000000061B000-memory.dmp

        memory/4700-3-0x0000000000400000-0x000000000044B000-memory.dmp

        memory/5032-72-0x00000000006E0000-0x00000000007E0000-memory.dmp