Resubmissions

16/02/2024, 05:11

240216-fvbxhaac5s10

16/02/2024, 04:50

240216-ff8ypaae6610

Analysis

  • max time kernel
    300s
  • max time network
    299s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    16/02/2024, 04:50

General

  • Target
    c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe
  • Size 236KB
  • Sample240216-ff8ypaae66
  • SHA256 c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9
  • 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
  • Deletes itself 1 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 44 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe
    "C:\Users\Admin\AppData\Local\Temp\c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2036
  • C:\Users\Admin\AppData\Local\Temp\290.exe
    C:\Users\Admin\AppData\Local\Temp\290.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      "C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1924
      • 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
        3⤵
        • Creates scheduled task(s)
        PID:2652
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:588
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1624
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 1624 -s 312
            5⤵
            • Loads dropped DLL
            PID:1088
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2852
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:3040
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 3040 -s 312
            5⤵
            • Loads dropped DLL
            PID:1572
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1472
        • C:\Windows\system32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2076
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 2076 -s 312
            5⤵
            • Loads dropped DLL
            PID:2980
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
        3⤵
        • Loads dropped DLL
        PID:2148
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
        3⤵
        • Loads dropped DLL
        PID:1960
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
        3⤵
        • Loads dropped DLL
        PID:1468
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {BF9AAB47-0F03-415F-B456-373177883B4D} S-1-5-21-452311807-3713411997-1028535425-1000:OZEMQECW\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:1528
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:2448
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:2440
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:1988
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:1888

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        290.exe

        • Path C:\Users\Admin\AppData\Local\Temp\290.exe
        • Size 384KB
        • SHA256 6f861ffc77ac6529a50211ae09d7bbdf27b97b73e17f9c4cdb397e39dc85a767
        • MD5 SHA1 SHA512 SSDEEP

        523118073713

        • Path C:\Users\Admin\AppData\Local\Temp\523118073713
        • Size 68KB
        • SHA256 6388a827c6dbc16afad277524b994d63b8d33bbfc4ba86f01b07e590fcf02434
        • 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

        memory/1260-4-0x00000000029F0000-0x0000000002A06000-memory.dmp

        memory/1528-47-0x0000000000530000-0x0000000000630000-memory.dmp

        memory/1528-56-0x00000000002E0000-0x000000000034F000-memory.dmp

        memory/1528-46-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1888-162-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1888-163-0x0000000000530000-0x0000000000630000-memory.dmp

        memory/1924-116-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-69-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-38-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-37-0x00000000005A0000-0x00000000006A0000-memory.dmp

        memory/1924-145-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-140-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-131-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-52-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-53-0x00000000005A0000-0x00000000006A0000-memory.dmp

        memory/1924-54-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-105-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1924-86-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1988-152-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/1988-153-0x0000000000550000-0x0000000000650000-memory.dmp

        memory/2036-2-0x0000000000220000-0x000000000022B000-memory.dmp

        memory/2036-8-0x0000000000220000-0x000000000022B000-memory.dmp

        memory/2036-3-0x0000000000400000-0x000000000044B000-memory.dmp

        memory/2036-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

        memory/2036-5-0x0000000000400000-0x000000000044B000-memory.dmp

        memory/2440-134-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/2440-135-0x0000000000530000-0x0000000000630000-memory.dmp

        memory/2448-63-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/2448-64-0x0000000000270000-0x0000000000370000-memory.dmp

        memory/2592-21-0x0000000000400000-0x0000000000471000-memory.dmp

        memory/2592-22-0x0000000000610000-0x0000000000611000-memory.dmp

        memory/2592-19-0x0000000000620000-0x0000000000720000-memory.dmp

        memory/2592-20-0x0000000000220000-0x000000000028F000-memory.dmp

        memory/2592-35-0x0000000000400000-0x0000000000471000-memory.dmp