Resubmissions

16-02-2024 05:11

240216-fvbxhaac5s 10

16-02-2024 04:50

240216-ff8ypaae66 10

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

  • MD5

    12feeee4bc19579083e686cf16dea6e3

  • SHA1

    156fef6e87be45f48055315cf134421655a3a727

  • SHA256

    c41b3fb6b30753a23f0b274f4f176202915d248256140e4512d541589b62bdc9

  • SHA512

    b942d5c619c6fa490edd96e9aeabb008c630f12343de4b0f0b6924bea0d50770dadf3072c2c20b2012e75bf59d9a8c7025174793177df16b405605059b921346

  • SSDEEP

    3072:9nznk9/Gm+lK+SQCylz9uD4BfKVSHudaCzg25lXp0:Rg+lK+SR69uD4BfnHgn

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

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\290.exe

    Filesize

    384KB

    MD5

    e1dc6f36bc9f047f33b58c8c0fc2da89

    SHA1

    cf6dfe8eaa32971eb53f02d0dc7c8ac299968880

    SHA256

    6f861ffc77ac6529a50211ae09d7bbdf27b97b73e17f9c4cdb397e39dc85a767

    SHA512

    6387d154ca10f44aa3abb8ef9b653c99b7fa583d152ef51b5091fccce085c6459ecc799f0491e8e3fe197f8bcd30af2d6c8fae3973311b05930fd444be962f92

  • C:\Users\Admin\AppData\Local\Temp\523118073713

    Filesize

    68KB

    MD5

    617f54258f33d26fa039bcc5c02d688d

    SHA1

    80ec48d75fb4686f028cab550a8d5d1e92c207d8

    SHA256

    6388a827c6dbc16afad277524b994d63b8d33bbfc4ba86f01b07e590fcf02434

    SHA512

    191d6bf2930e1a32a8139b85b688d626bb7bea19a82438538c0794b481d779516eb8a996e029411e70dca7d45aadc405a73a5360cf7fe747abc031078129116a

  • C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll

    Filesize

    102KB

    MD5

    4194e9b8b694b1e9b672c36f0d868e32

    SHA1

    252f27fe313c7bf8e9f36aef0c7b676383872efb

    SHA256

    97e342fb4dbfe474ab2674682a816931bb9f56814bf13b20ff11ac1939775125

    SHA512

    f956acdec4c0255030f784d27210d59e30c3377e0a5abec915818bde8545afc3ef04a06395a2bfa5946f86cdf1088c9089bfc5064d9fd71b8137eae14f64e5c7

  • C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll

    Filesize

    1.1MB

    MD5

    f01f5bc76b9596e0cfeab8a272cba3a5

    SHA1

    19cab1291e4e518ae636f2fb3d41567e4e6e4722

    SHA256

    83ef6d2414a5c0c9cb6cfe502cb40cdda5c425ee7408a4075e32891f4599d938

    SHA512

    ccfa16f0bbcdb909446fc4d47c1732e0b1baa759d78866fcce9ac7c5c12f1299e74df03b23881f3e37627b358bc6ddd2941c9110e030f6d68dd79f67c9e39f63

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

    Filesize

    88KB

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

    Filesize

    1024KB

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

    Filesize

    444KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    1024KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    1024KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    1024KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    452KB

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

    Filesize

    1024KB

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

    Filesize

    44KB

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

    Filesize

    44KB

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

    Filesize

    300KB

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

    Filesize

    1024KB

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

    Filesize

    300KB

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

    Filesize

    452KB

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

    Filesize

    1024KB

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

    Filesize

    452KB

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

    Filesize

    1024KB

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

    Filesize

    452KB

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

    Filesize

    4KB

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

    Filesize

    1024KB

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

    Filesize

    444KB

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

    Filesize

    452KB