Analysis

  • max time kernel
    150s
  • max time network
    152s
  • 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 23:57

General

  • Target

    8a0cc572475268a9ca1e1f9f65bbcd875b3aeb0522014d627e780e615092cd9a.exe

  • Size

    240KB

  • MD5

    32e42bd81cfc8ea5fc638a5f43a749f0

  • SHA1

    37df03feda3f4da9ef7c5d2bdc308bda6d1a9b49

  • SHA256

    8a0cc572475268a9ca1e1f9f65bbcd875b3aeb0522014d627e780e615092cd9a

  • SHA512

    8a531a29a39b663fb17ccd0c6a72d17635254d3e8061b1ee949f8f9b4cace6106e6d9363f5a8d7b4b42119233c7edfac3a9a3bb5be9c3846617c26e692944e15

  • SSDEEP

    6144:6Ofqv2ATm/X4b0jtNqrqokT6MbiZ44WR:6OfhAwowKgsZ6

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\8a0cc572475268a9ca1e1f9f65bbcd875b3aeb0522014d627e780e615092cd9a.exe
    "C:\Users\Admin\AppData\Local\Temp\8a0cc572475268a9ca1e1f9f65bbcd875b3aeb0522014d627e780e615092cd9a.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2300
  • C:\Users\Admin\AppData\Local\Temp\C757.exe
    C:\Users\Admin\AppData\Local\Temp\C757.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:456
    • C:\Users\Admin\AppData\Local\Temp\C757.exe
      C:\Users\Admin\AppData\Local\Temp\C757.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2344
      • 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:3988
        • 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:556
          • 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:2096
          • 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:3496
            • C:\Windows\system32\rundll32.exe
              "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
              6⤵
              • Loads dropped DLL
              PID:1276
          • 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:2356
            • C:\Windows\system32\rundll32.exe
              "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
              6⤵
              • Loads dropped DLL
              PID:4636
          • 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:2176
            • C:\Windows\system32\rundll32.exe
              "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\cred64.dll, Main
              6⤵
              • Loads dropped DLL
              PID:1472
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
            5⤵
            • Loads dropped DLL
            PID:2068
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
            5⤵
            • Loads dropped DLL
            PID:2816
          • C:\Windows\SysWOW64\rundll32.exe
            "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\2eed656dd58e95\clip64.dll, Main
            5⤵
            • Loads dropped DLL
            PID:2032
  • 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:792
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:4540
  • 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:1136
    • C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      C:\Users\Admin\AppData\Local\Temp\68fd3d7ade\Utsysc.exe
      2⤵
      • Executes dropped EXE
      PID:4688
  • C:\Users\Admin\AppData\Roaming\avctreh
    C:\Users\Admin\AppData\Roaming\avctreh
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:5024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\497073144238

    Filesize

    78KB

    MD5

    b567fea2f064c6b697be5ffc72d10ad9

    SHA1

    b5b22d1d3b68737fee3a0e22327da3f3b2e19380

    SHA256

    ebf0cd7b2b3a87f289964038b6a527a7fb220a17b48c2653aa0b763422639a71

    SHA512

    279bfbfb7b2c391167388b9aacc42f2bf570d278482a844a2086294297468957b016031576a5e39d6cdc868990eaacce5fcada107a25f385f8c9b951dc2020e0

  • C:\Users\Admin\AppData\Local\Temp\C757.exe

    Filesize

    389KB

    MD5

    57a16daebdf4113651b1d0a1af3ebf96

    SHA1

    bf2dec1b7cdbe8548020f6e9c3002151fe6a20ee

    SHA256

    54fe7416808922eb895d5a5b56aa62db6c404bf95d9d689e4e6d464b2f9e58b4

    SHA512

    a20f4c5e9e3f3656171201e509d80dfc61b962c141512cd05945dad0129b181cc3516b21c43a76d1a04c13208760362187e894db198ecfc81664b75f744d58b6

  • 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

  • C:\Users\Admin\AppData\Roaming\avctreh

    Filesize

    240KB

    MD5

    32e42bd81cfc8ea5fc638a5f43a749f0

    SHA1

    37df03feda3f4da9ef7c5d2bdc308bda6d1a9b49

    SHA256

    8a0cc572475268a9ca1e1f9f65bbcd875b3aeb0522014d627e780e615092cd9a

    SHA512

    8a531a29a39b663fb17ccd0c6a72d17635254d3e8061b1ee949f8f9b4cace6106e6d9363f5a8d7b4b42119233c7edfac3a9a3bb5be9c3846617c26e692944e15

  • memory/456-17-0x00000000006D0000-0x000000000073F000-memory.dmp

    Filesize

    444KB

  • memory/456-16-0x0000000000780000-0x0000000000880000-memory.dmp

    Filesize

    1024KB

  • memory/556-105-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-56-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-106-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-103-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-84-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-81-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-40-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-41-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-42-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-43-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/556-69-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/792-74-0x00000000005B0000-0x00000000006B0000-memory.dmp

    Filesize

    1024KB

  • memory/1136-112-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB

  • memory/2300-5-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2300-1-0x0000000000690000-0x0000000000790000-memory.dmp

    Filesize

    1024KB

  • memory/2300-3-0x0000000002190000-0x000000000219B000-memory.dmp

    Filesize

    44KB

  • memory/2300-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/2344-18-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2344-34-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2344-22-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2344-21-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2344-20-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/3536-124-0x00000000030C0000-0x00000000030D6000-memory.dmp

    Filesize

    88KB

  • memory/3536-4-0x0000000001280000-0x0000000001296000-memory.dmp

    Filesize

    88KB

  • memory/3988-37-0x00000000007D0000-0x00000000008D0000-memory.dmp

    Filesize

    1024KB

  • memory/4540-79-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4540-78-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4540-77-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4688-115-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4688-116-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4688-117-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/5024-122-0x00000000005F0000-0x00000000006F0000-memory.dmp

    Filesize

    1024KB

  • memory/5024-123-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/5024-127-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB