Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    01/06/2024, 18:41

General

  • Target
    c4cf60e7a1678f6deec1f8ec4f4ddeca41528854950f6ac21693f7a14ca04677.exe
  • Size 804KB
  • Sample240601-xb2r9acb68
  • SHA256 c4cf60e7a1678f6deec1f8ec4f4ddeca41528854950f6ac21693f7a14ca04677
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • smokeloader

Botnet
  • pub1

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3292
      • C:\Users\Admin\AppData\Local\Temp\c4cf60e7a1678f6deec1f8ec4f4ddeca41528854950f6ac21693f7a14ca04677.exe
        "C:\Users\Admin\AppData\Local\Temp\c4cf60e7a1678f6deec1f8ec4f4ddeca41528854950f6ac21693f7a14ca04677.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2724
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k copy Cook Cook.cmd & Cook.cmd & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2748
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist
            4⤵
            • Enumerates processes with tasklist
            • Suspicious use of AdjustPrivilegeToken
            PID:3908
          • C:\Windows\SysWOW64\findstr.exe
            findstr /I "wrsa.exe opssvc.exe"
            4⤵
              PID:2312
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist
              4⤵
              • Enumerates processes with tasklist
              • Suspicious use of AdjustPrivilegeToken
              PID:2928
            • C:\Windows\SysWOW64\findstr.exe
              findstr /I "avastui.exe avgui.exe nswscsvc.exe sophoshealth.exe"
              4⤵
                PID:3808
              • C:\Windows\SysWOW64\cmd.exe
                cmd /c md 563203
                4⤵
                  PID:1020
                • C:\Windows\SysWOW64\findstr.exe
                  findstr /V "DevelRespectNicoleDisclosure" Terror
                  4⤵
                    PID:3248
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd /c copy /b Delays + Henderson 563203\O
                    4⤵
                      PID:1500
                    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\563203\President.pif
                      563203\President.pif 563203\O
                      4⤵
                      • Suspicious use of NtCreateUserProcessOtherParentProcess
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of FindShellTrayWindow
                      • Suspicious use of SendNotifyMessage
                      • Suspicious use of WriteProcessMemory
                      PID:1780
                    • C:\Windows\SysWOW64\PING.EXE
                      ping -n 5 127.0.0.1
                      4⤵
                      • Runs ping.exe
                      PID:1616
                • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\563203\President.pif
                  C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\563203\President.pif
                  2⤵
                  • Executes dropped EXE
                  • Checks SCSI registry key(s)
                  PID:2084

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    O

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\563203\O
                    • Size 216KB
                    • SHA256 37e50cf73cfdd4435f97adfbf59faeb2e1d4ab3078f7f755e830513e9cc6e79b
                    • MD5 SHA1 SHA512 SSDEEP

                    President.pif

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\563203\President.pif
                    • Size 915KB
                    • SHA256 8498900e57a490404e7ec4d8159bee29aed5852ae88bd484141780eaadb727bb
                    • MD5 SHA1 SHA512 SSDEEP

                    Angry

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Angry
                    • Size 56KB
                    • SHA256 1fa979096150b9a56a9232db961fc0596c8c40398715c14d58aed3b145411f50
                    • MD5 SHA1 SHA512 SSDEEP

                    B

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\B
                    • Size 7KB
                    • SHA256 c11ce1480bfd2200e822f10aa0ed07776e11df2151aec771108b312d89943a15
                    • MD5 SHA1 SHA512 SSDEEP

                    Buildings

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Buildings
                    • Size 45KB
                    • SHA256 f8b18cec905732f4fc42b906128db848aead34ac55121d161e2175714eab8810
                    • MD5 SHA1 SHA512 SSDEEP

                    Contributions

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Contributions
                    • Size 11KB
                    • SHA256 ba42b13f174900b329cdb6b6c4f56b2e8850ec23e6f9c9cbc65c362b3cc90e4c
                    • MD5 SHA1 SHA512 SSDEEP

                    Conviction

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Conviction
                    • Size 19KB
                    • SHA256 a7ac695e870c4bf4bca2f0fe6498ff16f18f362137872b555b77218f9421d2e7
                    • MD5 SHA1 SHA512 SSDEEP

                    Cook.cmd

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Cook.cmd
                    • Size 13KB
                    • SHA256 e5290af5d914d9819b4331fd04032fa96d0c24930403c3e6465327b4b8ccd6cb
                    • MD5 SHA1 SHA512 SSDEEP

                    Corrections

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Corrections
                    • Size 22KB
                    • SHA256 33f3b7dcdf19f5e2267b74870913f7858ff5988eb671c63cf463461ddfc8d7b5
                    • MD5 SHA1 SHA512 SSDEEP

                    Delays

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Delays
                    • Size 111KB
                    • SHA256 5f67f5840e974a2fd55f50899b81fd263a1bcbddcf367fefddd3ca7f16e2a203
                    • MD5 SHA1 SHA512 SSDEEP

                    Designers

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Designers
                    • Size 37KB
                    • SHA256 be6a357d7859810ea4b4711fcfb9f8014e9199c7fcbe923a2b0d4d38e243fce5
                    • MD5 SHA1 SHA512 SSDEEP

                    Disney

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Disney
                    • Size 65KB
                    • SHA256 65ee83c45f247005a126487d9f8907ee8a042681cd8ad994e18a2e04635a50f6
                    • MD5 SHA1 SHA512 SSDEEP

                    Fewer

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Fewer
                    • Size 22KB
                    • SHA256 4a641b0fe10f7248f5c60596363148b7875043db9e86ee0843f81f85a9c6c263
                    • MD5 SHA1 SHA512 SSDEEP

                    Fiji

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Fiji
                    • Size 43KB
                    • SHA256 3e232e2c78ff8e01921236ec565549ad5248ff5f6895b507bb771af29989bed8
                    • MD5 SHA1 SHA512 SSDEEP

                    Flu

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Flu
                    • Size 34KB
                    • SHA256 ea4209aa1d5f5b62f9d03d92152f1a0e3d483b0392866d9c4a178b6456cfb533
                    • MD5 SHA1 SHA512 SSDEEP

                    Fm

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Fm
                    • Size 44KB
                    • SHA256 4419537a70f52d206e902bcca85ad89d46aa54201c78294629de1040aa8821de
                    • MD5 SHA1 SHA512 SSDEEP

                    Gm

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Gm
                    • Size 12KB
                    • SHA256 c40168bd53ee5162509e60c82051043abfeb7dd39e410532aafabc7fee0a077e
                    • MD5 SHA1 SHA512 SSDEEP

                    Henderson

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Henderson
                    • Size 105KB
                    • SHA256 5611d55c0aa854b9a4dd89491a41289ca3b820fe91d4320d2a5cc0086270ac73
                    • MD5 SHA1 SHA512 SSDEEP

                    Lace

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Lace
                    • Size 11KB
                    • SHA256 9396d9578348eb849ae025d861e44dd8a40917639b174b82c919f8cc3bad0b1f
                    • MD5 SHA1 SHA512 SSDEEP

                    Legendary

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Legendary
                    • Size 16KB
                    • SHA256 925d48d6688214a199f5f8174f553fa5f2758ad7951fcf7a382adb5a26a4a4d4
                    • MD5 SHA1 SHA512 SSDEEP

                    Maritime

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Maritime
                    • Size 16KB
                    • SHA256 fecfbca6c470a36c65863a99ba344c3178743f4f88e2b90487bb593b6465113a
                    • MD5 SHA1 SHA512 SSDEEP

                    Meals

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Meals
                    • Size 44KB
                    • SHA256 7210618bc3ab8bbcfbbbaf2306e968d837c9cb94e9e1ebc7efbf606001f1badc
                    • MD5 SHA1 SHA512 SSDEEP

                    Page

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Page
                    • Size 6KB
                    • SHA256 8e60f86c54e4655d1c8d94901d4fe561fc4cc306fe6cc6560ea7c7cf2c520c81
                    • MD5 SHA1 SHA512 SSDEEP

                    Prefers

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Prefers
                    • Size 14KB
                    • SHA256 d0f124dfa3b6ccf6da00103032abc766a55527debb7516b1bb926a743eec4d83
                    • MD5 SHA1 SHA512 SSDEEP

                    Range

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Range
                    • Size 54KB
                    • SHA256 766405ceb93549aefe8206628a9a187af822f1b198b690328c0f41bc35e8665e
                    • MD5 SHA1 SHA512 SSDEEP

                    Refurbished

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Refurbished
                    • Size 33KB
                    • SHA256 b2bd8ee14ea85b2f8ef701cf8ceea54020f7f45469645bfece0ad94df8a24590
                    • MD5 SHA1 SHA512 SSDEEP

                    Responding

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Responding
                    • Size 23KB
                    • SHA256 bf1bbcd4dddf3e4d355889a72a6114dcd9939d32c966f8efda25d5db9015a4aa
                    • MD5 SHA1 SHA512 SSDEEP

                    Rug

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Rug
                    • Size 31KB
                    • SHA256 a31798a500ec18047cd37c69e443f10e076d1c52632fd4d25db23c7572a3dafa
                    • MD5 SHA1 SHA512 SSDEEP

                    Scan

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Scan
                    • Size 58KB
                    • SHA256 8173d910d9e0dab456ccbfa5665a11933fb83c8008036e6e8358f34c82412f80
                    • MD5 SHA1 SHA512 SSDEEP

                    Scottish

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Scottish
                    • Size 9KB
                    • SHA256 b0523cb0e6a6290d8b8093f9879054ef96bac841f9d40f3bf5841ee14f44be1d
                    • MD5 SHA1 SHA512 SSDEEP

                    Sexo

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Sexo
                    • Size 23KB
                    • SHA256 7cde8b7bc8ec782b30b76f34015ded9847b94e2e6cd19df8fa0d840958680cd0
                    • MD5 SHA1 SHA512 SSDEEP

                    Signup

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Signup
                    • Size 20KB
                    • SHA256 8b1c1b67954884f916f5b15750fc4d858c51adec07aa7e82e7e8bf4d9194c31d
                    • MD5 SHA1 SHA512 SSDEEP

                    Terror

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Terror
                    • Size 77B
                    • SHA256 be1248ab4e992e02c1946264556ec61cfed7e6e18c5b44422c09aa87d1afd643
                    • MD5 SHA1 SHA512

                    Test

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Test
                    • Size 25KB
                    • SHA256 c0b11266453e8b269482fe5685da28ddc1ccacfd979fc9ae4a20241e7896ec95
                    • MD5 SHA1 SHA512 SSDEEP

                    Totally

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Totally
                    • Size 54KB
                    • SHA256 0d0d7470cc9c588f9b213de107dd5d38c32fc6dc445fdbc4e26f28d8deac7f21
                    • MD5 SHA1 SHA512 SSDEEP

                    Underlying

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Underlying
                    • Size 61KB
                    • SHA256 7953a724ef2c9ab8f3d6f2ae98ea32944b061c34d80698cd2df163d40ffc47b2
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/2084-367-0x0000000000400000-0x000000000040B000-memory.dmp

                    memory/2084-368-0x0000000000400000-0x000000000040B000-memory.dmp