Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    17/04/2024, 13:57

General

  • Target

    5d757b69732066527c841f7007486942fe0f339770121327053917bf6c05d7c5.exe

  • Size

    308KB

  • MD5

    97c6a1b4f0d2a75019cdd39c509ad040

  • SHA1

    738df6dc3fc1ba4e136fdb76b1f7a225c7b035b0

  • SHA256

    5d757b69732066527c841f7007486942fe0f339770121327053917bf6c05d7c5

  • SHA512

    f8d24851a6f6e1bb8f42d6d5accd3fc0ace97be0472c18aef46a1b6523871f8ceef4c7580107381247958eb38f5f240bb4cd7648212e73f9194883b4f5dd9a27

  • SSDEEP

    3072:1T/zZ9SX0Cz20Nq+BcKiEXKuxgeG+Y58h4s39/Rt0qn0NwucILEIiu/1BTYn5:Fyka80/ra+OsN/Rt0qucILEIim1w

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://selebration17io.io/index.php

http://vacantion18ffeu.cc/index.php

http://valarioulinity1.net/index.php

http://buriatiarutuhuob.net/index.php

http://cassiosssionunu.me/index.php

http://sulugilioiu19.net/index.php

http://goodfooggooftool.net/index.php

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d757b69732066527c841f7007486942fe0f339770121327053917bf6c05d7c5.exe
    "C:\Users\Admin\AppData\Local\Temp\5d757b69732066527c841f7007486942fe0f339770121327053917bf6c05d7c5.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2920
  • C:\Users\Admin\AppData\Local\Temp\C3FB.exe
    C:\Users\Admin\AppData\Local\Temp\C3FB.exe
    1⤵
    • Executes dropped EXE
    PID:2720
  • C:\Users\Admin\AppData\Local\Temp\C89D.exe
    C:\Users\Admin\AppData\Local\Temp\C89D.exe
    1⤵
    • Executes dropped EXE
    PID:2648
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {EA81F491-93FC-4A7D-900D-6DB801CC3853} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2168
    • C:\Users\Admin\AppData\Roaming\vfwdusi
      C:\Users\Admin\AppData\Roaming\vfwdusi
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2408

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\C3FB.exe

          Filesize

          5.0MB

          MD5

          4871b0cc9f2c5d9831805ce8dbf3e51c

          SHA1

          15aa462a7ceba6c033064a56fa9984aa7ec15e0a

          SHA256

          e8b3976718b6a4a2c2c8bbe91ef6830876275ccbf78a72e8d1816328e4e627eb

          SHA512

          73532e6febf109aa489858ffc989bb69fdeefe8ade30261ecc9e9635e390714e77a70ca0c8ab3bc836c5318e2ec22dba1a063144fce23cbfd0dbd0b8400d0e6b

        • C:\Users\Admin\AppData\Local\Temp\C89D.exe

          Filesize

          513KB

          MD5

          982035bc968af21d8078f6f11d420317

          SHA1

          036d697eb600cc0c2481b112f4475de42ca389c6

          SHA256

          5164258993a4db297eafcd03cadafb054a9fa9bae024ea0e047917a664c5c1b0

          SHA512

          bd3bedd6d1c93cec19257e5bb0b994790f9d08b9f76092cd79a3a558afc884a08c6250ef1889d4eb7a6c1a6f555d00a1a48108a63072007dc9d802b91cc24055

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

          Filesize

          308KB

          MD5

          97c6a1b4f0d2a75019cdd39c509ad040

          SHA1

          738df6dc3fc1ba4e136fdb76b1f7a225c7b035b0

          SHA256

          5d757b69732066527c841f7007486942fe0f339770121327053917bf6c05d7c5

          SHA512

          f8d24851a6f6e1bb8f42d6d5accd3fc0ace97be0472c18aef46a1b6523871f8ceef4c7580107381247958eb38f5f240bb4cd7648212e73f9194883b4f5dd9a27

        • memory/1256-4-0x0000000002510000-0x0000000002526000-memory.dmp

          Filesize

          88KB

        • memory/1256-31-0x0000000002530000-0x0000000002546000-memory.dmp

          Filesize

          88KB

        • memory/2408-29-0x0000000002DC0000-0x0000000002EC0000-memory.dmp

          Filesize

          1024KB

        • memory/2408-30-0x0000000000400000-0x0000000002D4B000-memory.dmp

          Filesize

          41.3MB

        • memory/2408-32-0x0000000000400000-0x0000000002D4B000-memory.dmp

          Filesize

          41.3MB

        • memory/2648-22-0x0000000000010000-0x0000000000096000-memory.dmp

          Filesize

          536KB

        • memory/2648-25-0x0000000000010000-0x0000000000096000-memory.dmp

          Filesize

          536KB

        • memory/2920-5-0x0000000000400000-0x0000000002D4B000-memory.dmp

          Filesize

          41.3MB

        • memory/2920-3-0x0000000000400000-0x0000000002D4B000-memory.dmp

          Filesize

          41.3MB

        • memory/2920-2-0x00000000002A0000-0x00000000002AB000-memory.dmp

          Filesize

          44KB

        • memory/2920-1-0x0000000002DC0000-0x0000000002EC0000-memory.dmp

          Filesize

          1024KB