Analysis

  • max time kernel
    30s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    14/01/2024, 04:12

General

  • Target
    74b2a3fce09943389941e572722057b1.exe
  • Size 230KB
  • Sample240114-eshftschd3
  • SHA256 a872d94a56b33329d5b685a2597589dce5d0296fc7905af4dded6573ce626999
  • MD5 SHA1 SHA512 SSDEEP

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 2 IoCs
  • Executes dropped EXE 2 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 FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 8 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\74b2a3fce09943389941e572722057b1.exe
    "C:\Users\Admin\AppData\Local\Temp\74b2a3fce09943389941e572722057b1.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2956
  • C:\Users\Admin\AppData\Local\Temp\74b2a3fce09943389941e572722057b1.exe
    "C:\Users\Admin\AppData\Local\Temp\74b2a3fce09943389941e572722057b1.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:2956
  • C:\Users\Admin\AppData\Local\Temp\85E2.exe
    C:\Users\Admin\AppData\Local\Temp\85E2.exe
    1⤵
    • Executes dropped EXE
    PID:2828
  • C:\Users\Admin\AppData\Local\Temp\85E2.exe
    C:\Users\Admin\AppData\Local\Temp\85E2.exe
    1⤵
    • Executes dropped EXE
    PID:2828

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        85E2.exe

        • Path C:\Users\Admin\AppData\Local\Temp\85E2.exe
        • Size 438KB
        • SHA256 fb42087a89e77e678b7ebe356cbab42bb8c695ea86f1e33d97e0287f168667bf
        • MD5 SHA1 SHA512 SSDEEP

        85E2.exe

        • Path C:\Users\Admin\AppData\Local\Temp\85E2.exe
        • Size 576KB
        • SHA256 075d7fb60d2432f0d74e4f384269cf1796711fc9c13625923d3232bd904fc337
        • MD5 SHA1 SHA512 SSDEEP

        85E2.exe

        • Path C:\Users\Admin\AppData\Local\Temp\85E2.exe
        • Size 288KB
        • SHA256 c6e405feb60e8389eda7ce2036d8e54e83a49a0eb3fd9668596e38eda2badc20
        • MD5 SHA1 SHA512 SSDEEP

        memory/1136-4-0x0000000002D30000-0x0000000002D46000-memory.dmp

        memory/1136-4-0x0000000002D30000-0x0000000002D46000-memory.dmp

        memory/2956-5-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/2956-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

        memory/2956-3-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/2956-5-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/2956-2-0x0000000000220000-0x000000000022B000-memory.dmp

        memory/2956-2-0x0000000000220000-0x000000000022B000-memory.dmp

        memory/2956-3-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/2956-1-0x00000000004E0000-0x00000000005E0000-memory.dmp