Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16/09/2023, 12:28

General

  • Target

    8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe

  • Size

    269KB

  • MD5

    471d013aab48d5f5c969bc7aa6c16fa1

  • SHA1

    11b57c813d8e758e72a6d9610f8b8bc29b0ec4ac

  • SHA256

    8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253

  • SHA512

    ee5563e164f93bdab792e1b63f5fca5a201d0abb9eab531520dddc82ce919ebb34ae341e44c60c05fbd50a991320f789e2f937ef5762715ac847936cd4dd3a55

  • SSDEEP

    1536:82N8DK2jqYskSPpFIa+dKsf0UoY65nNhkE2dtXr+DyIQ3yXvPuljlTs95/uTzIT+:8zDBXva+bBCNfQ7+DPQ3y/PqTs964Yt

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 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: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 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\8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe
    "C:\Users\Admin\AppData\Local\Temp\8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe
      "C:\Users\Admin\AppData\Local\Temp\8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4060
  • C:\Users\Admin\AppData\Roaming\swhiwjs
    C:\Users\Admin\AppData\Roaming\swhiwjs
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3604
    • C:\Users\Admin\AppData\Roaming\swhiwjs
      C:\Users\Admin\AppData\Roaming\swhiwjs
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:3488

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          269KB

          MD5

          471d013aab48d5f5c969bc7aa6c16fa1

          SHA1

          11b57c813d8e758e72a6d9610f8b8bc29b0ec4ac

          SHA256

          8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253

          SHA512

          ee5563e164f93bdab792e1b63f5fca5a201d0abb9eab531520dddc82ce919ebb34ae341e44c60c05fbd50a991320f789e2f937ef5762715ac847936cd4dd3a55

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

          Filesize

          269KB

          MD5

          471d013aab48d5f5c969bc7aa6c16fa1

          SHA1

          11b57c813d8e758e72a6d9610f8b8bc29b0ec4ac

          SHA256

          8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253

          SHA512

          ee5563e164f93bdab792e1b63f5fca5a201d0abb9eab531520dddc82ce919ebb34ae341e44c60c05fbd50a991320f789e2f937ef5762715ac847936cd4dd3a55

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

          Filesize

          269KB

          MD5

          471d013aab48d5f5c969bc7aa6c16fa1

          SHA1

          11b57c813d8e758e72a6d9610f8b8bc29b0ec4ac

          SHA256

          8c3b5215c255fb79121d3fcdb77e2d6d361e1c2245262767239902ad50695253

          SHA512

          ee5563e164f93bdab792e1b63f5fca5a201d0abb9eab531520dddc82ce919ebb34ae341e44c60c05fbd50a991320f789e2f937ef5762715ac847936cd4dd3a55

        • memory/1504-2-0x0000000000960000-0x0000000000969000-memory.dmp

          Filesize

          36KB

        • memory/1504-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp

          Filesize

          1024KB

        • memory/3264-5-0x0000000000CE0000-0x0000000000CF6000-memory.dmp

          Filesize

          88KB

        • memory/3264-20-0x00000000026D0000-0x00000000026E6000-memory.dmp

          Filesize

          88KB

        • memory/3488-19-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3488-23-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3604-16-0x0000000000910000-0x0000000000A10000-memory.dmp

          Filesize

          1024KB

        • memory/4060-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4060-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4060-3-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB