Analysis

  • max time kernel
    180s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11-10-2023 04:54

General

  • Target

    ebe741ca96299771acc107b28aea9b2e.exe

  • Size

    246KB

  • MD5

    ebe741ca96299771acc107b28aea9b2e

  • SHA1

    356d88efafa5538dc7526dcd4f7ca310ca6c3020

  • SHA256

    199781a11afb6bd56c42b0edef7bb175255c46dd25024212e9aaeb8cce3f8084

  • SHA512

    cc0e26da8c86612d604d3e3eb4259000d0f98a32a7371d39fb0cc9883a0a09f14c1cb246c9e8d330969f0bfd34edec4d15f0e145dc4685b946d31579f962f19b

  • SSDEEP

    6144:cH07dHH5YhBWPGmoQz33/g/vZAO2bWPKRQms0BC+:FNZYhBWOQAxQbWPks0BC+

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 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 1 IoCs
  • Suspicious use of WriteProcessMemory 14 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\ebe741ca96299771acc107b28aea9b2e.exe
    "C:\Users\Admin\AppData\Local\Temp\ebe741ca96299771acc107b28aea9b2e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2812
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 76
      2⤵
      • Program crash
      PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1200-5-0x00000000029D0000-0x00000000029E6000-memory.dmp

    Filesize

    88KB

  • memory/2812-0-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2812-1-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2812-2-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2812-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2812-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2812-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB