Analysis

  • max time kernel
    151s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/09/2023, 17:11

General

  • Target

    e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89.exe

  • Size

    310KB

  • MD5

    9201a6faa902397373c885d6d69ece9e

  • SHA1

    7ca9268955de314da0e5d154afca5d27403073a7

  • SHA256

    e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89

  • SHA512

    0a4952173c000338444f5df32b64369f724d3040ede8c6dd32265eaed88ced0e951596a201fcb404f5ca4f7857ad4673f803c346adff19fcd025e7b374b3961a

  • SSDEEP

    6144:yuX2qVTqEhFrY/m+FFMaYMhCTI6NRPTh8XI/:nVTq+VY/moDYMsTvR7aQ

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.

  • 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\e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89.exe
    "C:\Users\Admin\AppData\Local\Temp\e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Users\Admin\AppData\Local\Temp\e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89.exe
      "C:\Users\Admin\AppData\Local\Temp\e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:5100
  • C:\Users\Admin\AppData\Roaming\vaevhur
    C:\Users\Admin\AppData\Roaming\vaevhur
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1844
    • C:\Users\Admin\AppData\Roaming\vaevhur
      C:\Users\Admin\AppData\Roaming\vaevhur
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:3892

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          310KB

          MD5

          9201a6faa902397373c885d6d69ece9e

          SHA1

          7ca9268955de314da0e5d154afca5d27403073a7

          SHA256

          e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89

          SHA512

          0a4952173c000338444f5df32b64369f724d3040ede8c6dd32265eaed88ced0e951596a201fcb404f5ca4f7857ad4673f803c346adff19fcd025e7b374b3961a

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

          Filesize

          310KB

          MD5

          9201a6faa902397373c885d6d69ece9e

          SHA1

          7ca9268955de314da0e5d154afca5d27403073a7

          SHA256

          e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89

          SHA512

          0a4952173c000338444f5df32b64369f724d3040ede8c6dd32265eaed88ced0e951596a201fcb404f5ca4f7857ad4673f803c346adff19fcd025e7b374b3961a

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

          Filesize

          310KB

          MD5

          9201a6faa902397373c885d6d69ece9e

          SHA1

          7ca9268955de314da0e5d154afca5d27403073a7

          SHA256

          e52dd9c3f4a93bb109e3d72602d7000f02c83a230fa392b0e3ae1ac039a58b89

          SHA512

          0a4952173c000338444f5df32b64369f724d3040ede8c6dd32265eaed88ced0e951596a201fcb404f5ca4f7857ad4673f803c346adff19fcd025e7b374b3961a

        • memory/1120-1-0x0000000002890000-0x0000000002990000-memory.dmp

          Filesize

          1024KB

        • memory/1120-2-0x0000000002850000-0x0000000002859000-memory.dmp

          Filesize

          36KB

        • memory/1844-16-0x00000000028C0000-0x00000000029C0000-memory.dmp

          Filesize

          1024KB

        • memory/3164-5-0x00000000006A0000-0x00000000006B6000-memory.dmp

          Filesize

          88KB

        • memory/3164-19-0x0000000002A30000-0x0000000002A46000-memory.dmp

          Filesize

          88KB

        • memory/3892-22-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/5100-3-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/5100-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/5100-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB