Analysis

  • max time kernel
    150s
  • max time network
    135s
  • 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, 10:54

General

  • Target

    c602996ab1eb8c5e50e7297908f140f054c3497a2d8398bc891083e143c374a0.exe

  • Size

    277KB

  • MD5

    2a90ed3d925a91d6ed73d587583b908d

  • SHA1

    bc4aacd685950d3314450a62bbf93040f1424c01

  • SHA256

    c602996ab1eb8c5e50e7297908f140f054c3497a2d8398bc891083e143c374a0

  • SHA512

    3e4dcde4d0b2b281c7ca955bb31e5c77fd5ec2e819c3858dda03b2437aad9bf0c848b85973e19216110e0ebd26a0477da3abc4a4d44cd4dfaf9a5adfc404792f

  • SSDEEP

    3072:iqZEUPX4rq8FPO9MF/Nv3ry6q8E69Zp8Ljt:xxPX4+SPOA3rsIe

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
  • Suspicious use of SetThreadContext 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 6 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\c602996ab1eb8c5e50e7297908f140f054c3497a2d8398bc891083e143c374a0.exe
    "C:\Users\Admin\AppData\Local\Temp\c602996ab1eb8c5e50e7297908f140f054c3497a2d8398bc891083e143c374a0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\Users\Admin\AppData\Local\Temp\c602996ab1eb8c5e50e7297908f140f054c3497a2d8398bc891083e143c374a0.exe
      "C:\Users\Admin\AppData\Local\Temp\c602996ab1eb8c5e50e7297908f140f054c3497a2d8398bc891083e143c374a0.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2512

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2512-1-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2512-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2512-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3044-2-0x0000000000840000-0x0000000000940000-memory.dmp

          Filesize

          1024KB

        • memory/3044-3-0x0000000000790000-0x0000000000799000-memory.dmp

          Filesize

          36KB

        • memory/3176-5-0x0000000000F80000-0x0000000000F96000-memory.dmp

          Filesize

          88KB