Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2023, 05:02

General

  • Target

    6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe

  • Size

    203KB

  • MD5

    389b3a8cd173795bd03f392e60e07de0

  • SHA1

    a63eb3b87c5318155d353e918aacd76441aad10a

  • SHA256

    6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920

  • SHA512

    5840bc3237b36062d2d90bff6047b5ef63b216b3aed23c1e497cccdf523fc000ea32f522b7aa12a7f8419048fe5f7c48ab41e013a70f7b93cc34e71b6df2a704

  • SSDEEP

    3072:xXJ11Bmd24i7SUFbUeSYgOpr76G5kQv2lwt46M6WHLg051ZGifzaC:Vf1kdpimUFySr7P5kQea5MHrg8Z1L

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.

  • 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\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe
    "C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3636
    • C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe
      "C:\Users\Admin\AppData\Local\Temp\6cda9738bb08c0bc98605e33541057483a71b2b9edb3d6c23a4e17f848223920.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1440

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1440-2-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/1440-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/1440-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3160-5-0x0000000000D80000-0x0000000000D96000-memory.dmp

          Filesize

          88KB

        • memory/3636-0-0x0000000000770000-0x0000000000785000-memory.dmp

          Filesize

          84KB

        • memory/3636-1-0x0000000002310000-0x0000000002319000-memory.dmp

          Filesize

          36KB

        • memory/3636-3-0x0000000000770000-0x0000000000785000-memory.dmp

          Filesize

          84KB