Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    22/09/2023, 10:25

General

  • Target

    9d35150a447696b7c6d5bcf71ff97de4738e5ec528819f537f47e565b9ba14a4.exe

  • Size

    215KB

  • MD5

    9b75c8d33264c955cddacd6e6f8ed53f

  • SHA1

    e957af9fe51eff34d62b7c9190d695554f8bf398

  • SHA256

    9d35150a447696b7c6d5bcf71ff97de4738e5ec528819f537f47e565b9ba14a4

  • SHA512

    561d606863e9a73430c9fbd437d219a00b403f40f6c1bb7fc6905eec790b74496d31f6c51e9240a559f8549240be8e2919725874fd9c25568866fa8fcf623e24

  • SSDEEP

    3072:6XyY+u/FEpBt5pxygeCP4Xy7iNvfPnO905Fv8YOzT:a7+CCp3XlNwXy7yPnOaUY

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\9d35150a447696b7c6d5bcf71ff97de4738e5ec528819f537f47e565b9ba14a4.exe
    "C:\Users\Admin\AppData\Local\Temp\9d35150a447696b7c6d5bcf71ff97de4738e5ec528819f537f47e565b9ba14a4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4360
    • C:\Users\Admin\AppData\Local\Temp\9d35150a447696b7c6d5bcf71ff97de4738e5ec528819f537f47e565b9ba14a4.exe
      "C:\Users\Admin\AppData\Local\Temp\9d35150a447696b7c6d5bcf71ff97de4738e5ec528819f537f47e565b9ba14a4.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2940

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2940-2-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2940-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2940-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3240-5-0x0000000000940000-0x0000000000956000-memory.dmp

          Filesize

          88KB

        • memory/4360-0-0x0000000000620000-0x0000000000635000-memory.dmp

          Filesize

          84KB

        • memory/4360-1-0x00000000001C0000-0x00000000001C9000-memory.dmp

          Filesize

          36KB

        • memory/4360-3-0x0000000000620000-0x0000000000635000-memory.dmp

          Filesize

          84KB