Analysis

  • max time kernel
    150s
  • max time network
    152s
  • 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, 14:22

General

  • Target

    8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe

  • Size

    321KB

  • MD5

    bb0b7537510aed6d81e8e487dc0a0c10

  • SHA1

    09231a399a4deeffbacb56bbc30709e01b1e93fe

  • SHA256

    8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e

  • SHA512

    f57cd3b64efca452486b35ba956bc16dc41d8bc49a6adaf6f11b665d877d482e2e249fa66248edfd17a7c621a831c39f6c33a8ae748e3231e262d8162921c417

  • SSDEEP

    3072:4J3zeqhT3jkb0ol++/PxWODDmK3iZ1YZsCaH08s7AoWFgfbLcrtJ4B:K3zrhrjkbLvnxNCKShCa10AoWev

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\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe
    "C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe
      "C:\Users\Admin\AppData\Local\Temp\8bf045ea729f19fbdb48fb119dfeadf0e3d77ece8ff5b72140b6badac09b392e.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2816

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1888-1-0x0000000002680000-0x0000000002780000-memory.dmp

          Filesize

          1024KB

        • memory/1888-2-0x00000000042F0000-0x00000000042F9000-memory.dmp

          Filesize

          36KB

        • memory/2816-3-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2816-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/2816-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3192-5-0x0000000002A90000-0x0000000002AA6000-memory.dmp

          Filesize

          88KB