Analysis

  • max time kernel
    156s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/07/2023, 14:54

General

  • Target

    2f3be384c4e951d1599cf06ef.exe

  • Size

    233KB

  • MD5

    9defc0b6fdc6fc445e9d93b1d191ec59

  • SHA1

    60e85790189d4b4b066672e35eae7c1e2ec0dfa4

  • SHA256

    2f3be384c4e951d1599cf06ef4e6bbf2e5d4335a1f251b6dd576c0669ef266af

  • SHA512

    4146667d54663f04ac0b3def982e01f4452ed48d96ab8734c9cffe9f282c5689ce98c09463d60e5d1b5035332f02f688f1013d6c9c43563ebeb4b067d0d37aad

  • SSDEEP

    3072:OV4IglKhU2/dDGHfDH/NW3NwxuINxtIx/4:1rK+2pggNwvx

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 UnmapMainImage 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\2f3be384c4e951d1599cf06ef.exe
    "C:\Users\Admin\AppData\Local\Temp\2f3be384c4e951d1599cf06ef.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:60
    • C:\Users\Admin\AppData\Local\Temp\2f3be384c4e951d1599cf06ef.exe
      "C:\Users\Admin\AppData\Local\Temp\2f3be384c4e951d1599cf06ef.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3840

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/60-138-0x0000000001D90000-0x0000000001D99000-memory.dmp

          Filesize

          36KB

        • memory/3204-140-0x0000000002CB0000-0x0000000002CC6000-memory.dmp

          Filesize

          88KB

        • memory/3840-137-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3840-139-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/3840-141-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB