Analysis

  • max time kernel
    150s
  • max time network
    147s
  • 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, 12:32

General

  • Target

    f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe

  • Size

    211KB

  • MD5

    62af6b97500284381cc7e5c3898febc5

  • SHA1

    3a5d84698f124febdd75bff683b59b4c7952b632

  • SHA256

    f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5

  • SHA512

    135d7dd593d96fbdadcecff8bbad19b040c58e9378a79cbbe2f31acf16547dabe8986a283f3bab73eb124a8848ecc3cc9af4b101b5d1142c65876f99a991f699

  • SSDEEP

    3072:OXykyagapwl24UiMSNNp27hPZ5QnEUa5FsOo+gzYXk:WdggK24GamVPrKTqsOhH

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 AdjustPrivilegeToken 8 IoCs
  • Suspicious use of FindShellTrayWindow 2 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\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe
    "C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2064
    • C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe
      "C:\Users\Admin\AppData\Local\Temp\f0659054cb13ab88840c2f1a57801047f94107a0cbaa81243562a88d0c9a9db5.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4640

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2064-0-0x00000000006F0000-0x0000000000705000-memory.dmp

          Filesize

          84KB

        • memory/2064-1-0x00000000021B0000-0x00000000021B9000-memory.dmp

          Filesize

          36KB

        • memory/2064-3-0x00000000006F0000-0x0000000000705000-memory.dmp

          Filesize

          84KB

        • memory/2504-5-0x0000000001430000-0x0000000001446000-memory.dmp

          Filesize

          88KB

        • memory/4640-2-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4640-4-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB

        • memory/4640-6-0x0000000000400000-0x0000000000409000-memory.dmp

          Filesize

          36KB