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Analysis

  • max time kernel
    145s
  • max time network
    185s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13/11/2023, 04:52

General

  • Target

    4155c038e9e3a850eb82d6cdb444229a1142f683ea9139f5eedd4b6d991788b9.exe

  • Size

    216KB

  • MD5

    e0eccfd84eaf2fbf613069e17d085ba7

  • SHA1

    a68050f4716f17cb95423fe0f67aae22b1ab2a42

  • SHA256

    4155c038e9e3a850eb82d6cdb444229a1142f683ea9139f5eedd4b6d991788b9

  • SHA512

    3a834c1aa29660030a9ddb6f170a9c01cb8ec9371d5ef0e10bca3febf014ac442943b46844c1b58239c50a792c970288de347766cc04374bfa8bb955870c7c03

  • SSDEEP

    3072:CWVg843ejWZeqSodCu/vGWQLq/dJ4jOMbhZflMOfPbKzbvburZS:lO6yrEu/+H2/dJ4jOMFvMOHbYe

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\4155c038e9e3a850eb82d6cdb444229a1142f683ea9139f5eedd4b6d991788b9.exe
    "C:\Users\Admin\AppData\Local\Temp\4155c038e9e3a850eb82d6cdb444229a1142f683ea9139f5eedd4b6d991788b9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Users\Admin\AppData\Local\Temp\4155c038e9e3a850eb82d6cdb444229a1142f683ea9139f5eedd4b6d991788b9.exe
      "C:\Users\Admin\AppData\Local\Temp\4155c038e9e3a850eb82d6cdb444229a1142f683ea9139f5eedd4b6d991788b9.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2760-3-0x0000000000820000-0x0000000000829000-memory.dmp

    Filesize

    36KB

  • memory/2760-2-0x0000000000950000-0x0000000000A50000-memory.dmp

    Filesize

    1024KB

  • memory/2944-5-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2944-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2944-1-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2944-7-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/3344-6-0x0000000001260000-0x0000000001276000-memory.dmp

    Filesize

    88KB