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Overview

overview

10

Static

static

3

dridex

windows10-1703-x64

10

Analysis

  • max time kernel
    125s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    21/11/2023, 01:45

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General

  • Target

    f9492678fcf63273c3b6750445e307101b9cae1f968a72faa5b6f4de977913ef.exe

  • Size

    231KB

  • MD5

    fd4b61276668c94ed75a1054cd475e35

  • SHA1

    290a8419d5faf0caa9bedf1b98d408678f91ceb0

  • SHA256

    f9492678fcf63273c3b6750445e307101b9cae1f968a72faa5b6f4de977913ef

  • SHA512

    127d2c89a4c6ec741d605bf22709087033c335d5a998a308dea66a8a883aefbac078c3da508b35ec5cae10e632ab6fd7c96b13b1b4adb5cf961ce2f72cd5c306

  • SSDEEP

    3072:FDX75tXkud8zD/ebO+ksSbdhOKroPfM3/cj/SKmcjBQOmZR1p:Fb75OumzDetksSbnORu/6McVQFR

Score
10/10
smokeloaderup4backdoorpersistencetrojan

Malware Config

Extracted

Family

smokeloader

Botnet

up4

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-file0.com/

http://file-file-file1.com/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 29 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Modifies registry class 29 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of FindShellTrayWindow 44 IoCs
  • Suspicious use of SendNotifyMessage 23 IoCs
  • Suspicious use of SetWindowsHookEx 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\f9492678fcf63273c3b6750445e307101b9cae1f968a72faa5b6f4de977913ef.exe
    "C:\Users\Admin\AppData\Local\Temp\f9492678fcf63273c3b6750445e307101b9cae1f968a72faa5b6f4de977913ef.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\Users\Admin\AppData\Local\Temp\f9492678fcf63273c3b6750445e307101b9cae1f968a72faa5b6f4de977913ef.exe
      "C:\Users\Admin\AppData\Local\Temp\f9492678fcf63273c3b6750445e307101b9cae1f968a72faa5b6f4de977913ef.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2896
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Enumerates connected drives
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:676
  • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
    1⤵
    • Drops file in Windows directory
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:96

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/96-24-0x0000026DAE220000-0x0000026DAE240000-memory.dmp

    Filesize

    128KB

    Download

  • memory/96-27-0x0000026DAE3A0000-0x0000026DAE3C0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/676-17-0x0000000004190000-0x0000000004191000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2896-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2896-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2896-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2980-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2980-2-0x0000000000900000-0x0000000000909000-memory.dmp

    Filesize

    36KB

    Download

  • memory/3104-5-0x00000000014D0000-0x00000000014E6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/3104-13-0x00000000014C0000-0x00000000014C1000-memory.dmp

    Filesize

    4KB

    Download