Overview

overview

10

Static

static

3

dridex

windows10-1703-x64

10

Analysis

  • max time kernel
    122s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    24/11/2023, 13:26

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General

  • Target

    b71f0fe2dea9ce3c5c36ad2063b40a03dd604b1f88929c21e61a78ebc9aaae02.exe

  • Size

    251KB

  • MD5

    50ffe5a6fcf5e4ede38e50e087398902

  • SHA1

    2ef932c86a1a25f96a7483f895d6a255c050363e

  • SHA256

    b71f0fe2dea9ce3c5c36ad2063b40a03dd604b1f88929c21e61a78ebc9aaae02

  • SHA512

    904403ce50ffbb434029566fa47b143f6b0b22ad2156fd2a1987c48eaa6a7299b18b312ce894d28768e8bbbdac8a3ee1490719d3499ff43cba21bfd065db422f

  • SSDEEP

    3072:C9GRn7LxgmKUwf58YAhzVwboQqAGKe3iJNJ+8fr5ROeVPE3:pRnxjK/h8YkKvfxJ7+83XPE

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 36 IoCs
  • Suspicious use of FindShellTrayWindow 45 IoCs
  • Suspicious use of SendNotifyMessage 24 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\b71f0fe2dea9ce3c5c36ad2063b40a03dd604b1f88929c21e61a78ebc9aaae02.exe
    "C:\Users\Admin\AppData\Local\Temp\b71f0fe2dea9ce3c5c36ad2063b40a03dd604b1f88929c21e61a78ebc9aaae02.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Users\Admin\AppData\Local\Temp\b71f0fe2dea9ce3c5c36ad2063b40a03dd604b1f88929c21e61a78ebc9aaae02.exe
      "C:\Users\Admin\AppData\Local\Temp\b71f0fe2dea9ce3c5c36ad2063b40a03dd604b1f88929c21e61a78ebc9aaae02.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2208
  • 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:1476
  • 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:1788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1476-17-0x0000000001FF0000-0x0000000001FF1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1788-24-0x000001F65AF00000-0x000001F65AF20000-memory.dmp

    Filesize

    128KB

    Download

  • memory/1788-26-0x000001F65B080000-0x000001F65B0A0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/2208-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2208-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2208-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/3152-1-0x00000000007D0000-0x00000000008D0000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/3152-2-0x0000000000630000-0x0000000000639000-memory.dmp

    Filesize

    36KB

    Download

  • memory/3284-5-0x0000000000CE0000-0x0000000000CF6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/3284-13-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

    Filesize

    4KB

    Download