Overview

overview

10

Static

static

3

dridex

windows10-1703-x64

10

Analysis

  • max time kernel
    127s
  • max time network
    136s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07/11/2023, 20:35

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General

  • Target

    ac8aa7b717af54cead5778f8b988773e55084022ea21add23fafceb266740434.exe

  • Size

    280KB

  • MD5

    26859b502df0ef0c1bcbefc3620abbed

  • SHA1

    be8e51fc5e3a545f74335fb5e61ea199d7d33ef4

  • SHA256

    ac8aa7b717af54cead5778f8b988773e55084022ea21add23fafceb266740434

  • SHA512

    dad07f95130f880f710e7dd4db3c6c96589df630e5d3c13ba7fa87c9a8aa79cbbbc2172c3302eb8d88cb12ad14b12e98f2da4152684bcd581ad92448d8fb34ee

  • SSDEEP

    3072:IJu/MhotNvIlzFT50ppI5vfkao3NfR1YyuMGqrA/Tb5Y1jcQrPNB:E5otk5T50UbYNISrayKq

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 40 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\ac8aa7b717af54cead5778f8b988773e55084022ea21add23fafceb266740434.exe
    "C:\Users\Admin\AppData\Local\Temp\ac8aa7b717af54cead5778f8b988773e55084022ea21add23fafceb266740434.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Users\Admin\AppData\Local\Temp\ac8aa7b717af54cead5778f8b988773e55084022ea21add23fafceb266740434.exe
      "C:\Users\Admin\AppData\Local\Temp\ac8aa7b717af54cead5778f8b988773e55084022ea21add23fafceb266740434.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2180
  • 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:3240
  • 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:5028

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2180-3-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2180-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2180-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/2360-1-0x0000000000B80000-0x0000000000C80000-memory.dmp

    Filesize

    1024KB

    Download

  • memory/2360-2-0x0000000000B60000-0x0000000000B69000-memory.dmp

    Filesize

    36KB

    Download

  • memory/3112-5-0x00000000005E0000-0x00000000005F6000-memory.dmp

    Filesize

    88KB

    Download

  • memory/3112-13-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3240-17-0x0000000002F40000-0x0000000002F41000-memory.dmp

    Filesize

    4KB

    Download

  • memory/5028-24-0x000002C59D640000-0x000002C59D660000-memory.dmp

    Filesize

    128KB

    Download

  • memory/5028-27-0x000002C59D7C0000-0x000002C59D7E0000-memory.dmp

    Filesize

    128KB

    Download