Overview

overview

10

Static

static

3

dridex

windows10-1703-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    131s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    20-09-2023 23:28

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General

  • Target

    5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb.exe

  • Size

    208KB

  • MD5

    732bf97a0f4b4d1ace191c69e6d016d6

  • SHA1

    0fed83c5e484c149de1110ec3262a9eacfce879b

  • SHA256

    5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb

  • SHA512

    d0de91552ae9d1efc74904d0e7369da6e75ac8b0b6ad2f6c9f71a38f71c8e1819fb64bc51c6b39fc3bd52a56c714ddc0ddf4f99923bf3c6e195cab1177c373a5

  • SSDEEP

    3072:vXtehSyYBMxvpcAY+4xhnXyp4plC3JTR5y1KiqxE5B60T/uL6:f8lSMxvpkhnXyp4plC3pR56q660TmL6

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
  • Executes dropped EXE 2 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 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 32 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 48 IoCs
  • Suspicious use of FindShellTrayWindow 44 IoCs
  • Suspicious use of SendNotifyMessage 23 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 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\5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb.exe
    "C:\Users\Admin\AppData\Local\Temp\5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Users\Admin\AppData\Local\Temp\5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb.exe
      "C:\Users\Admin\AppData\Local\Temp\5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4284
  • 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:4348
  • 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:4540
  • C:\Users\Admin\AppData\Roaming\rtdvvrc
    C:\Users\Admin\AppData\Roaming\rtdvvrc
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4576
    • C:\Users\Admin\AppData\Roaming\rtdvvrc
      C:\Users\Admin\AppData\Roaming\rtdvvrc
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      PID:1132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\rtdvvrc
    Filesize

    208KB

    MD5

    732bf97a0f4b4d1ace191c69e6d016d6

    SHA1

    0fed83c5e484c149de1110ec3262a9eacfce879b

    SHA256

    5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb

    SHA512

    d0de91552ae9d1efc74904d0e7369da6e75ac8b0b6ad2f6c9f71a38f71c8e1819fb64bc51c6b39fc3bd52a56c714ddc0ddf4f99923bf3c6e195cab1177c373a5

    Download Submit

  • C:\Users\Admin\AppData\Roaming\rtdvvrc
    Filesize

    208KB

    MD5

    732bf97a0f4b4d1ace191c69e6d016d6

    SHA1

    0fed83c5e484c149de1110ec3262a9eacfce879b

    SHA256

    5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb

    SHA512

    d0de91552ae9d1efc74904d0e7369da6e75ac8b0b6ad2f6c9f71a38f71c8e1819fb64bc51c6b39fc3bd52a56c714ddc0ddf4f99923bf3c6e195cab1177c373a5

    Download Submit

  • C:\Users\Admin\AppData\Roaming\rtdvvrc
    Filesize

    208KB

    MD5

    732bf97a0f4b4d1ace191c69e6d016d6

    SHA1

    0fed83c5e484c149de1110ec3262a9eacfce879b

    SHA256

    5afe349270ca762ff48490d711f928a9ca9062d09c076594ed440a43ddba66cb

    SHA512

    d0de91552ae9d1efc74904d0e7369da6e75ac8b0b6ad2f6c9f71a38f71c8e1819fb64bc51c6b39fc3bd52a56c714ddc0ddf4f99923bf3c6e195cab1177c373a5

    Download Submit

  • memory/3040-0-0x00000000006B0000-0x00000000006C5000-memory.dmp

    Filesize

    84KB

    Download

  • memory/3040-1-0x00000000001C0000-0x00000000001C9000-memory.dmp

    Filesize

    36KB

    Download

  • memory/3040-3-0x00000000006B0000-0x00000000006C5000-memory.dmp

    Filesize

    84KB

    Download

  • memory/3232-5-0x0000000003000000-0x0000000003016000-memory.dmp

    Filesize

    88KB

    Download

  • memory/3232-13-0x00000000013D0000-0x00000000013D1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4284-6-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/4284-4-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/4284-2-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

    Download

  • memory/4348-17-0x0000000004AD0000-0x0000000004AD1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/4540-24-0x000002532A9C0000-0x000002532A9E0000-memory.dmp

    Filesize

    128KB

    Download

  • memory/4540-29-0x000002532AB40000-0x000002532AB60000-memory.dmp

    Filesize

    128KB

    Download