Malware Analysis Report

2024-11-30 04:51

Sample ID 240222-znqxmafa7x
Target 6958ACC382E71103A0B83D20BBBB37D2.exe
SHA256 078f586ebb8a22305540fb5982b2521f1b82e4317f286e13bab680fff0a9d164
Tags
smokeloader tfd5 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

078f586ebb8a22305540fb5982b2521f1b82e4317f286e13bab680fff0a9d164

Threat Level: Known bad

The file 6958ACC382E71103A0B83D20BBBB37D2.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader tfd5 backdoor trojan

SmokeLoader

Downloads MZ/PE file

Deletes itself

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-22 20:52

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-22 20:52

Reported

2024-02-22 20:52

Platform

win11-20240221-en

Max time kernel

26s

Max time network

27s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Downloads MZ/PE file

Deletes itself

Description Indicator Process Target
N/A N/A N/A N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A N/A N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3296 wrote to memory of 1420 N/A N/A C:\Windows\system32\cmd.exe
PID 3296 wrote to memory of 1420 N/A N/A C:\Windows\system32\cmd.exe
PID 1420 wrote to memory of 3836 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\reg.exe
PID 1420 wrote to memory of 3836 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\reg.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe

"C:\Users\Admin\AppData\Local\Temp\6958ACC382E71103A0B83D20BBBB37D2.exe"

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe

"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\98B6.bat" "

C:\Windows\system32\reg.exe

reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
RU 185.12.127.241:80 trad-einmyus.com tcp
IR 2.180.10.7:80 brusuax.com tcp

Files

memory/4596-1-0x0000000000510000-0x0000000000610000-memory.dmp

memory/4596-2-0x0000000000400000-0x000000000044A000-memory.dmp

memory/4596-3-0x0000000002290000-0x000000000229B000-memory.dmp

memory/3296-4-0x0000000000670000-0x0000000000686000-memory.dmp

memory/4596-5-0x0000000000400000-0x000000000044A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\98B6.bat

MD5 55cc761bf3429324e5a0095cab002113
SHA1 2cc1ef4542a4e92d4158ab3978425d517fafd16d
SHA256 d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a
SHA512 33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155