Malware Analysis Report

2024-11-16 12:19

Sample ID 230626-fncv8age89
Target 6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27
SHA256 6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27
Tags
smokeloader backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27

Threat Level: Known bad

The file 6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27 was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor trojan

SmokeLoader

Suspicious use of SetThreadContext

Unsigned PE

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious use of SendNotifyMessage

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-06-26 05:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-06-26 05:00

Reported

2023-06-26 05:06

Platform

win7-20230621-en

Max time kernel

300s

Max time network

29s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.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\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1632 wrote to memory of 1464 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 1632 wrote to memory of 1464 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 1632 wrote to memory of 1464 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 1632 wrote to memory of 1464 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 1632 wrote to memory of 1464 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 1632 wrote to memory of 1464 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 1632 wrote to memory of 1464 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe

"C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe"

C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe

"C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe"

Network

N/A

Files

memory/1464-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1464-56-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1632-57-0x0000000000220000-0x0000000000229000-memory.dmp

memory/1464-58-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1372-59-0x00000000021B0000-0x00000000021C6000-memory.dmp

memory/1464-60-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-06-26 05:00

Reported

2023-06-26 05:06

Platform

win10v2004-20230621-en

Max time kernel

300s

Max time network

286s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
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Suspicious use of SendNotifyMessage

Description Indicator Process Target
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Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4660 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 4660 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 4660 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 4660 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 4660 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe
PID 4660 wrote to memory of 4212 N/A C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe

"C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe"

C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe

"C:\Users\Admin\AppData\Local\Temp\6fe7ba44d70927fd40d24aeb610d01888609122c75d35be1f4a0dbadbc6c0c27.exe"

Network

Country Destination Domain Proto
NL 40.126.32.138:443 tcp
NL 40.126.32.74:443 tcp
US 8.8.8.8:53 serverlogs37.xyz udp
IE 40.127.169.103:443 tcp
NL 40.126.32.140:443 tcp
IE 40.127.169.103:443 tcp
US 192.229.221.95:80 tcp
US 93.184.221.240:80 tcp
NL 20.190.160.17:443 tcp
IE 40.127.169.103:443 tcp
NL 40.126.32.134:443 tcp
IE 40.127.169.103:443 tcp
NL 20.190.160.14:443 tcp
IE 40.127.169.103:443 tcp
IE 40.127.169.103:443 tcp
IE 40.127.169.103:443 tcp
IE 40.127.169.103:443 tcp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
IE 40.127.169.103:443 tcp
IE 40.127.169.103:443 tcp

Files

memory/4212-134-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4660-135-0x0000000001C00000-0x0000000001C09000-memory.dmp

memory/4212-136-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4212-138-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3220-137-0x0000000000DA0000-0x0000000000DB6000-memory.dmp