Malware Analysis Report

2025-08-10 17:40

Sample ID 230916-p4j4xaae9x
Target 6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
SHA256 6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa
Tags
smokeloader pub1 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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa

Threat Level: Known bad

The file 6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-16 12:52

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2023-09-16 12:52

Reported

2023-09-16 12:55

Platform

win7-20230831-en

Max time kernel

150s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.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\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1832 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1832 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1832 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1832 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1832 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1832 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1832 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe

"C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe"

C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe

"C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 host-file-host6.com udp
US 8.8.8.8:53 host-host-file8.com udp
NL 194.169.175.127:80 host-host-file8.com tcp

Files

memory/1832-1-0x00000000008D0000-0x00000000009D0000-memory.dmp

memory/2392-5-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2392-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1832-2-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2392-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2392-8-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1224-7-0x0000000002A50000-0x0000000002A66000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-16 12:52

Reported

2023-09-16 12:55

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.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\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
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Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1004 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1004 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1004 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1004 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1004 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe
PID 1004 wrote to memory of 1748 N/A C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe

"C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe"

C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe

"C:\Users\Admin\AppData\Local\Temp\6e3619863e6e7e7171a706a45fcd6950a71a7efdaddec2312e81ad956d4cd7fa_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 54.120.234.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 host-file-host6.com udp
US 8.8.8.8:53 host-host-file8.com udp
NL 194.169.175.127:80 host-host-file8.com tcp
US 8.8.8.8:53 127.175.169.194.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 254.20.238.8.in-addr.arpa udp
US 8.8.8.8:53 254.1.248.8.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 226.162.46.104.in-addr.arpa udp

Files

memory/1004-1-0x00000000008F0000-0x00000000009F0000-memory.dmp

memory/1004-2-0x00000000008D0000-0x00000000008D9000-memory.dmp

memory/1748-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1748-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1748-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/776-5-0x00000000030F0000-0x0000000003106000-memory.dmp