Malware Analysis Report

2025-08-10 17:40

Sample ID 230916-ahsftsga2w
Target a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50
SHA256 a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50
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 Overview

score
10/10

SHA256

a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50

Threat Level: Known bad

The file a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-16 00:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-16 00:13

Reported

2023-09-16 00:15

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.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\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.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\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 764 wrote to memory of 3372 N/A C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
PID 764 wrote to memory of 3372 N/A C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
PID 764 wrote to memory of 3372 N/A C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
PID 764 wrote to memory of 3372 N/A C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
PID 764 wrote to memory of 3372 N/A C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe
PID 764 wrote to memory of 3372 N/A C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe

"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"

C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe

"C:\Users\Admin\AppData\Local\Temp\a3f12a86956b46caf03b7ab7a7802dc4e6f63d62f2983c9e5fa4b12983525b50.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 25.63.96.20.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 9.228.82.20.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 14.173.189.20.in-addr.arpa udp

Files

memory/764-1-0x0000000000860000-0x0000000000960000-memory.dmp

memory/764-2-0x0000000000800000-0x0000000000809000-memory.dmp

memory/3372-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3372-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3372-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3168-5-0x0000000001490000-0x00000000014A6000-memory.dmp