Malware Analysis Report

2025-08-06 03:42

Sample ID 230922-p78xfaaa55
Target 55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6
SHA256 55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6
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

55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6

Threat Level: Known bad

The file 55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6 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

Suspicious behavior: EnumeratesProcesses

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-22 12:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-22 12:59

Reported

2023-09-22 13:02

Platform

win10-20230915-en

Max time kernel

150s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

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\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.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\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1644 wrote to memory of 4720 N/A C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe
PID 1644 wrote to memory of 4720 N/A C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe
PID 1644 wrote to memory of 4720 N/A C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe
PID 1644 wrote to memory of 4720 N/A C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe
PID 1644 wrote to memory of 4720 N/A C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe
PID 1644 wrote to memory of 4720 N/A C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe

"C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe"

C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.exe

"C:\Users\Admin\AppData\Local\Temp\55627a75c4cdc87a913050d1051c57c9d3ceb0aad3e6453a46ad17c9beaa5ef6.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
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 127.175.169.194.in-addr.arpa udp
US 8.8.8.8:53 66.112.168.52.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp

Files

memory/1644-0-0x0000000001F30000-0x0000000001F45000-memory.dmp

memory/1644-1-0x00000000001C0000-0x00000000001C9000-memory.dmp

memory/4720-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1644-3-0x0000000001F30000-0x0000000001F45000-memory.dmp

memory/4720-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4720-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3268-5-0x0000000000850000-0x0000000000866000-memory.dmp