Malware Analysis Report

2025-08-10 17:41

Sample ID 230916-q3ch4sah4s
Target aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe
SHA256 aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba
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

aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba

Threat Level: Known bad

The file aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-16 13:46

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-16 13:46

Reported

2023-09-16 13:49

Platform

win7-20230831-en

Max time kernel

150s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.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\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_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\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe

"C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gudintas.at udp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp
KR 211.181.24.133:80 gudintas.at tcp

Files

memory/1368-1-0x00000000007B0000-0x00000000008B0000-memory.dmp

memory/1368-2-0x0000000000400000-0x0000000000711000-memory.dmp

memory/1368-3-0x0000000000220000-0x0000000000229000-memory.dmp

memory/1268-4-0x0000000002B60000-0x0000000002B76000-memory.dmp

memory/1368-5-0x0000000000400000-0x0000000000711000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-09-16 13:46

Reported

2023-09-16 13:49

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.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\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_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\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe N/A

Suspicious use of UnmapMainImage

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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe

"C:\Users\Admin\AppData\Local\Temp\aa918d4dd7706951fc290b6a5d3ba0e48acc5443056894ee3aad1baa52f412ba_JC.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 126.22.238.8.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 gudintas.at udp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
US 8.8.8.8:53 159.86.170.181.in-addr.arpa udp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
AR 181.170.86.159:80 gudintas.at tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
AR 181.170.86.159:80 gudintas.at tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp

Files

memory/4112-1-0x00000000009F0000-0x0000000000AF0000-memory.dmp

memory/4112-3-0x00000000009C0000-0x00000000009C9000-memory.dmp

memory/4112-2-0x0000000000400000-0x0000000000711000-memory.dmp

memory/4112-5-0x0000000000400000-0x0000000000711000-memory.dmp

memory/3172-4-0x0000000000720000-0x0000000000736000-memory.dmp