Malware Analysis Report

2024-12-08 00:43

Sample ID 240123-bq5a2aeehk
Target 5975d5f166114533acd70bd68ee34980.bin
SHA256 1f7d38a9b1f85843ef87d716ddeee8039aabeb4b470940e8c3c4bb7317ac4136
Tags
smokeloader pub3 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

1f7d38a9b1f85843ef87d716ddeee8039aabeb4b470940e8c3c4bb7317ac4136

Threat Level: Known bad

The file 5975d5f166114533acd70bd68ee34980.bin was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-23 01:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-23 01:21

Reported

2024-01-23 01:24

Platform

win7-20231215-en

Max time kernel

150s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.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\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe

"C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gxutc2c.com udp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp
PE 190.12.87.61:80 gxutc2c.com tcp

Files

memory/2376-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2376-1-0x0000000000520000-0x0000000000620000-memory.dmp

memory/2376-3-0x0000000000400000-0x000000000043B000-memory.dmp

memory/1076-4-0x0000000002F10000-0x0000000002F26000-memory.dmp

memory/2376-5-0x0000000000400000-0x000000000043B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-23 01:21

Reported

2024-01-23 01:24

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.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 queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.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\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe

"C:\Users\Admin\AppData\Local\Temp\97d96881923faf0f965623a5097bb5e7bd87ecce22fe496e17da1242f0fb8930.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 gxutc2c.com udp
KR 211.171.233.129:80 gxutc2c.com tcp
US 8.8.8.8:53 129.233.171.211.in-addr.arpa udp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
US 8.8.8.8:53 140.71.91.104.in-addr.arpa udp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

memory/2660-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

memory/2660-2-0x00000000005B0000-0x00000000005BB000-memory.dmp

memory/2660-3-0x0000000000400000-0x000000000043B000-memory.dmp

memory/3388-4-0x0000000003540000-0x0000000003556000-memory.dmp

memory/2660-5-0x0000000000400000-0x000000000043B000-memory.dmp