Malware Analysis Report

2024-12-08 00:43

Sample ID 240121-mlsbfsbcbl
Target SecuriteInfo.com.Win32.PWSX-gen.27268.14094
SHA256 b996a1613f4254a630d0b3889c71e1c500be05a9c7a03ec97130ca0998009b70
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

b996a1613f4254a630d0b3889c71e1c500be05a9c7a03ec97130ca0998009b70

Threat Level: Known bad

The file SecuriteInfo.com.Win32.PWSX-gen.27268.14094 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of UnmapMainImage

Suspicious behavior: MapViewOfSection

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of SendNotifyMessage

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-21 10:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-21 10:33

Reported

2024-01-21 10:36

Platform

win7-20231129-en

Max time kernel

150s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.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\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
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Suspicious use of SendNotifyMessage

Description Indicator Process Target
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Processes

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gxutc2c.com udp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp
BG 95.158.162.200:80 gxutc2c.com tcp

Files

memory/2332-3-0x0000000000400000-0x000000000043D000-memory.dmp

memory/2332-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2332-1-0x00000000008A0000-0x00000000009A0000-memory.dmp

memory/2332-5-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1360-4-0x0000000002F00000-0x0000000002F16000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-21 10:33

Reported

2024-01-21 10:36

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.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\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.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\SecuriteInfo.com.Win32.PWSX-gen.27268.exe

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.27268.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 gxutc2c.com udp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 9.254.120.175.in-addr.arpa udp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
KR 175.120.254.9:80 gxutc2c.com tcp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 187.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp

Files

memory/4400-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

memory/4400-3-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4400-2-0x00000000008B0000-0x00000000008BB000-memory.dmp

memory/3432-4-0x0000000003030000-0x0000000003046000-memory.dmp

memory/4400-5-0x0000000000400000-0x000000000043D000-memory.dmp