Malware Analysis Report

2024-11-13 18:56

Sample ID 240221-fnh28sbh5w
Target c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897
SHA256 c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897
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

c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897

Threat Level: Known bad

The file c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-21 05:01

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-02-21 05:01

Reported

2024-02-21 05:06

Platform

win7-20231215-en

Max time kernel

300s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe

"C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
SA 169.148.81.80:80 sjyey.com tcp
SA 169.148.81.80:80 sjyey.com tcp
SA 169.148.81.80:80 sjyey.com tcp
SA 169.148.81.80:80 sjyey.com tcp
SA 169.148.81.80:80 sjyey.com tcp
SA 169.148.81.80:80 sjyey.com tcp
SA 169.148.81.80:80 sjyey.com tcp

Files

memory/2220-2-0x0000000000220000-0x000000000022B000-memory.dmp

memory/2220-3-0x0000000000400000-0x0000000000446000-memory.dmp

memory/2220-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

memory/2220-5-0x0000000000400000-0x0000000000446000-memory.dmp

memory/1264-4-0x00000000029A0000-0x00000000029B6000-memory.dmp

memory/2220-6-0x0000000000220000-0x000000000022B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-21 05:01

Reported

2024-02-21 05:06

Platform

win10-20240214-en

Max time kernel

300s

Max time network

263s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.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\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe

"C:\Users\Admin\AppData\Local\Temp\c996728f5ce1b3f9aa5c0eae973989541ecb0646e05540b213ff89aa93d1b897.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sjyey.com udp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
US 8.8.8.8:53 112.84.119.211.in-addr.arpa udp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
KR 211.119.84.112:80 sjyey.com tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp

Files

memory/3508-1-0x0000000000640000-0x0000000000740000-memory.dmp

memory/3508-2-0x0000000000580000-0x000000000058B000-memory.dmp

memory/3508-3-0x0000000000400000-0x0000000000446000-memory.dmp

memory/3312-4-0x0000000001490000-0x00000000014A6000-memory.dmp

memory/3508-5-0x0000000000400000-0x0000000000446000-memory.dmp