Malware Analysis Report

2025-05-28 18:57

Sample ID 241110-tcp83azjds
Target c274ef57f23421357908adc54e8fa08fcae3757a74b572345719f6e4c9bf8270
SHA256 c274ef57f23421357908adc54e8fa08fcae3757a74b572345719f6e4c9bf8270
Tags
smokeloader backdoor discovery 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

c274ef57f23421357908adc54e8fa08fcae3757a74b572345719f6e4c9bf8270

Threat Level: Known bad

The file c274ef57f23421357908adc54e8fa08fcae3757a74b572345719f6e4c9bf8270 was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor discovery trojan

SmokeLoader

Smokeloader family

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 15:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 15:54

Reported

2024-11-10 15:57

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

smokeloader

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 832 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 832 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 832 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 832 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 832 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 832 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 832 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe

Processes

C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe

"C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe"

C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe

"C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe"

Network

N/A

Files

memory/832-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

memory/2128-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/832-5-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2128-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2128-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2128-7-0x0000000000400000-0x0000000000409000-memory.dmp

memory/832-9-0x00000000005B0000-0x00000000006B0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 15:54

Reported

2024-11-10 15:57

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

smokeloader

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe 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\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4828 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 4828 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 4828 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 4828 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 4828 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe
PID 4828 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe

Processes

C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe

"C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe"

C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe

"C:\Users\Admin\AppData\Local\Temp\79dc17855e41c95a144280cff99422932721209dd97cd28dcd985746e339397c.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 100.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/4828-1-0x0000000000720000-0x0000000000820000-memory.dmp

memory/4828-2-0x00000000006E0000-0x00000000006E9000-memory.dmp

memory/3004-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3004-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3004-7-0x0000000000400000-0x0000000000409000-memory.dmp