Malware Analysis Report

2025-08-05 10:28

Sample ID 241107-jtbrws1mdq
Target 2cea614245de1ec3c3c5fb767acc051d
SHA256 b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d
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

b6217af649d93b7f3d6c33adb19441b924e96d0309bf0bcdfa81461f8bf1638d

Threat Level: Known bad

The file 2cea614245de1ec3c3c5fb767acc051d 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

Checks SCSI registry key(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-07 07:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-07 07:57

Reported

2024-11-07 07:59

Platform

win7-20241010-en

Max time kernel

13s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

smokeloader

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2580 set thread context of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

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\2cea614245de1ec3c3c5fb767acc051d.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2580 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2288 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2580 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe

"C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

Network

N/A

Files

memory/2580-0-0x0000000000383000-0x0000000000385000-memory.dmp

memory/2136-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2136-8-0x0000000000401000-0x0000000000409000-memory.dmp

memory/2136-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2136-1-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-07 07:57

Reported

2024-11-07 08:02

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

smokeloader

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2436 set thread context of 3828 N/A C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

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\2cea614245de1ec3c3c5fb767acc051d.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe

"C:\Users\Admin\AppData\Local\Temp\2cea614245de1ec3c3c5fb767acc051d.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/2436-0-0x00000000004C3000-0x00000000004C5000-memory.dmp

memory/3828-1-0x0000000000400000-0x0000000000409000-memory.dmp