Malware Analysis Report

2024-11-13 18:55

Sample ID 241108-l3amaszkfw
Target 05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d
SHA256 05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d
Tags
smokeloader pub3 backdoor discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d

Threat Level: Known bad

The file 05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor discovery trojan

Smokeloader family

SmokeLoader

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Checks SCSI registry key(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-08 10:02

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-08 10:02

Reported

2024-11-08 10:05

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.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\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.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\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2276 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 2276 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 2276 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 2276 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 2276 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 2276 wrote to memory of 3684 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe

Processes

C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe

"C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe"

C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe

"C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.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 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/2276-1-0x0000000000690000-0x0000000000790000-memory.dmp

memory/2276-2-0x0000000002190000-0x0000000002199000-memory.dmp

memory/3684-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3684-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3684-5-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-08 10:02

Reported

2024-11-08 10:05

Platform

win7-20240903-en

Max time kernel

122s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.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\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1924 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 1924 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 1924 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 1924 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 1924 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 1924 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe
PID 1924 wrote to memory of 1944 N/A C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe

Processes

C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe

"C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe"

C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe

"C:\Users\Admin\AppData\Local\Temp\05d2f1e42b572e19503120cf5da0f96bca94c6ab96021b02013a8e6bc6e59f4d.exe"

Network

N/A

Files

memory/1944-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1924-5-0x0000000000510000-0x0000000000610000-memory.dmp

memory/1944-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1944-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1924-4-0x0000000000220000-0x0000000000229000-memory.dmp

memory/1944-7-0x0000000000400000-0x0000000000409000-memory.dmp

memory/1924-9-0x0000000000510000-0x0000000000610000-memory.dmp