Malware Analysis Report

2025-04-03 18:01

Sample ID 241109-sp6adaxapg
Target ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca
SHA256 ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca
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

ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca

Threat Level: Known bad

The file ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor discovery trojan

SmokeLoader

Smokeloader family

Suspicious use of SetThreadContext

Program crash

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 15:19

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 15:19

Reported

2024-11-09 15:21

Platform

win7-20240903-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

smokeloader

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2204 set thread context of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.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\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2204 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2980 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 536 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2204 wrote to memory of 304 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\SysWOW64\WerFault.exe
PID 2204 wrote to memory of 304 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\SysWOW64\WerFault.exe
PID 2204 wrote to memory of 304 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\SysWOW64\WerFault.exe
PID 2204 wrote to memory of 304 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe

"C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.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"

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2204 -s 88

Network

N/A

Files

memory/2204-0-0x00000000011D1000-0x00000000011D3000-memory.dmp

memory/536-2-0x0000000000400000-0x0000000000409000-memory.dmp

memory/536-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/536-1-0x0000000000400000-0x0000000000409000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 15:19

Reported

2024-11-09 15:21

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Smokeloader family

smokeloader

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4544 set thread context of 4964 N/A C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.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\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.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\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe

"C:\Users\Admin\AppData\Local\Temp\ba145aa9cd5a74b9f49f8ce590ad18899bc464643f00d792e01a68d44cee10ca.exe"

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 276

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 101.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 68.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/4544-0-0x0000000000A01000-0x0000000000A03000-memory.dmp

memory/4964-1-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4964-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/4964-5-0x0000000000400000-0x0000000000409000-memory.dmp