Malware Analysis Report

2025-01-02 05:31

Sample ID 240725-b49gxa1apm
Target 4f1c55e2da9222a2e994c3caa7c1d690N.exe
SHA256 d9f94c5aae1475216623c8458cbf9ad26a58fd61c12fe25836acfd1b8ee86321
Tags
smokeloader pub4 backdoor trojan discovery
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

d9f94c5aae1475216623c8458cbf9ad26a58fd61c12fe25836acfd1b8ee86321

Threat Level: Known bad

The file 4f1c55e2da9222a2e994c3caa7c1d690N.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub4 backdoor trojan discovery

SmokeLoader

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-25 01:43

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-25 01:43

Reported

2024-07-25 01:45

Platform

win7-20240704-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4f1c55e2da9222a2e994c3caa7c1d690N.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Processes

C:\Users\Admin\AppData\Local\Temp\4f1c55e2da9222a2e994c3caa7c1d690N.exe

"C:\Users\Admin\AppData\Local\Temp\4f1c55e2da9222a2e994c3caa7c1d690N.exe"

Network

N/A

Files

memory/1740-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/1740-2-0x0000000000230000-0x000000000023B000-memory.dmp

memory/1740-4-0x0000000000400000-0x0000000002085000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-25 01:43

Reported

2024-07-25 01:46

Platform

win10v2004-20240709-en

Max time kernel

102s

Max time network

105s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4f1c55e2da9222a2e994c3caa7c1d690N.exe"

Signatures

SmokeLoader

trojan backdoor 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\4f1c55e2da9222a2e994c3caa7c1d690N.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\4f1c55e2da9222a2e994c3caa7c1d690N.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\4f1c55e2da9222a2e994c3caa7c1d690N.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\4f1c55e2da9222a2e994c3caa7c1d690N.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4f1c55e2da9222a2e994c3caa7c1d690N.exe

"C:\Users\Admin\AppData\Local\Temp\4f1c55e2da9222a2e994c3caa7c1d690N.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2240 -ip 2240

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2240 -s 352

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/2240-1-0x0000000002250000-0x0000000002350000-memory.dmp

memory/2240-3-0x0000000000400000-0x000000000040B000-memory.dmp

memory/2240-2-0x0000000002230000-0x000000000223B000-memory.dmp

memory/2240-5-0x0000000000400000-0x000000000040B000-memory.dmp

memory/2240-4-0x0000000000400000-0x0000000002085000-memory.dmp