Malware Analysis Report

2025-01-02 11:09

Sample ID 240311-nry7maba9z
Target c07ff6064acad9f4b013abdb9b6dc6f7
SHA256 5830dd917dbc7f34d6dc09b77052b0818ae91bae68e71d4843d2e5504e44f19d
Tags
smokeloader pub1 backdoor 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

5830dd917dbc7f34d6dc09b77052b0818ae91bae68e71d4843d2e5504e44f19d

Threat Level: Known bad

The file c07ff6064acad9f4b013abdb9b6dc6f7 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Executes dropped EXE

Deletes itself

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Checks SCSI registry key(s)

Modifies registry class

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-11 11:38

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-11 11:38

Reported

2024-03-11 11:41

Platform

win7-20240221-en

Max time kernel

150s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\svgvtdd 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\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\svgvtdd N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\svgvtdd N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\svgvtdd N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svgvtdd N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 556 wrote to memory of 2376 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\svgvtdd
PID 556 wrote to memory of 2376 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\svgvtdd
PID 556 wrote to memory of 2376 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\svgvtdd
PID 556 wrote to memory of 2376 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\svgvtdd

Processes

C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe

"C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {219C96B0-75D1-4383-A2C4-AB7B0EF79A07} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\svgvtdd

C:\Users\Admin\AppData\Roaming\svgvtdd

Network

Country Destination Domain Proto
US 8.8.8.8:53 aucmoney.com udp
US 8.8.8.8:53 thegymmum.com udp
US 8.8.8.8:53 atvcampingtrips.com udp
US 8.8.8.8:53 kuapakualaman.com udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 nasufmutlu.com udp

Files

memory/1368-1-0x0000000002D80000-0x0000000002E80000-memory.dmp

memory/1368-2-0x0000000000220000-0x0000000000229000-memory.dmp

memory/1368-3-0x0000000000400000-0x0000000002CBF000-memory.dmp

memory/1284-4-0x0000000002A00000-0x0000000002A16000-memory.dmp

memory/1368-5-0x0000000000400000-0x0000000002CBF000-memory.dmp

C:\Users\Admin\AppData\Roaming\svgvtdd

MD5 c07ff6064acad9f4b013abdb9b6dc6f7
SHA1 ed496c387901438568eae1f63c48fcf998b56a48
SHA256 5830dd917dbc7f34d6dc09b77052b0818ae91bae68e71d4843d2e5504e44f19d
SHA512 ca0b6b7c7f5a20b56d1dca11f81a100e0b15fb8df3f7cc1f3e28d99836873889d407ed4155d663c3139b3ecf7ce7c195a512c5035219b5b52e5247cc47ab7431

memory/2376-14-0x00000000002B0000-0x00000000003B0000-memory.dmp

memory/2376-15-0x0000000000400000-0x0000000002CBF000-memory.dmp

memory/1284-16-0x0000000002A20000-0x0000000002A36000-memory.dmp

memory/2376-18-0x0000000000400000-0x0000000002CBF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-11 11:38

Reported

2024-03-11 11:41

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\awgvtsd N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\awgvtsd N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\awgvtsd N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\awgvtsd N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ N/A N/A
Key created \REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\awgvtsd N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe

"C:\Users\Admin\AppData\Local\Temp\c07ff6064acad9f4b013abdb9b6dc6f7.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1776 -ip 1776

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1776 -s 368

C:\Users\Admin\AppData\Roaming\awgvtsd

C:\Users\Admin\AppData\Roaming\awgvtsd

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 4560 -ip 4560

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 368

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 187.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 100.5.17.2.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 196.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 81.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 aucmoney.com udp
US 8.8.8.8:53 thegymmum.com udp
US 8.8.8.8:53 atvcampingtrips.com udp
US 8.8.8.8:53 kuapakualaman.com udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 nasufmutlu.com udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 195.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 202.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 8.173.189.20.in-addr.arpa udp
GB 96.17.178.195:80 tcp

Files

memory/1776-1-0x0000000002EF0000-0x0000000002FF0000-memory.dmp

memory/1776-2-0x0000000002ED0000-0x0000000002ED9000-memory.dmp

memory/1776-3-0x0000000000400000-0x0000000002CBF000-memory.dmp

memory/3536-4-0x0000000002B40000-0x0000000002B56000-memory.dmp

memory/1776-7-0x0000000000400000-0x0000000002CBF000-memory.dmp

C:\Users\Admin\AppData\Roaming\awgvtsd

MD5 c07ff6064acad9f4b013abdb9b6dc6f7
SHA1 ed496c387901438568eae1f63c48fcf998b56a48
SHA256 5830dd917dbc7f34d6dc09b77052b0818ae91bae68e71d4843d2e5504e44f19d
SHA512 ca0b6b7c7f5a20b56d1dca11f81a100e0b15fb8df3f7cc1f3e28d99836873889d407ed4155d663c3139b3ecf7ce7c195a512c5035219b5b52e5247cc47ab7431

memory/4560-14-0x0000000002E40000-0x0000000002F40000-memory.dmp

memory/4560-15-0x0000000000400000-0x0000000002CBF000-memory.dmp

memory/3536-16-0x0000000000C40000-0x0000000000C56000-memory.dmp

memory/4560-19-0x0000000000400000-0x0000000002CBF000-memory.dmp