Malware Analysis Report

2025-08-06 03:42

Sample ID 230921-ywcjjacd39
Target 734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af
SHA256 734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af
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 Overview

score
10/10

SHA256

734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af

Threat Level: Known bad

The file 734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Executes dropped EXE

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

Suspicious behavior: GetForegroundWindowSpam

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-09-21 20:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-09-21 20:07

Reported

2023-09-21 20:10

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Executes dropped EXE

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

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\cadeaut N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\cadeaut N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\cadeaut N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
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\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\cadeaut 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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2244 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe
PID 2244 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe
PID 2244 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe
PID 2244 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe
PID 2244 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe
PID 2244 wrote to memory of 3044 N/A C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe
PID 1400 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Roaming\cadeaut C:\Users\Admin\AppData\Roaming\cadeaut
PID 1400 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Roaming\cadeaut C:\Users\Admin\AppData\Roaming\cadeaut
PID 1400 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Roaming\cadeaut C:\Users\Admin\AppData\Roaming\cadeaut
PID 1400 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Roaming\cadeaut C:\Users\Admin\AppData\Roaming\cadeaut
PID 1400 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Roaming\cadeaut C:\Users\Admin\AppData\Roaming\cadeaut
PID 1400 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Roaming\cadeaut C:\Users\Admin\AppData\Roaming\cadeaut

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe

"C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe"

C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe

"C:\Users\Admin\AppData\Local\Temp\734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af.exe"

C:\Users\Admin\AppData\Roaming\cadeaut

C:\Users\Admin\AppData\Roaming\cadeaut

C:\Users\Admin\AppData\Roaming\cadeaut

C:\Users\Admin\AppData\Roaming\cadeaut

Network

Country Destination Domain Proto
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 host-file-host6.com udp
US 8.8.8.8:53 host-host-file8.com udp
NL 194.169.175.127:80 host-host-file8.com tcp
US 8.8.8.8:53 127.175.169.194.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 218.240.110.104.in-addr.arpa udp
GB 96.16.110.41:443 tcp
US 192.229.221.95:80 tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.178.89.13.in-addr.arpa udp

Files

memory/2244-1-0x0000000000930000-0x0000000000A30000-memory.dmp

memory/2244-2-0x0000000002460000-0x0000000002469000-memory.dmp

memory/3044-3-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3044-4-0x0000000000400000-0x0000000000409000-memory.dmp

memory/3044-6-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2608-5-0x00000000031D0000-0x00000000031E6000-memory.dmp

C:\Users\Admin\AppData\Roaming\cadeaut

MD5 486ecdc9522e173d5cdef07bf7c22622
SHA1 efe7a2cf5a4271a3f76fd2cab5139ff8d7e9e5f2
SHA256 734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af
SHA512 f2c493fce94e5865315f05b6de3105adf489064ca8081a8bf5487c47d753840e9c90bf5539f2b1b80813f730d70acd3faba7785183482d289e002688572dc0a3

C:\Users\Admin\AppData\Roaming\cadeaut

MD5 486ecdc9522e173d5cdef07bf7c22622
SHA1 efe7a2cf5a4271a3f76fd2cab5139ff8d7e9e5f2
SHA256 734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af
SHA512 f2c493fce94e5865315f05b6de3105adf489064ca8081a8bf5487c47d753840e9c90bf5539f2b1b80813f730d70acd3faba7785183482d289e002688572dc0a3

memory/1400-16-0x0000000000730000-0x0000000000830000-memory.dmp

C:\Users\Admin\AppData\Roaming\cadeaut

MD5 486ecdc9522e173d5cdef07bf7c22622
SHA1 efe7a2cf5a4271a3f76fd2cab5139ff8d7e9e5f2
SHA256 734c300338f40643967931a824822684721d02b80912b7066814a7802eff06af
SHA512 f2c493fce94e5865315f05b6de3105adf489064ca8081a8bf5487c47d753840e9c90bf5539f2b1b80813f730d70acd3faba7785183482d289e002688572dc0a3

memory/2592-19-0x0000000000400000-0x0000000000409000-memory.dmp

memory/2608-20-0x0000000003210000-0x0000000003226000-memory.dmp

memory/2592-21-0x0000000000400000-0x0000000000409000-memory.dmp