Malware Analysis Report

2025-04-13 21:01

Sample ID 250310-nk6m5aszfx
Target 8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
SHA256 8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045
Tags
darkcloud discovery stealer
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

8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045

Threat Level: Known bad

The file 8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe was found to be: Known bad.

Malicious Activity Summary

darkcloud discovery stealer

Darkcloud family

DarkCloud

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-10 11:28

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-10 11:28

Reported

2025-03-10 11:30

Platform

win10v2004-20250217-en

Max time kernel

141s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe"

Signatures

DarkCloud

stealer darkcloud

Darkcloud family

darkcloud

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\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1896 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 1896 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 1896 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 1896 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 1896 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 1896 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 1896 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 1896 wrote to memory of 4560 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe

"C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe"

C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe

"C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/1896-0-0x0000000074A9E000-0x0000000074A9F000-memory.dmp

memory/1896-1-0x0000000000DC0000-0x0000000000EA4000-memory.dmp

memory/1896-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

memory/1896-3-0x0000000005920000-0x00000000059B2000-memory.dmp

memory/1896-4-0x00000000059C0000-0x0000000005A5C000-memory.dmp

memory/1896-5-0x00000000058B0000-0x00000000058BA000-memory.dmp

memory/1896-6-0x0000000074A90000-0x0000000075240000-memory.dmp

memory/1896-7-0x00000000071E0000-0x00000000071F8000-memory.dmp

memory/1896-8-0x0000000074A9E000-0x0000000074A9F000-memory.dmp

memory/1896-9-0x0000000074A90000-0x0000000075240000-memory.dmp

memory/1896-10-0x0000000006C20000-0x0000000006CCC000-memory.dmp

memory/4560-11-0x0000000000400000-0x0000000000461000-memory.dmp

memory/4560-14-0x0000000000400000-0x0000000000461000-memory.dmp

memory/1896-15-0x0000000074A90000-0x0000000075240000-memory.dmp

memory/4560-18-0x0000000000400000-0x0000000000461000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-10 11:28

Reported

2025-03-10 11:30

Platform

win7-20241023-en

Max time kernel

140s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe"

Signatures

DarkCloud

stealer darkcloud

Darkcloud family

darkcloud

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\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe
PID 2064 wrote to memory of 1668 N/A C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe

"C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe"

C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe

"C:\Users\Admin\AppData\Local\Temp\8f3e95019dfd1caa9f174df58f9b8c097e66cb655551c18fe94067f371d9b045.exe"

Network

N/A

Files

memory/2064-0-0x000000007403E000-0x000000007403F000-memory.dmp

memory/2064-1-0x00000000012C0000-0x00000000013A4000-memory.dmp

memory/2064-2-0x0000000074030000-0x000000007471E000-memory.dmp

memory/2064-3-0x00000000007A0000-0x00000000007B8000-memory.dmp

memory/2064-4-0x000000007403E000-0x000000007403F000-memory.dmp

memory/2064-5-0x0000000074030000-0x000000007471E000-memory.dmp

memory/2064-6-0x0000000005620000-0x00000000056CC000-memory.dmp

memory/1668-15-0x0000000000400000-0x0000000000461000-memory.dmp

memory/1668-17-0x0000000000400000-0x0000000000461000-memory.dmp

memory/1668-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1668-11-0x0000000000400000-0x0000000000461000-memory.dmp

memory/1668-7-0x0000000000400000-0x0000000000461000-memory.dmp

memory/1668-9-0x0000000000400000-0x0000000000461000-memory.dmp

memory/2064-19-0x0000000074030000-0x000000007471E000-memory.dmp

memory/1668-21-0x0000000000400000-0x0000000000461000-memory.dmp