Malware Analysis Report

2025-04-13 21:01

Sample ID 250310-ntjvqatshx
Target cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe
SHA256 cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327
Tags
darkcloud discovery stealer
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

cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327

Threat Level: Known bad

The file cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe was found to be: Known bad.

Malicious Activity Summary

darkcloud discovery stealer

DarkCloud

Darkcloud family

Suspicious use of SetThreadContext

AutoIT Executable

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious behavior: MapViewOfSection

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-10 11:41

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-10 11:41

Reported

2025-03-10 11:43

Platform

win7-20240729-en

Max time kernel

141s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe"

Signatures

DarkCloud

stealer darkcloud

Darkcloud family

darkcloud

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1072 set thread context of 2744 N/A C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe C:\Windows\SysWOW64\svchost.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\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\svchost.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe

"C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe"

Network

N/A

Files

memory/1072-10-0x0000000000260000-0x0000000000264000-memory.dmp

memory/2744-11-0x0000000000400000-0x0000000000458000-memory.dmp

memory/2744-13-0x0000000000400000-0x0000000000458000-memory.dmp

memory/2744-16-0x0000000000400000-0x0000000000458000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-10 11:41

Reported

2025-03-10 11:43

Platform

win10v2004-20250217-en

Max time kernel

95s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe"

Signatures

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\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe

"C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\cb2d711304377c0cf637d497ffea41f9ed0b31a907be15df53f369b7a6974327.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4948 -ip 4948

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4948 -s 656

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/4948-10-0x0000000004480000-0x0000000004484000-memory.dmp