Malware Analysis Report

2025-04-13 20:58

Sample ID 250308-nynz8swpx3
Target 9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe
SHA256 9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276
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

9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276

Threat Level: Known bad

The file 9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe was found to be: Known bad.

Malicious Activity Summary

darkcloud discovery stealer

Darkcloud family

DarkCloud

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-08 11:48

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-08 11:48

Reported

2025-03-08 11:51

Platform

win7-20240903-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe"

Signatures

DarkCloud

stealer darkcloud

Darkcloud family

darkcloud

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2788 set thread context of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2788 wrote to memory of 3004 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe

"C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

Network

N/A

Files

memory/2788-0-0x000000007491E000-0x000000007491F000-memory.dmp

memory/2788-1-0x0000000000220000-0x0000000000318000-memory.dmp

memory/2788-2-0x0000000074910000-0x0000000074FFE000-memory.dmp

memory/2788-3-0x0000000000470000-0x000000000048E000-memory.dmp

memory/2788-4-0x000000007491E000-0x000000007491F000-memory.dmp

memory/2788-5-0x0000000074910000-0x0000000074FFE000-memory.dmp

memory/2788-6-0x000000000A300000-0x000000000A3C2000-memory.dmp

memory/3004-7-0x0000000000400000-0x0000000000477000-memory.dmp

memory/3004-15-0x0000000000400000-0x0000000000477000-memory.dmp

memory/3004-14-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/3004-10-0x0000000000400000-0x0000000000477000-memory.dmp

memory/3004-9-0x0000000000400000-0x0000000000477000-memory.dmp

memory/3004-17-0x0000000000400000-0x0000000000477000-memory.dmp

memory/2788-20-0x0000000074910000-0x0000000074FFE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-08 11:48

Reported

2025-03-08 11:51

Platform

win10v2004-20250217-en

Max time kernel

94s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe"

Signatures

DarkCloud

stealer darkcloud

Darkcloud family

darkcloud

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4036 set thread context of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4036 wrote to memory of 1672 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 1672 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 1672 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4036 wrote to memory of 5100 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe

"C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.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/4036-0-0x000000007508E000-0x000000007508F000-memory.dmp

memory/4036-1-0x0000000000020000-0x0000000000118000-memory.dmp

memory/4036-2-0x0000000005150000-0x00000000056F4000-memory.dmp

memory/4036-3-0x0000000004AE0000-0x0000000004B72000-memory.dmp

memory/4036-4-0x0000000075080000-0x0000000075830000-memory.dmp

memory/4036-5-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

memory/4036-6-0x0000000004D60000-0x0000000004D7E000-memory.dmp

memory/4036-7-0x000000007508E000-0x000000007508F000-memory.dmp

memory/4036-8-0x0000000075080000-0x0000000075830000-memory.dmp

memory/4036-9-0x00000000062D0000-0x0000000006392000-memory.dmp

memory/4036-10-0x000000000C1B0000-0x000000000C24C000-memory.dmp

memory/5100-11-0x0000000000400000-0x0000000000477000-memory.dmp

memory/5100-14-0x0000000000400000-0x0000000000477000-memory.dmp

memory/4036-17-0x0000000075080000-0x0000000075830000-memory.dmp

memory/5100-26-0x0000000000400000-0x0000000000477000-memory.dmp