Malware Analysis Report

2025-04-13 20:58

Sample ID 250307-reqaqssjs4
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

Darkcloud family

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-07 14:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-07 14:06

Reported

2025-03-07 14:09

Platform

win7-20240903-en

Max time kernel

118s

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 2084 set thread context of 2208 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 2084 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2084 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2084 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2084 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2084 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2084 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2084 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2084 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 2084 wrote to memory of 2208 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/2084-0-0x00000000743CE000-0x00000000743CF000-memory.dmp

memory/2084-1-0x0000000000A70000-0x0000000000B68000-memory.dmp

memory/2084-2-0x00000000743C0000-0x0000000074AAE000-memory.dmp

memory/2084-3-0x0000000000250000-0x000000000026E000-memory.dmp

memory/2084-4-0x00000000743CE000-0x00000000743CF000-memory.dmp

memory/2084-5-0x00000000743C0000-0x0000000074AAE000-memory.dmp

memory/2084-6-0x0000000005FA0000-0x0000000006062000-memory.dmp

memory/2208-12-0x0000000000400000-0x0000000000477000-memory.dmp

memory/2208-11-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2208-9-0x0000000000400000-0x0000000000477000-memory.dmp

memory/2208-8-0x0000000000400000-0x0000000000477000-memory.dmp

memory/2208-7-0x0000000000400000-0x0000000000477000-memory.dmp

memory/2208-14-0x0000000000400000-0x0000000000477000-memory.dmp

memory/2084-15-0x00000000743C0000-0x0000000074AAE000-memory.dmp

memory/2208-18-0x0000000000400000-0x0000000000477000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-07 14:06

Reported

2025-03-07 14:09

Platform

win10v2004-20250217-en

Max time kernel

78s

Max time network

141s

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 1704 set thread context of 3948 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:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.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 1704 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 1704 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 1704 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 1704 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1704 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1704 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1704 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1704 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1704 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1704 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\9a29e3c73087476b7ca24c4d244c6dbebcf0918171793eb8100a5fb7f8713276.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 1704 wrote to memory of 3948 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 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/1704-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

memory/1704-1-0x0000000000840000-0x0000000000938000-memory.dmp

memory/1704-2-0x00000000059C0000-0x0000000005F64000-memory.dmp

memory/1704-3-0x0000000005300000-0x0000000005392000-memory.dmp

memory/1704-4-0x00000000053C0000-0x00000000053CA000-memory.dmp

memory/1704-5-0x0000000074F10000-0x00000000756C0000-memory.dmp

memory/1704-6-0x0000000005970000-0x000000000598E000-memory.dmp

memory/1704-7-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

memory/1704-8-0x0000000074F10000-0x00000000756C0000-memory.dmp

memory/1704-9-0x0000000006F90000-0x0000000007052000-memory.dmp

memory/1704-10-0x000000000C940000-0x000000000C9DC000-memory.dmp

memory/3948-11-0x0000000000400000-0x0000000000477000-memory.dmp

memory/3948-13-0x0000000000400000-0x0000000000477000-memory.dmp

memory/1704-17-0x0000000074F10000-0x00000000756C0000-memory.dmp

memory/3948-26-0x0000000000400000-0x0000000000477000-memory.dmp