Malware Analysis Report

2025-06-16 06:16

Sample ID 230505-wvml1aec4y
Target 25fd5bffe980f3b72d65e21d15a86053.bin
SHA256 944324670af9eee1dc348d1376b4acfcaa8fb5de7e16beaf5aa2c58973d0a252
Tags
darkcloud stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

944324670af9eee1dc348d1376b4acfcaa8fb5de7e16beaf5aa2c58973d0a252

Threat Level: Known bad

The file 25fd5bffe980f3b72d65e21d15a86053.bin was found to be: Known bad.

Malicious Activity Summary

darkcloud stealer

DarkCloud

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-05-05 18:14

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-05 18:14

Reported

2023-05-05 18:22

Platform

win7-20230220-en

Max time kernel

92s

Max time network

35s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe"

Signatures

DarkCloud

stealer darkcloud

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 1988 wrote to memory of 332 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe

"C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe"

C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe

"C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe"

Network

N/A

Files

memory/1988-54-0x00000000010A0000-0x0000000001194000-memory.dmp

memory/1988-55-0x0000000000620000-0x0000000000660000-memory.dmp

memory/1988-56-0x0000000000470000-0x0000000000482000-memory.dmp

memory/1988-57-0x0000000000600000-0x000000000060C000-memory.dmp

memory/1988-58-0x00000000058A0000-0x0000000005952000-memory.dmp

memory/1988-59-0x0000000005220000-0x00000000052A0000-memory.dmp

memory/332-60-0x0000000000400000-0x0000000000478000-memory.dmp

memory/332-61-0x0000000000400000-0x0000000000478000-memory.dmp

memory/332-62-0x0000000000400000-0x0000000000478000-memory.dmp

memory/332-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/332-65-0x0000000000400000-0x0000000000478000-memory.dmp

memory/332-67-0x0000000000400000-0x0000000000478000-memory.dmp

memory/332-70-0x0000000000400000-0x0000000000478000-memory.dmp

memory/332-71-0x0000000000400000-0x0000000000478000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-05 18:14

Reported

2023-05-05 18:22

Platform

win10v2004-20230220-en

Max time kernel

96s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe"

Signatures

DarkCloud

stealer darkcloud

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4548 wrote to memory of 1096 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 4548 wrote to memory of 1096 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 4548 wrote to memory of 1096 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 4548 wrote to memory of 1096 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 4548 wrote to memory of 1096 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 4548 wrote to memory of 1096 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 4548 wrote to memory of 1096 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe
PID 4548 wrote to memory of 1096 N/A C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe

"C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe"

C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe

"C:\Users\Admin\AppData\Local\Temp\b8a62f112c6160c5830015208c34e95772aa2f2620dd27166033b57d130e89da.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 13.89.179.8:443 tcp
US 52.242.101.226:443 tcp
NL 8.238.20.126:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
US 52.242.101.226:443 tcp
US 8.8.8.8:53 2.77.109.52.in-addr.arpa udp
NL 8.238.20.126:80 tcp
US 52.242.101.226:443 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp

Files

memory/4548-133-0x0000000000010000-0x0000000000104000-memory.dmp

memory/4548-134-0x0000000005080000-0x0000000005624000-memory.dmp

memory/4548-135-0x0000000004B70000-0x0000000004C02000-memory.dmp

memory/4548-136-0x0000000004AE0000-0x0000000004AEA000-memory.dmp

memory/4548-137-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

memory/4548-138-0x0000000004DE0000-0x0000000004DF0000-memory.dmp

memory/4548-139-0x0000000006930000-0x00000000069CC000-memory.dmp

memory/1096-140-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1096-143-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1096-146-0x0000000000400000-0x0000000000478000-memory.dmp

memory/1096-147-0x0000000000400000-0x0000000000478000-memory.dmp