Malware Analysis Report

2024-11-13 13:53

Sample ID 240914-vb3cnsthjq
Target RG_Catalyst3.zip
SHA256 81babd3b171b54c1591b184dc234104e5ca1ede6ba598820649c12f6c8a0e9b3
Tags
rhadamanthys 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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

81babd3b171b54c1591b184dc234104e5ca1ede6ba598820649c12f6c8a0e9b3

Threat Level: Known bad

The file RG_Catalyst3.zip was found to be: Known bad.

Malicious Activity Summary

rhadamanthys discovery stealer

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Executes dropped EXE

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-14 16:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-14 16:49

Reported

2024-09-14 16:52

Platform

win7-20240903-en

Max time kernel

122s

Max time network

127s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\Data\menu.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\Data\menu.dll,#1

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-14 16:49

Reported

2024-09-14 16:52

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

95s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\Data\menu.dll,#1

Signatures

N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\Data\menu.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-09-14 16:49

Reported

2024-09-14 16:52

Platform

win7-20240704-en

Max time kernel

118s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\SetLoader.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\SetLoader.exe

"C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\SetLoader.exe"

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-09-14 16:49

Reported

2024-09-14 16:52

Platform

win10v2004-20240802-en

Max time kernel

150s

Max time network

151s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 1316 created 2628 N/A C:\Users\Admin\AppData\Local\Temp\module.exe C:\Windows\system32\sihost.exe

Executes dropped EXE

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

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\module.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\openwith.exe N/A

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\SetLoader.exe

"C:\Users\Admin\AppData\Local\Temp\RG_Catalyst3\SetLoader.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /d /s /c "C:\Users\Admin\AppData\Local\Temp\module.exe"

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

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

C:\Windows\SysWOW64\openwith.exe

"C:\Windows\system32\openwith.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 github.com udp
GB 20.26.156.215:443 github.com tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 objects.githubusercontent.com udp
US 185.199.109.133:443 objects.githubusercontent.com tcp
US 8.8.8.8:53 215.156.26.20.in-addr.arpa udp
US 8.8.8.8:53 36.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 133.109.199.185.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

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

MD5 850903be8fe94bf6b270c2188af82cca
SHA1 e0469de46b7ced7b4de11157d0eff8719ba3dc70
SHA256 5e69b0dd5a6cea4b9d9790a0d63e9e25417c6d602f004f5540c951585b15cbec
SHA512 5d430c21dab1427400f5750f788076e76fe1d45fd5b79f792ad2cbcf916787312f37d596bc70e4d1d16f01a39275798513beaf8741bc864e113cb4a39d44ee1e

memory/1316-4-0x0000000000440000-0x0000000000963000-memory.dmp

memory/1316-6-0x00000000004BB000-0x000000000071C000-memory.dmp

memory/1316-7-0x0000000000F00000-0x0000000000F01000-memory.dmp

memory/1316-9-0x0000000000440000-0x0000000000963000-memory.dmp

memory/1316-10-0x0000000003DB0000-0x00000000041B0000-memory.dmp

memory/1316-11-0x0000000000440000-0x0000000000963000-memory.dmp

memory/1316-12-0x0000000003DB0000-0x00000000041B0000-memory.dmp

memory/1316-13-0x00007FFA68210000-0x00007FFA68405000-memory.dmp

memory/1316-15-0x0000000076D60000-0x0000000076F75000-memory.dmp

memory/4652-16-0x0000000000130000-0x0000000000139000-memory.dmp

memory/1316-17-0x0000000000440000-0x0000000000963000-memory.dmp

memory/4652-21-0x0000000002150000-0x0000000002550000-memory.dmp

memory/4652-20-0x0000000002150000-0x0000000002550000-memory.dmp

memory/4652-22-0x00007FFA68210000-0x00007FFA68405000-memory.dmp

memory/4652-25-0x0000000002150000-0x0000000002550000-memory.dmp

memory/4652-24-0x0000000076D60000-0x0000000076F75000-memory.dmp

memory/1316-19-0x00000000004BB000-0x000000000071C000-memory.dmp

memory/4652-26-0x0000000002150000-0x0000000002550000-memory.dmp