Malware Analysis Report

2024-11-13 13:53

Sample ID 240914-vkvzysvdln
Target 81babd3b171b54c1591b184dc234104e5ca1ede6ba598820649c12f6c8a0e9b3
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: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

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 Overview

score
10/10

SHA256

81babd3b171b54c1591b184dc234104e5ca1ede6ba598820649c12f6c8a0e9b3

Threat Level: Known bad

The file 81babd3b171b54c1591b184dc234104e5ca1ede6ba598820649c12f6c8a0e9b3 was found to be: Known bad.

Malicious Activity Summary

rhadamanthys discovery stealer

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Executes dropped EXE

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-14 17:03

Signatures

Unsigned PE

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

Analysis: behavioral4

Detonation Overview

Submitted

2024-09-14 17:03

Reported

2024-09-14 17:06

Platform

win10v2004-20240802-en

Max time kernel

126s

Max time network

128s

Command Line

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 2324 created 2636 N/A C:\Users\Admin\AppData\Local\Temp\module.exe C:\Windows\system32\svchost.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\svchost.exe

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

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:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4396,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8

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 objects.githubusercontent.com udp
US 185.199.108.133:443 objects.githubusercontent.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 45.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 215.156.26.20.in-addr.arpa udp
US 8.8.8.8:53 133.108.199.185.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.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 97.17.167.52.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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp

Files

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

MD5 850903be8fe94bf6b270c2188af82cca
SHA1 e0469de46b7ced7b4de11157d0eff8719ba3dc70
SHA256 5e69b0dd5a6cea4b9d9790a0d63e9e25417c6d602f004f5540c951585b15cbec
SHA512 5d430c21dab1427400f5750f788076e76fe1d45fd5b79f792ad2cbcf916787312f37d596bc70e4d1d16f01a39275798513beaf8741bc864e113cb4a39d44ee1e

memory/2324-4-0x00000000003F0000-0x0000000000913000-memory.dmp

memory/2324-6-0x000000000046B000-0x00000000006CC000-memory.dmp

memory/2324-7-0x00000000009F0000-0x00000000009F1000-memory.dmp

memory/2324-8-0x00000000003F0000-0x0000000000913000-memory.dmp

memory/2324-9-0x00000000003F0000-0x0000000000913000-memory.dmp

memory/2324-10-0x0000000003B40000-0x0000000003F40000-memory.dmp

memory/2324-11-0x00000000003F0000-0x0000000000913000-memory.dmp

memory/2324-12-0x0000000003B40000-0x0000000003F40000-memory.dmp

memory/2324-13-0x00007FF983830000-0x00007FF983A25000-memory.dmp

memory/2324-15-0x0000000074F90000-0x00000000751A5000-memory.dmp

memory/1868-16-0x00000000003C0000-0x00000000003C9000-memory.dmp

memory/2324-17-0x00000000003F0000-0x0000000000913000-memory.dmp

memory/2324-18-0x000000000046B000-0x00000000006CC000-memory.dmp

memory/1868-21-0x0000000002220000-0x0000000002620000-memory.dmp

memory/1868-20-0x0000000002220000-0x0000000002620000-memory.dmp

memory/1868-22-0x00007FF983830000-0x00007FF983A25000-memory.dmp

memory/1868-25-0x0000000074F90000-0x00000000751A5000-memory.dmp

memory/1868-23-0x0000000002220000-0x0000000002620000-memory.dmp

memory/1868-26-0x0000000002220000-0x0000000002620000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-14 17:03

Reported

2024-09-14 17:06

Platform

win7-20240903-en

Max time kernel

121s

Max time network

123s

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 17:03

Reported

2024-09-14 17:06

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

124s

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 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 42.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-09-14 17:03

Reported

2024-09-14 17:06

Platform

win7-20240903-en

Max time kernel

119s

Max time network

120s

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