Malware Analysis Report

2024-11-30 02:20

Sample ID 241119-pt3hhawhnq
Target AstralRust.rar
SHA256 4c7b248106f9d66630e2975e09102174f36780f5a441eb51d6415afc0249692e
Tags
rhadamanthys discovery stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4c7b248106f9d66630e2975e09102174f36780f5a441eb51d6415afc0249692e

Threat Level: Known bad

The file AstralRust.rar was found to be: Known bad.

Malicious Activity Summary

rhadamanthys discovery stealer

Rhadamanthys family

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Executes dropped EXE

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-19 12:38

Signatures

Rhadamanthys family

rhadamanthys

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-19 12:38

Reported

2024-11-19 12:41

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

136s

Command Line

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\AstralRust.rar"

Signatures

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: 35 N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Processes

C:\Program Files\7-Zip\7zFM.exe

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\AstralRust.rar"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-19 12:38

Reported

2024-11-19 12:39

Platform

win7-20240903-en

Max time kernel

17s

Max time network

16s

Command Line

C:\Windows\Explorer.EXE

Signatures

Rhadamanthys

stealer rhadamanthys

Rhadamanthys family

rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 2844 created 1248 N/A C:\Users\Admin\Desktop\AstralRust.exe C:\Windows\Explorer.EXE
PID 2748 created 1248 N/A C:\Users\Admin\Desktop\AstralRust.exe C:\Windows\Explorer.EXE

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\Desktop\AstralRust.exe N/A
N/A N/A C:\Users\Admin\Desktop\AstralRust.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\Desktop\AstralRust.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\dialer.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\Desktop\AstralRust.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\dialer.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeRestorePrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: 35 N/A C:\Program Files\7-Zip\7zFM.exe N/A
Token: SeSecurityPrivilege N/A C:\Program Files\7-Zip\7zFM.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A
N/A N/A C:\Program Files\7-Zip\7zFM.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Program Files\7-Zip\7zFM.exe

"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\AstralRust.rar"

C:\Users\Admin\Desktop\AstralRust.exe

"C:\Users\Admin\Desktop\AstralRust.exe"

C:\Windows\SysWOW64\dialer.exe

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

C:\Users\Admin\Desktop\AstralRust.exe

"C:\Users\Admin\Desktop\AstralRust.exe"

C:\Windows\SysWOW64\dialer.exe

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

Network

N/A

Files

C:\Users\Admin\Desktop\AstralRust.exe

MD5 bb84cc2853596d21a318576c4995fcce
SHA1 477a224d5b4e398b34a978ac19def1cbafb211d3
SHA256 6135bdbcfd9f824b3da0bef2ba73018a998967e20c5d0274c6a1c0433649b017
SHA512 aa32be3d91bf6e2c8fed0d0e0407723466b477ab0d27c5d3cd705ac73365ab4c56de4f16d4786ee586e750d6835eba09775dbf5a93b0da0eaea4326f2fc2bd5c

memory/2844-3-0x0000000001240000-0x00000000012AD000-memory.dmp

memory/2844-4-0x00000000007F0000-0x0000000000BF0000-memory.dmp

memory/2844-5-0x00000000007F0000-0x0000000000BF0000-memory.dmp

memory/2844-6-0x0000000077530000-0x00000000776D9000-memory.dmp

memory/2844-8-0x0000000077090000-0x00000000770D7000-memory.dmp

memory/2740-9-0x00000000000D0000-0x00000000000D9000-memory.dmp

memory/2844-10-0x0000000001240000-0x00000000012AD000-memory.dmp

memory/2740-13-0x0000000077530000-0x00000000776D9000-memory.dmp

memory/2740-12-0x0000000001B80000-0x0000000001F80000-memory.dmp

memory/2740-15-0x0000000077090000-0x00000000770D7000-memory.dmp

memory/2748-18-0x0000000000830000-0x0000000000C30000-memory.dmp

memory/2748-21-0x0000000077090000-0x00000000770D7000-memory.dmp

memory/2624-24-0x0000000001C00000-0x0000000002000000-memory.dmp

memory/2748-20-0x0000000075420000-0x0000000075530000-memory.dmp

memory/2624-27-0x0000000077090000-0x00000000770D7000-memory.dmp

memory/2624-25-0x0000000077530000-0x00000000776D9000-memory.dmp

memory/2748-19-0x0000000077530000-0x00000000776D9000-memory.dmp