Malware Analysis Report

2024-11-30 02:19

Sample ID 241101-yyjqmavfqm
Target 421700a2d6d8516013d87e04628d2802.exe
SHA256 cc00a259ec4ebde015fe0fad59f369ae23def081caa787ad0652f7d6b2fe6de0
Tags
rhadamanthys discovery persistence 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

cc00a259ec4ebde015fe0fad59f369ae23def081caa787ad0652f7d6b2fe6de0

Threat Level: Known bad

The file 421700a2d6d8516013d87e04628d2802.exe was found to be: Known bad.

Malicious Activity Summary

rhadamanthys discovery persistence stealer

Rhadamanthys

Rhadamanthys family

Suspicious use of NtCreateUserProcessOtherParentProcess

Adds Run key to start application

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-01 20:14

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-01 20:11

Reported

2024-11-01 20:19

Platform

win7-20240903-en

Max time kernel

145s

Max time network

127s

Command Line

C:\Windows\Explorer.EXE

Signatures

Rhadamanthys

stealer rhadamanthys

Rhadamanthys family

rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 1376 created 1200 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe C:\Windows\Explorer.EXE

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\GifCamVideoEditor = "C:\\Users\\Admin\\Music\\GifCamUpdater\\GifCamOculus.exe" C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2700 set thread context of 1376 N/A C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.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\csc.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\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2700 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
PID 2700 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
PID 2700 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
PID 2700 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
PID 2700 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
PID 2700 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
PID 1376 wrote to memory of 2896 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe C:\Windows\SysWOW64\dialer.exe
PID 1376 wrote to memory of 2896 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe C:\Windows\SysWOW64\dialer.exe
PID 1376 wrote to memory of 2896 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe C:\Windows\SysWOW64\dialer.exe
PID 1376 wrote to memory of 2896 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe C:\Windows\SysWOW64\dialer.exe
PID 1376 wrote to memory of 2896 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe C:\Windows\SysWOW64\dialer.exe
PID 1376 wrote to memory of 2896 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe C:\Windows\SysWOW64\dialer.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe

"C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"

C:\Windows\SysWOW64\dialer.exe

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

Network

N/A

Files

memory/2700-0-0x0000000000400000-0x0000000000887000-memory.dmp

memory/2700-2-0x0000000000804000-0x0000000000810000-memory.dmp

memory/2700-1-0x0000000000400000-0x0000000000887000-memory.dmp

memory/2700-6-0x0000000000400000-0x0000000000887000-memory.dmp

memory/2700-4-0x0000000000400000-0x0000000000887000-memory.dmp

memory/2700-5-0x0000000000400000-0x0000000000887000-memory.dmp

memory/2700-7-0x0000000000400000-0x0000000000887000-memory.dmp

memory/1376-10-0x0000000000080000-0x0000000000130000-memory.dmp

memory/1376-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2700-17-0x0000000000400000-0x0000000000887000-memory.dmp

memory/2700-11-0x0000000000400000-0x0000000000887000-memory.dmp

memory/1376-15-0x0000000000080000-0x0000000000130000-memory.dmp

memory/1376-8-0x0000000000080000-0x0000000000130000-memory.dmp

memory/1376-13-0x0000000000080000-0x0000000000130000-memory.dmp

memory/1376-18-0x000000007463E000-0x000000007463F000-memory.dmp

memory/1376-19-0x0000000074630000-0x0000000074D1E000-memory.dmp

memory/1376-21-0x0000000000590000-0x00000000005A0000-memory.dmp

memory/1376-20-0x0000000000330000-0x0000000000338000-memory.dmp

memory/1376-24-0x0000000074630000-0x0000000074D1E000-memory.dmp

memory/2896-28-0x0000000000080000-0x0000000000089000-memory.dmp

memory/1376-25-0x0000000077750000-0x00000000778F9000-memory.dmp

memory/1376-35-0x0000000074630000-0x0000000074D1E000-memory.dmp

memory/2896-34-0x0000000077750000-0x00000000778F9000-memory.dmp

memory/2896-39-0x00000000007A0000-0x0000000000BA0000-memory.dmp

memory/2896-38-0x00000000007A0000-0x0000000000BA0000-memory.dmp

memory/2896-37-0x00000000766E0000-0x0000000076727000-memory.dmp

memory/1376-32-0x00000000055A0000-0x00000000059A0000-memory.dmp

memory/2896-31-0x00000000007A0000-0x0000000000BA0000-memory.dmp

memory/2896-30-0x00000000007A0000-0x0000000000BA0000-memory.dmp

memory/2896-33-0x0000000000080000-0x0000000000089000-memory.dmp

memory/1376-27-0x00000000766E0000-0x0000000076727000-memory.dmp

memory/1376-23-0x00000000055A0000-0x00000000059A0000-memory.dmp

memory/1376-22-0x00000000055A0000-0x00000000059A0000-memory.dmp

memory/2700-41-0x0000000000804000-0x0000000000810000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-01 20:11

Reported

2024-11-01 20:19

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

112s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Rhadamanthys family

rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 4504 created 2884 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe C:\Windows\system32\sihost.exe

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GifCamVideoEditor = "C:\\Users\\Admin\\Music\\GifCamUpdater\\GifCamOculus.exe" C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 448 set thread context of 4504 N/A C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.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\421700a2d6d8516013d87e04628d2802.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.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\421700a2d6d8516013d87e04628d2802.exe

"C:\Users\Admin\AppData\Local\Temp\421700a2d6d8516013d87e04628d2802.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"

C:\Windows\SysWOW64\openwith.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
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/448-0-0x0000000000400000-0x0000000000887000-memory.dmp

memory/448-2-0x0000000000804000-0x0000000000810000-memory.dmp

memory/448-6-0x0000000000400000-0x0000000000887000-memory.dmp

memory/4504-8-0x0000000000660000-0x0000000000710000-memory.dmp

memory/448-9-0x0000000000400000-0x0000000000887000-memory.dmp

memory/448-10-0x0000000000400000-0x0000000000887000-memory.dmp

memory/448-7-0x0000000000400000-0x0000000000887000-memory.dmp

memory/4504-11-0x0000000005010000-0x00000000050A2000-memory.dmp

memory/448-4-0x0000000000400000-0x0000000000887000-memory.dmp

memory/4504-12-0x0000000073D3E000-0x0000000073D3F000-memory.dmp

memory/448-5-0x0000000000400000-0x0000000000887000-memory.dmp

memory/448-1-0x0000000000400000-0x0000000000887000-memory.dmp

memory/4504-13-0x0000000073D30000-0x00000000744E0000-memory.dmp

memory/4504-16-0x00000000052B0000-0x00000000056B0000-memory.dmp

memory/4504-17-0x00000000052B0000-0x00000000056B0000-memory.dmp

memory/4504-18-0x0000000073D30000-0x00000000744E0000-memory.dmp

memory/4504-15-0x0000000004FF0000-0x0000000005000000-memory.dmp

memory/4504-21-0x0000000076AE0000-0x0000000076CF5000-memory.dmp

memory/4504-25-0x0000000073D30000-0x00000000744E0000-memory.dmp

memory/4504-27-0x0000000073D30000-0x00000000744E0000-memory.dmp

memory/1296-32-0x0000000002C80000-0x0000000003080000-memory.dmp

memory/1296-31-0x0000000002C80000-0x0000000003080000-memory.dmp

memory/1296-30-0x0000000076AE0000-0x0000000076CF5000-memory.dmp

memory/1296-28-0x00007FFF0C430000-0x00007FFF0C625000-memory.dmp

memory/1296-26-0x0000000002C80000-0x0000000003080000-memory.dmp

memory/1296-33-0x0000000002C80000-0x0000000003080000-memory.dmp

memory/1296-22-0x00000000010F0000-0x00000000010F9000-memory.dmp

memory/4504-19-0x00007FFF0C430000-0x00007FFF0C625000-memory.dmp

memory/4504-14-0x0000000002800000-0x0000000002808000-memory.dmp

memory/448-35-0x0000000000804000-0x0000000000810000-memory.dmp