Malware Analysis Report

2024-11-13 13:54

Sample ID 240916-w7q5ystclk
Target file.exe
SHA256 95897f8814e4c651671799af51c40fbe0a2334827683c82640627e270c57d9d7
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 Overview

score
10/10

SHA256

95897f8814e4c651671799af51c40fbe0a2334827683c82640627e270c57d9d7

Threat Level: Known bad

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

Malicious Activity Summary

rhadamanthys discovery stealer

Rhadamanthys family

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Deletes itself

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-16 18:34

Signatures

Rhadamanthys family

rhadamanthys

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-16 18:34

Reported

2024-09-16 18:36

Platform

win7-20240903-en

Max time kernel

121s

Max time network

123s

Command Line

C:\Windows\Explorer.EXE

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 2356 created 1212 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\Explorer.EXE

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
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\file.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\file.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\file.exe N/A
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

C:\Windows\SysWOW64\dialer.exe

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

Network

N/A

Files

memory/2356-0-0x0000000001170000-0x00000000011DD000-memory.dmp

memory/2356-2-0x0000000000920000-0x0000000000D20000-memory.dmp

memory/2356-1-0x0000000000920000-0x0000000000D20000-memory.dmp

memory/2356-4-0x0000000077180000-0x0000000077329000-memory.dmp

memory/2356-6-0x0000000076CB0000-0x0000000076CF7000-memory.dmp

memory/2356-8-0x0000000000920000-0x0000000000D20000-memory.dmp

memory/2424-7-0x0000000000080000-0x0000000000089000-memory.dmp

memory/2356-9-0x0000000001170000-0x00000000011DD000-memory.dmp

memory/2356-3-0x0000000000920000-0x0000000000D20000-memory.dmp

memory/2356-10-0x0000000077181000-0x0000000077282000-memory.dmp

memory/2424-12-0x0000000077180000-0x0000000077329000-memory.dmp

memory/2424-13-0x0000000001B20000-0x0000000001F20000-memory.dmp

memory/2424-16-0x0000000076CB0000-0x0000000076CF7000-memory.dmp

memory/2424-17-0x0000000077180000-0x0000000077329000-memory.dmp

memory/2356-18-0x0000000077181000-0x0000000077282000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-16 18:34

Reported

2024-09-16 18:36

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

96s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 4004 created 2532 N/A C:\Users\Admin\AppData\Local\Temp\file.exe C:\Windows\system32\sihost.exe

Deletes itself

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\file.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\file.exe N/A
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A

Processes

C:\Windows\system32\sihost.exe

sihost.exe

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

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

C:\Windows\SysWOW64\dialer.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/4004-0-0x00000000005B0000-0x000000000061D000-memory.dmp

memory/4004-1-0x0000000003BD0000-0x0000000003FD0000-memory.dmp

memory/4004-2-0x0000000003BD0000-0x0000000003FD0000-memory.dmp

memory/4004-3-0x0000000003BD0000-0x0000000003FD0000-memory.dmp

memory/4004-4-0x00007FFA4DDF0000-0x00007FFA4DFE5000-memory.dmp

memory/4004-7-0x0000000076EE0000-0x00000000770F5000-memory.dmp

memory/4004-9-0x00000000005B0000-0x000000000061D000-memory.dmp

memory/4680-8-0x0000000000370000-0x0000000000379000-memory.dmp

memory/4680-12-0x0000000002230000-0x0000000002630000-memory.dmp

memory/4680-11-0x0000000002230000-0x0000000002630000-memory.dmp

memory/4004-5-0x0000000003BD0000-0x0000000003FD0000-memory.dmp

memory/4680-15-0x0000000076EE0000-0x00000000770F5000-memory.dmp

memory/4680-13-0x00007FFA4DDF0000-0x00007FFA4DFE5000-memory.dmp

memory/4680-16-0x0000000002230000-0x0000000002630000-memory.dmp

memory/4680-17-0x0000000002230000-0x0000000002630000-memory.dmp