Malware Analysis Report

2024-11-30 02:09

Sample ID 240329-fcw5qaaa6s
Target mysetup.exe
SHA256 f6e476e8ccb571b9d7a76234953ad428e883ff4712b0062498ba3275d9749b84
Tags
rhadamanthys stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

f6e476e8ccb571b9d7a76234953ad428e883ff4712b0062498ba3275d9749b84

Threat Level: Known bad

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

Malicious Activity Summary

rhadamanthys stealer

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Suspicious use of SetThreadContext

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-03-29 04:44

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-29 04:44

Reported

2024-03-29 04:51

Platform

win7-20240220-en

Max time kernel

117s

Max time network

120s

Command Line

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

Signatures

Program crash

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\SysWOW64\WerFault.exe
PID 2252 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\SysWOW64\WerFault.exe
PID 2252 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\SysWOW64\WerFault.exe
PID 2252 wrote to memory of 2640 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\SysWOW64\WerFault.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2252 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

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

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

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 508

Network

N/A

Files

memory/2252-0-0x00000000011B0000-0x000000000121E000-memory.dmp

memory/2252-1-0x0000000074900000-0x0000000074FEE000-memory.dmp

memory/2252-2-0x0000000000980000-0x00000000009C0000-memory.dmp

memory/2540-5-0x0000000000400000-0x000000000046D000-memory.dmp

memory/2540-8-0x0000000000400000-0x000000000046D000-memory.dmp

memory/2252-7-0x0000000002620000-0x0000000004620000-memory.dmp

memory/2540-10-0x0000000000400000-0x000000000046D000-memory.dmp

memory/2540-11-0x0000000000400000-0x000000000046D000-memory.dmp

memory/2540-12-0x0000000000400000-0x000000000046D000-memory.dmp

memory/2540-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2540-6-0x0000000000400000-0x000000000046D000-memory.dmp

memory/2252-14-0x0000000074900000-0x0000000074FEE000-memory.dmp

memory/2252-15-0x0000000000980000-0x00000000009C0000-memory.dmp

memory/2252-16-0x0000000002620000-0x0000000004620000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-29 04:44

Reported

2024-03-29 04:50

Platform

win10v2004-20240226-en

Max time kernel

300s

Max time network

302s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 2340 created 2836 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\system32\sihost.exe

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1328 set thread context of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1328 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\mysetup.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2340 wrote to memory of 3096 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 2340 wrote to memory of 3096 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 2340 wrote to memory of 3096 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 2340 wrote to memory of 3096 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe
PID 2340 wrote to memory of 3096 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\dialer.exe

Processes

C:\Windows\system32\sihost.exe

sihost.exe

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

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

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1328 -ip 1328

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1328 -s 868

C:\Windows\SysWOW64\dialer.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2340 -ip 2340

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 600

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2340 -ip 2340

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 596

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 40.134.221.88.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.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 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/1328-0-0x0000000000E90000-0x0000000000EFE000-memory.dmp

memory/1328-1-0x0000000075380000-0x0000000075B30000-memory.dmp

memory/1328-2-0x0000000005930000-0x0000000005940000-memory.dmp

memory/2340-5-0x0000000000400000-0x000000000046D000-memory.dmp

memory/2340-8-0x0000000000400000-0x000000000046D000-memory.dmp

memory/1328-9-0x0000000003330000-0x0000000005330000-memory.dmp

memory/2340-10-0x0000000000400000-0x000000000046D000-memory.dmp

memory/1328-11-0x0000000075380000-0x0000000075B30000-memory.dmp

memory/2340-12-0x00000000039B0000-0x0000000003DB0000-memory.dmp

memory/2340-14-0x00000000039B0000-0x0000000003DB0000-memory.dmp

memory/2340-13-0x00000000039B0000-0x0000000003DB0000-memory.dmp

memory/2340-15-0x00007FFAC4D10000-0x00007FFAC4F05000-memory.dmp

memory/2340-16-0x00000000039B0000-0x0000000003DB0000-memory.dmp

memory/3096-19-0x0000000000660000-0x0000000000669000-memory.dmp

memory/2340-18-0x0000000076170000-0x0000000076385000-memory.dmp

memory/3096-22-0x0000000002330000-0x0000000002730000-memory.dmp

memory/3096-24-0x0000000002330000-0x0000000002730000-memory.dmp

memory/3096-23-0x00007FFAC4D10000-0x00007FFAC4F05000-memory.dmp

memory/3096-26-0x0000000076170000-0x0000000076385000-memory.dmp

memory/2340-27-0x00000000039B0000-0x0000000003DB0000-memory.dmp

memory/3096-28-0x0000000002330000-0x0000000002730000-memory.dmp