Malware Analysis Report

2024-10-10 13:33

Sample ID 240529-eqg3aahh8x
Target eb18696d0081fd9e7a30b94f6e7d4bd7e3f02f9476d25a23f5cbc00659b25f5f
SHA256 eb18696d0081fd9e7a30b94f6e7d4bd7e3f02f9476d25a23f5cbc00659b25f5f
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

eb18696d0081fd9e7a30b94f6e7d4bd7e3f02f9476d25a23f5cbc00659b25f5f

Threat Level: Known bad

The file eb18696d0081fd9e7a30b94f6e7d4bd7e3f02f9476d25a23f5cbc00659b25f5f was found to be: Known bad.

Malicious Activity Summary

rhadamanthys stealer

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Suspicious use of NtCreateThreadExHideFromDebugger

Program crash

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-29 04:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-29 04:08

Reported

2024-05-29 04:11

Platform

win7-20240215-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 2448 created 1124 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\Explorer.EXE

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A
N/A N/A C:\Windows\SysWOW64\regsvr32.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2108 wrote to memory of 2304 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2108 wrote to memory of 2304 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2108 wrote to memory of 2304 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2108 wrote to memory of 2304 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2108 wrote to memory of 2304 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2108 wrote to memory of 2304 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2108 wrote to memory of 2304 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2304 wrote to memory of 2448 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2448 wrote to memory of 2568 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 2448 wrote to memory of 2568 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 2448 wrote to memory of 2568 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 2448 wrote to memory of 2568 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 2448 wrote to memory of 2568 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 2448 wrote to memory of 2568 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\eb18696d0081fd9e7a30b94f6e7d4bd7e3f02f9476d25a23f5cbc00659b25f5f.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\eb18696d0081fd9e7a30b94f6e7d4bd7e3f02f9476d25a23f5cbc00659b25f5f.dll

C:\Windows\SysWOW64\regsvr32.exe

"C:\Windows\SysWOW64\regsvr32.exe"

C:\Windows\SysWOW64\dialer.exe

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

Network

N/A

Files

memory/2304-0-0x0000000010000000-0x00000000102FE000-memory.dmp

memory/2304-18-0x0000000010000000-0x00000000102FE000-memory.dmp

memory/2448-19-0x0000000000130000-0x000000000019D000-memory.dmp

memory/2304-17-0x00000000102CF000-0x00000000102F8000-memory.dmp

memory/2304-16-0x00000000102CB000-0x00000000102F8000-memory.dmp

memory/2304-15-0x00000000102C6000-0x00000000102CA000-memory.dmp

memory/2304-14-0x00000000102C3000-0x00000000102C7000-memory.dmp

memory/2304-13-0x00000000102C0000-0x00000000102C7000-memory.dmp

memory/2304-12-0x00000000102B8000-0x00000000102C0000-memory.dmp

memory/2448-11-0x0000000000130000-0x000000000019D000-memory.dmp

memory/2448-10-0x0000000000130000-0x000000000019D000-memory.dmp

memory/2304-9-0x0000000010004000-0x000000001001E000-memory.dmp

memory/2448-7-0x00000000000D0000-0x00000000000D1000-memory.dmp

memory/2448-5-0x00000000000D0000-0x00000000000D1000-memory.dmp

memory/2448-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2448-1-0x0000000000130000-0x000000000019D000-memory.dmp

memory/2448-20-0x0000000003530000-0x0000000003930000-memory.dmp

memory/2448-21-0x0000000003530000-0x0000000003930000-memory.dmp

memory/2448-23-0x0000000076990000-0x00000000769D7000-memory.dmp

memory/2568-24-0x0000000000080000-0x0000000000089000-memory.dmp

memory/2568-26-0x0000000001EA0000-0x00000000022A0000-memory.dmp

memory/2568-29-0x0000000076990000-0x00000000769D7000-memory.dmp

memory/2568-27-0x0000000077400000-0x00000000775A9000-memory.dmp

memory/2304-30-0x0000000010000000-0x00000000102FE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-29 04:08

Reported

2024-05-29 04:11

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

152s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 4528 created 2520 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\system32\sihost.exe

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A
N/A N/A C:\Windows\SysWOW64\regsvr32.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2992 wrote to memory of 2392 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2992 wrote to memory of 2392 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2992 wrote to memory of 2392 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2392 wrote to memory of 4528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2392 wrote to memory of 4528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2392 wrote to memory of 4528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2392 wrote to memory of 4528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2392 wrote to memory of 4528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2392 wrote to memory of 4528 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4528 wrote to memory of 4668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 4528 wrote to memory of 4668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 4528 wrote to memory of 4668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 4528 wrote to memory of 4668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe
PID 4528 wrote to memory of 4668 N/A C:\Windows\SysWOW64\regsvr32.exe C:\Windows\SysWOW64\dialer.exe

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\eb18696d0081fd9e7a30b94f6e7d4bd7e3f02f9476d25a23f5cbc00659b25f5f.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\eb18696d0081fd9e7a30b94f6e7d4bd7e3f02f9476d25a23f5cbc00659b25f5f.dll

C:\Windows\SysWOW64\regsvr32.exe

"C:\Windows\SysWOW64\regsvr32.exe"

C:\Windows\SysWOW64\dialer.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4528 -ip 4528

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4528 -s 628

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4528 -ip 4528

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4528 -s 636

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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 208.143.182.52.in-addr.arpa udp

Files

memory/2392-0-0x0000000010000000-0x00000000102FE000-memory.dmp

memory/2392-2-0x0000000010000000-0x00000000102FE000-memory.dmp

memory/2392-1-0x0000000010004000-0x000000001001E000-memory.dmp

memory/4528-6-0x0000000000CF0000-0x0000000000D5D000-memory.dmp

memory/4528-3-0x0000000000C80000-0x0000000000C81000-memory.dmp

memory/2392-5-0x0000000010000000-0x00000000102FE000-memory.dmp

memory/4528-12-0x0000000000CF0000-0x0000000000D5D000-memory.dmp

memory/2392-11-0x00000000102CB000-0x00000000102F8000-memory.dmp

memory/2392-10-0x00000000102C6000-0x00000000102CA000-memory.dmp

memory/2392-9-0x0000000010000000-0x00000000102FE000-memory.dmp

memory/2392-8-0x00000000102C0000-0x00000000102C7000-memory.dmp

memory/4528-7-0x0000000000CF0000-0x0000000000D5D000-memory.dmp

memory/4528-13-0x0000000003D80000-0x0000000004180000-memory.dmp

memory/4528-14-0x0000000003D80000-0x0000000004180000-memory.dmp

memory/4528-15-0x0000000003D80000-0x0000000004180000-memory.dmp

memory/4528-17-0x0000000003D80000-0x0000000004180000-memory.dmp

memory/4528-16-0x00007FFD607D0000-0x00007FFD609C5000-memory.dmp

memory/4528-19-0x0000000076C90000-0x0000000076EA5000-memory.dmp

memory/4668-20-0x0000000000690000-0x0000000000699000-memory.dmp

memory/4668-27-0x00000000024D0000-0x00000000028D0000-memory.dmp

memory/4668-24-0x00000000024D0000-0x00000000028D0000-memory.dmp

memory/4668-26-0x0000000076C90000-0x0000000076EA5000-memory.dmp

memory/4668-23-0x00007FFD607D0000-0x00007FFD609C5000-memory.dmp

memory/4668-22-0x00000000024D0000-0x00000000028D0000-memory.dmp

memory/4668-28-0x00000000024D0000-0x00000000028D0000-memory.dmp

memory/4528-29-0x0000000003D80000-0x0000000004180000-memory.dmp