Malware Analysis Report

2024-10-10 13:33

Sample ID 240527-t4shhabd95
Target Loader.exe
SHA256 241c2f04b954e016a35dad08f22d53f5365c551f5f25a801cf91f6c99de8f9b9
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

241c2f04b954e016a35dad08f22d53f5365c551f5f25a801cf91f6c99de8f9b9

Threat Level: Known bad

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

Malicious Activity Summary

rhadamanthys stealer

Detect rhadamanthys stealer shellcode

Suspicious use of NtCreateUserProcessOtherParentProcess

Rhadamanthys

Drops startup file

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-27 16:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-27 16:37

Reported

2024-05-27 16:39

Platform

win7-20240221-en

Max time kernel

147s

Max time network

149s

Command Line

C:\Windows\Explorer.EXE

Signatures

Detect rhadamanthys stealer shellcode

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

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 2344 created 1204 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe C:\Windows\Explorer.EXE

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Software.exe C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Software.exe C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2864 set thread context of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2864 wrote to memory of 2344 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
PID 2344 wrote to memory of 2984 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe C:\Windows\system32\certreq.exe
PID 2344 wrote to memory of 2984 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe C:\Windows\system32\certreq.exe
PID 2344 wrote to memory of 2984 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe C:\Windows\system32\certreq.exe
PID 2344 wrote to memory of 2984 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe C:\Windows\system32\certreq.exe
PID 2344 wrote to memory of 2984 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe C:\Windows\system32\certreq.exe
PID 2344 wrote to memory of 2984 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe C:\Windows\system32\certreq.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

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

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

C:\Windows\system32\certreq.exe

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

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

C:\Windows\explorer.exe

"C:\Windows\explorer.exe"

Network

Country Destination Domain Proto
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp
NL 45.81.39.169:8889 tcp

Files

memory/2864-1-0x0000000001380000-0x0000000001595000-memory.dmp

memory/2864-2-0x0000000001510000-0x0000000001511000-memory.dmp

memory/2344-3-0x0000000000400000-0x0000000000471000-memory.dmp

memory/2344-5-0x0000000000400000-0x0000000000471000-memory.dmp

memory/2344-13-0x0000000000400000-0x0000000000471000-memory.dmp

memory/2864-12-0x0000000001380000-0x0000000001595000-memory.dmp

memory/2344-10-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2344-14-0x0000000000400000-0x0000000000471000-memory.dmp

memory/2344-15-0x00000000001E0000-0x00000000001E7000-memory.dmp

memory/2344-16-0x0000000000C10000-0x0000000001010000-memory.dmp

memory/2344-17-0x0000000000C10000-0x0000000001010000-memory.dmp

memory/2344-18-0x0000000000C10000-0x0000000001010000-memory.dmp

memory/2344-19-0x0000000000C10000-0x0000000001010000-memory.dmp

memory/2984-20-0x0000000000060000-0x0000000000063000-memory.dmp

memory/2984-21-0x0000000000060000-0x0000000000063000-memory.dmp

memory/2344-23-0x0000000000820000-0x0000000000856000-memory.dmp

memory/2344-28-0x0000000000C10000-0x0000000001010000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-27 16:37

Reported

2024-05-27 16:40

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

206s

Command Line

C:\Windows\Explorer.EXE

Signatures

Detect rhadamanthys stealer shellcode

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

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 4416 created 3456 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe C:\Windows\Explorer.EXE

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Software.exe C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Software.exe C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2816 set thread context of 4416 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe

Program crash

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

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

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

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

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2816 -ip 2816

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2816 -s 332

C:\Windows\system32\certreq.exe

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

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 75.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 175.117.168.52.in-addr.arpa udp

Files

memory/2816-0-0x0000000000960000-0x0000000000B75000-memory.dmp

memory/4416-2-0x0000000001000000-0x0000000001071000-memory.dmp

memory/2816-6-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

memory/4416-9-0x0000000001000000-0x0000000001071000-memory.dmp

memory/2816-10-0x0000000000960000-0x0000000000B75000-memory.dmp

memory/4416-11-0x0000000001380000-0x0000000001387000-memory.dmp

memory/4416-12-0x00000000030E0000-0x00000000034E0000-memory.dmp

memory/4416-14-0x00000000030E0000-0x00000000034E0000-memory.dmp

memory/4416-13-0x00000000030E0000-0x00000000034E0000-memory.dmp

memory/4416-15-0x00000000030E0000-0x00000000034E0000-memory.dmp

memory/1928-16-0x000002BA62050000-0x000002BA62053000-memory.dmp

memory/4416-17-0x0000000003C20000-0x0000000003C56000-memory.dmp

memory/4416-23-0x00000000030E0000-0x00000000034E0000-memory.dmp