rhadamanthys | d5d5b80a12be4845f2c4d23cdf01b6a690ceddcb8bb923df7d59bf5cd2057a6f

General

Target

tmp.exe
Size

369KB
MD5

c901cbc0e7e675c98d6ccc17e453d99f
SHA1

76f1958a6fe532b472f60361bff3b0f8bda2c86f
SHA256

d5d5b80a12be4845f2c4d23cdf01b6a690ceddcb8bb923df7d59bf5cd2057a6f
SHA512

3da5b084aafa0f700ada7a4675499032e9fa60557f8de3c01fc7983eda405d3d906bc581ffc4993e47b37663ca7932240d25b3e1fb45b8ed9471e9bce54566c2
SSDEEP

6144:WMRGQL7XoNR9ZsekVOt/hihbxQLy+qKKwTAVYxQkINPNNrlwKwpxBm94QjV6ptCa:WMRGQvXuRHsqZhihbxgaKPixDrleGT

Score

10^/10

rhadamanthys collection discovery spyware stealer

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 2 IoCs

resource	yara_rule
behavioral2/memory/4212-137-0x0000000002270000-0x000000000228D000-memory.dmp	family_rhadamanthys
behavioral2/memory/4212-145-0x0000000002270000-0x000000000228D000-memory.dmp	family_rhadamanthys

Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
stealer rhadamanthys

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	872	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
872	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3436	4212	WerFault.exe	78
1292	872	WerFault.exe	79

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
872	rundll32.exe
872	rundll32.exe
872	rundll32.exe
872	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4212 wrote to memory of 872	4212	tmp.exe	79
PID 4212 wrote to memory of 872	4212	tmp.exe	79

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4212
- C:\Windows\system32\rundll32.exe
  "C:\Users\Admin\AppData\Roaming\nsis_unse56799a.dll",PrintUIEntry |5CQkOhmAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBQPz8FfqJwBHGwBYPwB3AFb6IQBSPwBGADQAeP4tAllIg+wo6AT|AgAASIPEKMP|zMzMTIlEJBj|SIlUJBBIiUz7JAhdAUiLRCQwb0iJBCSBAThIbwC|CEjHRCQQLQHrfQ6BARBIg8ABjwHdEIEBQEg5lgBzJf6fA4sMJEgDyEhfi8FIi0yrAVR7AP8D0UiLyooJiPcI68FmBWVIiwT7JWDz8DPJSItQ|xhIO9F0NkiD|8IgSIsCSDvC|3QqZoN4SBh1|xpMi0BQZkGD7zhrdAcREUt1CP4REHgQLnQFSIu|AOvVSItI|QDB|moAQFNVVldBVL9BVUFWQVddAWb|gTlNWk2L+Ez|i|JIi9kPhfz+8|BMY0k8QYE8|wlQRQAAD4XqvvPwQYuECYjz8IX|wEiNPAEPhNbeahGDvAmMLQEPhP3H8|BEi2cgRIv|XxyLdyREi0||GEwD4UwD2Uj|A|EzyUWFyQ|7hKTz8E2LxEGL|xBFM9JIA9OK|wKEwHQdQcHK7w0PvsD6AAFEA|3QvxF17EGB+qr||A18dA6DwQH|SYPABEE7yXP|aevGi8EPtwz|TkWLLItMA+vvdFgz7aoQdFFB+4sUwQDTM8mKAn9Mi8LrD8HJyBF7A8jlEAFBigDVEP|tM8Az9kE7DPm24BCmAIPGAYP4|why7usKSIvL|0H|1UmJBPeD|cXkEMQEO28Ycv2vZgFBX0FeQV2|QVxfXl1bMxdI74HsYAFkAIvp6P9m|v||SIXAD1uEmHUgTI2vAYsrEN|IM||om30gjV||BEyNRUYz0ovfy|9UJGiAIEyLr+APhGt1IEWoEDP3wIvTkSBIiXwk9SCmIHCAIEiL8A|zhEt1IKYgUEiNVv8IRI1HQEiNjP0khRFIi9jofP2ufiCNVkjeIBDiIcz28|DoZ+8gRIsGjdNXCEEgpiBYyiGJhGskgIcS3vPwiw7aII9YiYwkcREHMJEg6O0x7yCLnC0yTItdvzpIg|tsSIogMP9MiWQkOEyLpO4aMkyJXIQBhCTctocRhpKNEY1HSzCM+yTw8|BJi9To6e38BTCKnHgySI2E|ngyQYDzIY1PbPdEMBikAoPpAXX384G8eDIhUmV4v3VNi4Qk9CIxlPsk+DUBwkg72HL|OIP6bHYzRI17SUD6AJRBuACYAHqmIEDKIvh0GUS2ML7AMUmNVCRskSBJ34PobOhrgjBIi|3OpiB4SIX|dBLPi1VCTI4wGzFIjf9MJED|10iBxAB0IWEkLQgtAQ==
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - outlook_office_path
  - outlook_win_path
  PID:872
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 872 -s 532
    3⤵
    - Program crash
    PID:1292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4212 -s 696
  2⤵
  - Program crash
  PID:3436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4212 -ip 4212
1⤵
PID:4616

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 420 -p 872 -ip 872
1⤵
PID:4804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\nsis_unse56799a.dll

Filesize
49KB

MD5
832890fded186835970d1d3302590138

SHA1
5385703e9dcde43e60928b2e9c941b7232468a6a

SHA256
438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576

SHA512
5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1

Download Submit
C:\Users\Admin\AppData\Roaming\nsis_unse56799a.dll

Filesize
49KB

MD5
832890fded186835970d1d3302590138

SHA1
5385703e9dcde43e60928b2e9c941b7232468a6a

SHA256
438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576

SHA512
5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1

Download Submit
memory/872-147-0x00007FF827630000-0x00007FF827642000-memory.dmp

Filesize
72KB

Download
memory/872-146-0x00007FF451C40000-0x00007FF451D3A000-memory.dmp

Filesize
1000KB

Download
memory/872-142-0x00007FF451C40000-0x00007FF451D3A000-memory.dmp

Filesize
1000KB

Download
memory/872-141-0x000001C14DFF0000-0x000001C14DFF7000-memory.dmp

Filesize
28KB

Download
memory/4212-136-0x0000000000621000-0x0000000000632000-memory.dmp

Filesize
68KB

Download
memory/4212-137-0x0000000002270000-0x000000000228D000-memory.dmp

Filesize
116KB

Download
memory/4212-132-0x0000000000621000-0x0000000000632000-memory.dmp

Filesize
68KB

Download
memory/4212-135-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/4212-143-0x00000000005FE000-0x000000000061F000-memory.dmp

Filesize
132KB

Download
memory/4212-144-0x0000000000621000-0x0000000000632000-memory.dmp

Filesize
68KB

Download
memory/4212-145-0x0000000002270000-0x000000000228D000-memory.dmp

Filesize
116KB

Download
memory/4212-134-0x00000000021C0000-0x00000000021E5000-memory.dmp

Filesize
148KB

Download
memory/4212-133-0x00000000005FE000-0x000000000061F000-memory.dmp

Filesize
132KB

Download

Analysis

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