rhadamanthys | a9acf0763805c33d4dfbdfae22e6b0209fdf4b6557dba5e3679208d23323e5a4

General

Target

file.exe
Size

278KB
MD5

41741bc698fdf1377f4be987b6d3e320
SHA1

aada55f0bee1fed44f811a27bf3a1c267e8b618f
SHA256

a9acf0763805c33d4dfbdfae22e6b0209fdf4b6557dba5e3679208d23323e5a4
SHA512

823287dea1edbe02fb37e43835d99e48d66463db495d807c027b48db8d7bf7cbffc8008b5e46bb9bdc685a75cfb2e05d503b1002ddf7ba0d93087f3251890492
SSDEEP

6144:gW8YUSl4LoLrtHJ86jbPdGsLFma9x5hO15Q:gWb/4cLrZJ86jblGKy1

Score

10^/10

rhadamanthys collection discovery spyware stealer

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 2 IoCs

resource	yara_rule
behavioral2/memory/3836-136-0x0000000004980000-0x000000000499D000-memory.dmp	family_rhadamanthys
behavioral2/memory/3836-144-0x0000000004980000-0x000000000499D000-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
28	3716	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
3716	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-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\12.0\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
4712	3836	WerFault.exe	79
3888	3716	WerFault.exe	80

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3716	rundll32.exe
3716	rundll32.exe
3716	rundll32.exe
3716	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 3716	3836	file.exe	80
PID 3836 wrote to memory of 3716	3836	file.exe	80

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3836
- C:\Windows\system32\rundll32.exe
  "C:\Users\Admin\AppData\Roaming\nsis_unse567ddf.dll",PrintUIEntry |5CQkOhmAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBQPz8Da+FwBoAE8ASzsAWvsAdB8ASgBvADf6JwB3LQJZSIPsKP|oBAIAAEiDxP8ow8zMzEyJRP8kGEiJVCQQSO+JTCQIXQFIi0S|JDBIiQQkgQE4|UhvAAhIx0QkEPYtAesOgQEQSIPAdQGPARCBAUBIOZYA+3MlnwOLDCRIA3|ISIvBSItMqwH9VHsAA9FIi8qK3wmICOvBZgVlSO+LBCVg8|AzyUj|i1AYSDvRdDb|SIPCIEiLAkj|O8J0KmaDeEj|GHUaTItAUGa|QYM4a3QHERFL+3UIERB4EC50Bf9IiwDr1UiLSPr9AMFqAEBTVVZX|0FUQVVBVkFX|l0BZoE5TVpNi||4TIvySIvZD|uF|PPwTGNJPEH|gTwJUEUAAA|7herz8EGLhAmI|vPwhcBIjTwBD3uE1moRg7wJjC0B9w+Ex|PwRItnIP9Ei18ci3ckRP+LTxhMA+FMA||ZSAPxM8lFhe|JD4Sk8|BNi8T|QYsQRTPSSAP|04oChMB0HUG|wcoND77A+gAB90QD0L8RdexBgf|6qvwNfHQOg||BAUmDwARBO||Jc2nrxovBD|+3DE5FiyyLTL8D63RYM+2qEHTvUUGLFMEA0zPJ|4oCTIvC6w|B7cnIEQPI5RABQYr9ANUQ7TPAM|ZB5zsMtuAQpgCDxgH|g|gIcu7rCkj|i8tB|9VJiQT394PF5BDEBDtv9xhyr2YBQV9BXv9BXUFcX15dW74zF0iB7GABZACL|+noZv7||0iFb8APhJh1IEyNrwF9iysQyDP|6Jt9IP+NXwRMjUVGM3|Si8v|VCRogCC|TIvgD4RrdSBF3qgQM8CL05EgSInXfCQgpiBwgCBIi8|wD4RLdSCmIFBI|41WCESNR0BI942MJIURSIvY6Lt8|X4gjVZI3iAQ2uIhzPPw6GfvIESLTwaNVwhBIKYgWMohr4mEJICHEt7z8Is9DtogWImMJHERBzC2kSDoMe8gi5wtMkz|i106SIP7bEj+iiAwTIlkJDhMu4ukGjJMiVyEAYTbJNyHEYaSjRGNR+5LMIwk8PPwSYvUt+jp|AUwipx4Mkj7jYR4MkGA8yGN309sRDAYpAKD6d8BdfOBvHgyIVL|ZXh1TYuEJPTuIjGUJPg1AcJIO||YcjiD+mx2M+9EjUlA+gCUQbjpAJgApiBAyiL4dBn5RLYwwDFJjVQkbH6RIEmD6Gzoa4Iw90iLzqYgeEiF|z90EotVQkyOMBsx|0iNTCRA|9dIA4HEdCFhJC0ILQE=
  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:3716
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3716 -s 736
    3⤵
    - Program crash
    PID:3888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3836 -s 696
  2⤵
  - Program crash
  PID:4712

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3836 -ip 3836
1⤵
PID:4816

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 404 -p 3716 -ip 3716
1⤵
PID:4172

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\nsis_unse567ddf.dll

Filesize
49KB

MD5
832890fded186835970d1d3302590138

SHA1
5385703e9dcde43e60928b2e9c941b7232468a6a

SHA256
438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576

SHA512
5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1

Download Submit
C:\Users\Admin\AppData\Roaming\nsis_unse567ddf.dll

Filesize
49KB

MD5
832890fded186835970d1d3302590138

SHA1
5385703e9dcde43e60928b2e9c941b7232468a6a

SHA256
438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576

SHA512
5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1

Download Submit
memory/3716-140-0x00000262D2770000-0x00000262D2777000-memory.dmp

Filesize
28KB

Download
memory/3716-147-0x00007FF825550000-0x00007FF825562000-memory.dmp

Filesize
72KB

Download
memory/3716-146-0x00007FF40BBF0000-0x00007FF40BCEA000-memory.dmp

Filesize
1000KB

Download
memory/3716-145-0x00007FF40BBF0000-0x00007FF40BCEA000-memory.dmp

Filesize
1000KB

Download
memory/3716-141-0x00007FF40BBF0000-0x00007FF40BCEA000-memory.dmp

Filesize
1000KB

Download
memory/3716-137-0x0000000000000000-mapping.dmp

Download
memory/3836-136-0x0000000004980000-0x000000000499D000-memory.dmp

Filesize
116KB

Download
memory/3836-132-0x0000000002D89000-0x0000000002DA9000-memory.dmp

Filesize
128KB

Download
memory/3836-142-0x0000000002D89000-0x0000000002DA9000-memory.dmp

Filesize
128KB

Download
memory/3836-143-0x0000000000400000-0x0000000002BAF000-memory.dmp

Filesize
39.7MB

Download
memory/3836-144-0x0000000004980000-0x000000000499D000-memory.dmp

Filesize
116KB

Download
memory/3836-135-0x0000000002DAE000-0x0000000002DBF000-memory.dmp

Filesize
68KB

Download
memory/3836-134-0x0000000000400000-0x0000000002BAF000-memory.dmp

Filesize
39.7MB

Download
memory/3836-133-0x0000000002D40000-0x0000000002D65000-memory.dmp

Filesize
148KB

Download

Analysis

Sharing