rhadamanthys | 5878e738c8b3e36e7b1778ba14f8a00766f079d9c7555d9de2a01f633d7dbf37

Analysis

max time kernel
105s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2023, 16:06

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General

Target
file.exe
Size 291KB
Sample230218-tj267scf66
SHA256 5878e738c8b3e36e7b1778ba14f8a00766f079d9c7555d9de2a01f633d7dbf37
MD5 23d656a149c2858db13a5e15b9cb40ee
SHA1 4d74820df4ba129f8661143ec4b488f9aa1dcc19
SHA512 699bb90304f0fa09cdd54ed75274887b9a3e99c247d9bbce1637919d39d336b524e54f95c9f66e2164bf2b0179dced64a57e6357f4704844916d0fb87cbb4d52
SSDEEP 6144:o7r6LhonXq02R1lzaCZ9BaURjOrkMpgamtw6:oP6tonXNI1lzag9BlF3MRmT
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

rhadamanthys collection discovery spyware stealer

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 2 IoCs

resource	yara_rule
behavioral2/memory/3040-137-0x0000000002350000-0x000000000236D000-memory.dmp	family_rhadamanthys
behavioral2/memory/3040-146-0x0000000002350000-0x000000000236D000-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
13	1316	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1316	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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	rundll32.exe
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\10.0\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
1976	3040	WerFault.exe	81
1804	1316	WerFault.exe	82

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
1316	rundll32.exe
1316	rundll32.exe
1316	rundll32.exe
1316	rundll32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 1316	3040	file.exe	82
PID 3040 wrote to memory of 1316	3040	file.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	rundll32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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:3040
- C:\Windows\system32\rundll32.exe
  "C:\Users\Admin\AppData\Roaming\nsis_unse568ded.dll",PrintUIEntry |5CQkOhmAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBQPz8Gr|ADYAaABwAFX|AE8AVwBzAEj|AEwAdgBSAHf8JwAtAVlIg+wo6P8EAgAASIPEKP|DzMzMTIlEJP8YSIlUJBBIifdMJAhdAUiLRCTfMEiJBCSBAThIfm8ACEjHRCQQLQH76w6BARBIg8ABuo8BEIEBQEg5lgBz|SWfA4sMJEgDyL9Ii8FIi0yrAVT+ewAD0UiLyooJ74gI68FmBWVIi|cEJWDz8DPJSIv|UBhIO9F0Nkj|g8IgSIsCSDv|wnQqZoN4SBj|dRpMi0BQZkHfgzhrdAcREUt1|QgREHgQLnQFSH+LAOvVSItI|QD9wWoAQFNVVldBf1RBVUFWQVddAf9mgTlNWk2L+P9Mi|JIi9kPhf388|BMY0k8QYH|PAlQRQAAD4V96vPwQYuECYjz8P+FwEiNPAEPhL3WahGDvAmMLQEP+4TH8|BEi2cgRP+LXxyLdyREi|9PGEwD4UwD2f9IA|EzyUWFyfcPhKTz8E2LxEH|ixBFM9JIA9P|igKEwHQdQcHfyg0PvsD6AAFE+wPQvxF17EGB+v+q|A18dA6Dwf8BSYPABEE7yf9zaevGi8EPt|8MTkWLLItMA9|rdFgz7aoQdFH3QYsUwQDTM8mK|wJMi8LrD8HJ9sgRA8jlEAFBigD+1RDtM8Az9kE78wy24BCmAIPGAYP|+Ahy7usKSIv|y0H|1UmJBPf7g8XkEMQEO28Y+3KvZgFBX0FeQX9dQVxfXl1bMxffSIHsYAFkAIvp|+hm|v||SIXAtw+EmHUgTI2vAYu+KxDIM||om30gjf9fBEyNRUYz0r+Ly|9UJGiAIExfi+APhGt1IEWoEO8zwIvTkSBIiXzrJCCmIHCAIEiL8OcPhEt1IKYgUEiN|1YIRI1HQEiN+4wkhRFIi9jofF39fiCNVkjeIBDiIe3M8|DoZ+8gRIsGp41XCEEgpiBYyiGJ14QkgIcS3vPwiw4e2iBYiYwkcREHMJEg2+gx7yCLnC0yTIt|XTpIg|tsSIog|zBMiWQkOEyL3aQaMkyJXIQBhCRt3IcRhpKNEY1HSzD3jCTw8|BJi9To2+n8BTCKnHgySI39hHgyQYDzIY1P72xEMBikAoPpAe9184G8eDIhUmV|eHVNi4Qk9CIx95Qk+DUBwkg72P9yOIP6bHYzRPeNSUD6AJRBuAD0mACmIEDKIvh0GUR8tjDAMUmNVCRskSC|SYPobOhrgjBI+4vOpiB4SIX|dJ8Si1VCTI4wGzFI|41MJED|10iBAcR0IWEkLQgtAQ==
  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:1316
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 1316 -s 592
    3⤵
    - Program crash
    PID:1804
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3040 -s 712
  2⤵
  - Program crash
  PID:1976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3040 -ip 3040
1⤵
PID:5064

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 460 -p 1316 -ip 1316
1⤵
PID:3172

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

nsis_unse568ded.dll

Path C:\Users\Admin\AppData\Roaming\nsis_unse568ded.dll
Size 49KB
SHA256 438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576
MD5 832890fded186835970d1d3302590138
SHA1 5385703e9dcde43e60928b2e9c941b7232468a6a
SHA512 5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1
SSDEEP 768:aFrMkWGTEB8sbPDzuW68Ps3yJXMH5Tts9sxlBakygO7wDyEpSDAWG2NqQbZq3sYU:atbDTvBW71G5S9sxlckyV7w5pSAdV3C
MD5 SHA1 SHA512 SSDEEP

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nsis_unse568ded.dll

Path C:\Users\Admin\AppData\Roaming\nsis_unse568ded.dll
Size 49KB
SHA256 438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576
MD5 832890fded186835970d1d3302590138
SHA1 5385703e9dcde43e60928b2e9c941b7232468a6a
SHA512 5cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1
SSDEEP 768:aFrMkWGTEB8sbPDzuW68Ps3yJXMH5Tts9sxlBakygO7wDyEpSDAWG2NqQbZq3sYU:atbDTvBW71G5S9sxlckyV7w5pSAdV3C
MD5 SHA1 SHA512 SSDEEP

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memory/1316-148-0x00007FFA7E900000-0x00007FFA7E912000-memory.dmp

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memory/1316-147-0x00007FF4EADA0000-0x00007FF4EAE9A000-memory.dmp

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memory/1316-142-0x00007FF4EADA0000-0x00007FF4EAE9A000-memory.dmp

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memory/1316-141-0x0000029E04D00000-0x0000029E04D07000-memory.dmp

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memory/3040-137-0x0000000002350000-0x000000000236D000-memory.dmp

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memory/3040-136-0x0000000000723000-0x0000000000734000-memory.dmp

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memory/3040-132-0x0000000000723000-0x0000000000736000-memory.dmp

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memory/3040-135-0x0000000000400000-0x000000000057A000-memory.dmp

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memory/3040-143-0x00000000006FF000-0x0000000000720000-memory.dmp

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memory/3040-144-0x0000000000400000-0x000000000057A000-memory.dmp

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memory/3040-145-0x0000000000723000-0x0000000000734000-memory.dmp

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memory/3040-146-0x0000000002350000-0x000000000236D000-memory.dmp

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memory/3040-134-0x0000000000640000-0x0000000000665000-memory.dmp

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memory/3040-133-0x00000000006FF000-0x0000000000720000-memory.dmp

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