rhadamanthys | a18fb19c7e1e805155fdd956e00046c6e492fce5b07aa1e21b688758ff8dbb22

General

Target

bootstrap/vstdlib_s64.dll
Size

3.2MB
MD5

2af311d5fdb8df6250ee6681edea15bb
SHA1

68cea60147b29ae47fd18d97698e9bcf6f713c36
SHA256

c1cd2c6fd3c17d9e67ec45436064b911f2dc81fb2c32ece5ef9878b8af35dda5
SHA512

b20a08a1690dac97c456acc1cd8bfe01b3310c490abee3063a5189f45e28e0ac116f313524b9ca5003b84e2cc07c090e28a9fa9240fa3e4f03d9cf1fe00240de
SSDEEP

49152:wSN5WWMbW0m7Dng+arKHXKS2n4qBJ9X1LaYztS:FV4546S2n4Q9Fh

Score

10^/10

rhadamanthys defense_evasion discovery stealer

Malware Config

Signatures

Detects Rhadamanthys payload 4 IoCs

resource	yara_rule
behavioral12/memory/3872-1-0x0000000000400000-0x0000000000481000-memory.dmp	Rhadamanthys_v8
behavioral12/memory/3872-4-0x0000000000400000-0x0000000000481000-memory.dmp	Rhadamanthys_v8
behavioral12/memory/3872-3-0x0000000000400000-0x0000000000481000-memory.dmp	Rhadamanthys_v8
behavioral12/memory/3872-2-0x0000000000400000-0x0000000000481000-memory.dmp	Rhadamanthys_v8

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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3872 created 2708	3872	aspnet_wp.exe	45

Enumerates VirtualBox registry keys 2 TTPs 3 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo	rundll32.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	rundll32.exe

Looks for VMWare services registry key. 1 TTPs 2 IoCs

defense_evasion

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\vmtools	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VMMEMCTL	rundll32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1192 set thread context of 3872	1192	rundll32.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4064	3872	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_wp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fontdrvhost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1192	rundll32.exe
3872	aspnet_wp.exe
3872	aspnet_wp.exe
3872	aspnet_wp.exe
3872	aspnet_wp.exe
2676	fontdrvhost.exe
2676	fontdrvhost.exe
2676	fontdrvhost.exe
2676	fontdrvhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1192	rundll32.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 1192 wrote to memory of 3872	1192	rundll32.exe	84
PID 3872 wrote to memory of 2676	3872	aspnet_wp.exe	88
PID 3872 wrote to memory of 2676	3872	aspnet_wp.exe	88
PID 3872 wrote to memory of 2676	3872	aspnet_wp.exe	88
PID 3872 wrote to memory of 2676	3872	aspnet_wp.exe	88
PID 3872 wrote to memory of 2676	3872	aspnet_wp.exe	88

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2708
- C:\Windows\SysWOW64\fontdrvhost.exe
  "C:\Windows\System32\fontdrvhost.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2676

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bootstrap\vstdlib_s64.dll,#1
1⤵
- Enumerates VirtualBox registry keys
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare services registry key.
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3872
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 344
    3⤵
    - Program crash
    PID:4064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3872 -ip 3872
1⤵
PID:1104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

3

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

3

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1192-0-0x00007FFC14AD0000-0x00007FFC14EB2000-memory.dmp

Filesize
3.9MB

Download
memory/2676-12-0x0000000001000000-0x000000000100A000-memory.dmp

Filesize
40KB

Download
memory/2676-20-0x0000000001290000-0x0000000001690000-memory.dmp

Filesize
4.0MB

Download
memory/2676-18-0x00000000778E0000-0x0000000077AF5000-memory.dmp

Filesize
2.1MB

Download
memory/2676-19-0x0000000001290000-0x0000000001690000-memory.dmp

Filesize
4.0MB

Download
memory/2676-16-0x00007FFC32470000-0x00007FFC32665000-memory.dmp

Filesize
2.0MB

Download
memory/2676-14-0x0000000001290000-0x0000000001690000-memory.dmp

Filesize
4.0MB

Download
memory/2676-15-0x0000000001290000-0x0000000001690000-memory.dmp

Filesize
4.0MB

Download
memory/3872-2-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3872-8-0x00007FFC32470000-0x00007FFC32665000-memory.dmp

Filesize
2.0MB

Download
memory/3872-11-0x00000000778E0000-0x0000000077AF5000-memory.dmp

Filesize
2.1MB

Download
memory/3872-9-0x0000000001490000-0x0000000001890000-memory.dmp

Filesize
4.0MB

Download
memory/3872-7-0x0000000001490000-0x0000000001890000-memory.dmp

Filesize
4.0MB

Download
memory/3872-6-0x0000000001490000-0x0000000001890000-memory.dmp

Filesize
4.0MB

Download
memory/3872-5-0x0000000001490000-0x0000000001890000-memory.dmp

Filesize
4.0MB

Download
memory/3872-3-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3872-4-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3872-1-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/3872-21-0x0000000001490000-0x0000000001890000-memory.dmp

Filesize
4.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads