rhadamanthys | 576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e

General

Target

576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe
Size

2.3MB
MD5

c05d093d1274562a0fa00e0b2c8bea5d
SHA1

e91b1526bb9ad0d80a785de7423baab366d5480e
SHA256

576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e
SHA512

0d66ea8b0eb79c68fb9a7136a8c13962b70b457269af2dcce157289d85c8016dbdac0395d66764581456bde7856a77655e168490ebc63cb5f3501650c648a065
SSDEEP

24576:SR7d5Ic2Yc637ccFU/+VxjETkFqW0KbzYKVocc3Sxe31HZsGutdf7D1PGhWgOpBJ:wjIcK6hUSfchcHH1PEABhj

Score

10^/10

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 3 IoCs

resource	yara_rule
behavioral1/memory/1716-75-0x0000000000150000-0x000000000016C000-memory.dmp	family_rhadamanthys
behavioral1/memory/1716-77-0x0000000000150000-0x000000000016C000-memory.dmp	family_rhadamanthys
behavioral1/memory/1716-79-0x0000000000150000-0x000000000016C000-memory.dmp	family_rhadamanthys

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

Enumerates VirtualBox registry keys 2 TTPs 5 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	RegAsm.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__	RegAsm.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__	RegAsm.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	RegAsm.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	RegAsm.exe

Checks BIOS information in registry 2 TTPs 3 IoCs

BIOS 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\SystemBiosVersion	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	RegAsm.exe

Checks system information in the registry 2 TTPs 2 IoCs

System 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\SYSTEM\ControlSet001\Control\SystemInformation\SystemManufacturer	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemProductName	RegAsm.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	RegAsm.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegAsm.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1620	powershell.exe
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe
1716	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1620	powershell.exe
Token: SeDebugPrivilege	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe
Token: SeShutdownPrivilege	1716	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 1620	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	28
PID 1704 wrote to memory of 1620	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	28
PID 1704 wrote to memory of 1620	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	28
PID 1704 wrote to memory of 1620	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	28
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31
PID 1704 wrote to memory of 1716	1704	576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe	31

C:\Users\Admin\AppData\Local\Temp\576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe
"C:\Users\Admin\AppData\Local\Temp\576f2b2a8d4adb743a7e9d7c163e37411b2a5ca25011156df57d3cf54a0a7e1e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1620
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  2⤵
  - Enumerates VirtualBox registry keys
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Checks system information in the registry
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1716

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

4

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

5

T1082

Virtualization/Sandbox Evasion

4

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1620-60-0x0000000001E00000-0x0000000001E40000-memory.dmp

Filesize
256KB

Download
memory/1704-54-0x0000000000B30000-0x0000000000D8A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-55-0x0000000004A70000-0x0000000004BD2000-memory.dmp

Filesize
1.4MB

Download
memory/1704-56-0x0000000004BE0000-0x0000000004C20000-memory.dmp

Filesize
256KB

Download
memory/1704-57-0x0000000004C20000-0x0000000004CB2000-memory.dmp

Filesize
584KB

Download
memory/1704-61-0x0000000004BE0000-0x0000000004C20000-memory.dmp

Filesize
256KB

Download
memory/1716-67-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1716-70-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-63-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-65-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-62-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-66-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-68-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-64-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-72-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-74-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download
memory/1716-75-0x0000000000150000-0x000000000016C000-memory.dmp

Filesize
112KB

Download
memory/1716-76-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/1716-77-0x0000000000150000-0x000000000016C000-memory.dmp

Filesize
112KB

Download
memory/1716-79-0x0000000000150000-0x000000000016C000-memory.dmp

Filesize
112KB

Download
memory/1716-80-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads