rhadamanthys | 7d2102bb62f4eb41eac647e66f4f37eabce90eece6e0589603108b03ebfe300c

General

Target

rh1.exe
Size

444KB
MD5

af1efddb3afaf3bf4d121a9d4c7e7d68
SHA1

f9943a72ca72fd7a7a3495d039cf37a0decb3998
SHA256

7d2102bb62f4eb41eac647e66f4f37eabce90eece6e0589603108b03ebfe300c
SHA512

efe933bb51b5abc0a8799dc0dd28f35c9ccaa7a8d09083649645640eb8015e594a46bc6cf2c721787e47b6239fafebb766832de98b770f087005a3f50612f710
SSDEEP

6144:IjKvnAzRPqkroWhcrTIhB1uA2dOJhhgWbMbitWGFNuldsfiy3NiGA:Ijzgk06oIuA6ahE+F0/y36

Score

10^/10

Malware Config

Signatures

Detect rhadamanthys stealer shellcode 2 IoCs

resource	yara_rule
behavioral1/memory/1164-55-0x0000000001D20000-0x0000000002120000-memory.dmp	family_rhadamanthys
behavioral1/memory/1164-56-0x0000000001D20000-0x0000000002120000-memory.dmp	family_rhadamanthys

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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1164 created 1292	1164	rh1.exe	12

Deletes itself 1 IoCs

pid	Process
1648	certreq.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3465915139-4244146034-2076118314-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3465915139-4244146034-2076118314-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3465915139-4244146034-2076118314-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3465915139-4244146034-2076118314-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3465915139-4244146034-2076118314-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3465915139-4244146034-2076118314-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe

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	certreq.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	certreq.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1164	rh1.exe
1164	rh1.exe
1164	rh1.exe
1164	rh1.exe
1648	certreq.exe
1648	certreq.exe
1648	certreq.exe
1648	certreq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 1648	1164	rh1.exe	28
PID 1164 wrote to memory of 1648	1164	rh1.exe	28
PID 1164 wrote to memory of 1648	1164	rh1.exe	28
PID 1164 wrote to memory of 1648	1164	rh1.exe	28
PID 1164 wrote to memory of 1648	1164	rh1.exe	28
PID 1164 wrote to memory of 1648	1164	rh1.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3465915139-4244146034-2076118314-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3465915139-4244146034-2076118314-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1292
- C:\Users\Admin\AppData\Local\Temp\rh1.exe
  "C:\Users\Admin\AppData\Local\Temp\rh1.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1164
- C:\Windows\system32\certreq.exe
  "C:\Windows\system32\certreq.exe"
  2⤵
  - Deletes itself
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - outlook_office_path
  - outlook_win_path
  PID:1648

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1164-64-0x00000000003C0000-0x00000000003F6000-memory.dmp

Filesize
216KB

Download
memory/1164-55-0x0000000001D20000-0x0000000002120000-memory.dmp

Filesize
4.0MB

Download
memory/1164-56-0x0000000001D20000-0x0000000002120000-memory.dmp

Filesize
4.0MB

Download
memory/1164-54-0x0000000000230000-0x0000000000237000-memory.dmp

Filesize
28KB

Download
memory/1164-58-0x00000000003C0000-0x00000000003F6000-memory.dmp

Filesize
216KB

Download
memory/1648-68-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-71-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-66-0x00000000003A0000-0x00000000003A7000-memory.dmp

Filesize
28KB

Download
memory/1648-57-0x00000000000E0000-0x00000000000E3000-memory.dmp

Filesize
12KB

Download
memory/1648-67-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-69-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-70-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-65-0x00000000000E0000-0x00000000000E3000-memory.dmp

Filesize
12KB

Download
memory/1648-73-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-74-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-75-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-76-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-77-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1648-78-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download

Analysis

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