rhadamanthys | b47e08ce6d53f43190ac0916d21600657f6543115ca4fc41691341125cd80d45

General

Target

Loader/Loader.exe
Size

809KB
MD5

1fa6f63dc052d94c27d91e79d36b69ac
SHA1

31fc9f11f50deadeecfbec0471b191d573cfdc6a
SHA256

a4b163b2ee1fe3ff2a3e673595942adac19fc76ddd18e823ef09c1c729796c53
SHA512

44cca2e817a2b1895735003aa2f7c8e7559fe6cc3cff6006353d423814044dedf62f5d5da398ff6f5d12bfb6c4a7c4172ea1b86681b3bca9d480763e038a346d
SSDEEP

12288:jedDsSDCFcmYF5uB9rbN7lDZJLU/IKiIWZs:Ax6cmYF5OV75Lk5iV

Score

10^/10

rhadamanthys discovery stealer

Malware Config

Extracted

Family

rhadamanthys

C2

https://135.181.4.162:2423/97e9fc994198e76/9dq0b1sl.pbl6a

Signatures

Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
stealer rhadamanthys
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

aspnet_regiis.exe

description pid process target process

PID 4252 created 2656 4252 aspnet_regiis.exe sihost.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4812 rundll32.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 4812 set thread context of 4252 4812 rundll32.exe aspnet_regiis.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1976 4252 WerFault.exe aspnet_regiis.exe
4916 4252 WerFault.exe aspnet_regiis.exe

description	pid	process	target process
PID 4252 created 2656	4252	aspnet_regiis.exe	sihost.exe

pid	process
4812	rundll32.exe

description	pid	process	target process
PID 4812 set thread context of 4252	4812	rundll32.exe	aspnet_regiis.exe

pid	pid_target	process	target process
1976	4252	WerFault.exe	aspnet_regiis.exe
4916	4252	WerFault.exe	aspnet_regiis.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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

Processes:

Loader.execmd.exerundll32.exeaspnet_regiis.exeopenwith.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_regiis.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	openwith.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

aspnet_regiis.exeopenwith.exe

pid process

4252 aspnet_regiis.exe
4252 aspnet_regiis.exe
1940 openwith.exe
1940 openwith.exe
1940 openwith.exe
1940 openwith.exe

pid	process
4252	aspnet_regiis.exe
4252	aspnet_regiis.exe
1940	openwith.exe
1940	openwith.exe
1940	openwith.exe
1940	openwith.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

Loader.execmd.exerundll32.exeaspnet_regiis.exe

description	pid	process	target process
PID 624 wrote to memory of 1228	624	Loader.exe	cmd.exe
PID 624 wrote to memory of 1228	624	Loader.exe	cmd.exe
PID 624 wrote to memory of 1228	624	Loader.exe	cmd.exe
PID 1228 wrote to memory of 4812	1228	cmd.exe	rundll32.exe
PID 1228 wrote to memory of 4812	1228	cmd.exe	rundll32.exe
PID 1228 wrote to memory of 4812	1228	cmd.exe	rundll32.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4812 wrote to memory of 4252	4812	rundll32.exe	aspnet_regiis.exe
PID 4252 wrote to memory of 1940	4252	aspnet_regiis.exe	openwith.exe
PID 4252 wrote to memory of 1940	4252	aspnet_regiis.exe	openwith.exe
PID 4252 wrote to memory of 1940	4252	aspnet_regiis.exe	openwith.exe
PID 4252 wrote to memory of 1940	4252	aspnet_regiis.exe	openwith.exe
PID 4252 wrote to memory of 1940	4252	aspnet_regiis.exe	openwith.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2656
- C:\Windows\SysWOW64\openwith.exe
  "C:\Windows\system32\openwith.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1940

C:\Users\Admin\AppData\Local\Temp\Loader\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader\Loader.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:624
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\SysWOW64\rundll32.exe C:\Users\Admin\AppData\Roaming\msvcp110.dll,GetGameData
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1228
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\SysWOW64\rundll32.exe C:\Users\Admin\AppData\Roaming\msvcp110.dll,GetGameData
    3⤵
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4812
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe"
      4⤵
      Suspicious use of NtCreateUserProcessOtherParentProcess
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4252
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4252 -s 432
        5⤵
        Program crash
        
        PID:1976
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4252 -s 340
        5⤵
        Program crash
        
        PID:4916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4252 -ip 4252
1⤵
PID:668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4252 -ip 4252
1⤵
PID:3064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\msvcp110.dll

Filesize
652KB

MD5
536bc1eadab8af8f052544cfcd5150ec

SHA1
ff3c9ee18e0e6f3f3a7b04e6c4c210d0adf29232

SHA256
876feac850e9030e3aff1b7bd69f85a613d21661e9350b7fa10dd263a61724fe

SHA512
33eae31cee1dd47e490111c7cd2fc0871e69b5a42fb24d807aa52b65ca9a6e457028ff8bea1ca2115a05f4ff99dd2c6c8075e3267d19b62b15087b437ca09d6c

Download Submit
memory/1940-20-0x0000000000640000-0x0000000000649000-memory.dmp

Filesize
36KB

Download
memory/1940-28-0x0000000002260000-0x0000000002660000-memory.dmp

Filesize
4.0MB

Download
memory/1940-24-0x00007FF91FB10000-0x00007FF91FD05000-memory.dmp

Filesize
2.0MB

Download
memory/1940-26-0x0000000076680000-0x0000000076895000-memory.dmp

Filesize
2.1MB

Download
memory/1940-27-0x0000000002260000-0x0000000002660000-memory.dmp

Filesize
4.0MB

Download
memory/1940-23-0x0000000002260000-0x0000000002660000-memory.dmp

Filesize
4.0MB

Download
memory/1940-22-0x0000000002260000-0x0000000002660000-memory.dmp

Filesize
4.0MB

Download
memory/4252-12-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4252-14-0x00000000038B0000-0x0000000003CB0000-memory.dmp

Filesize
4.0MB

Download
memory/4252-19-0x00000000038B0000-0x0000000003CB0000-memory.dmp

Filesize
4.0MB

Download
memory/4252-18-0x0000000076680000-0x0000000076895000-memory.dmp

Filesize
2.1MB

Download
memory/4252-15-0x00000000038B0000-0x0000000003CB0000-memory.dmp

Filesize
4.0MB

Download
memory/4252-13-0x00000000038B0000-0x0000000003CB0000-memory.dmp

Filesize
4.0MB

Download
memory/4252-10-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4252-11-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4252-9-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/4252-16-0x00007FF91FB10000-0x00007FF91FD05000-memory.dmp

Filesize
2.0MB

Download
memory/4252-29-0x00000000038B0000-0x0000000003CB0000-memory.dmp

Filesize
4.0MB

Download
memory/4812-8-0x0000000076FA1000-0x00000000770C1000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing