rhadamanthys | 876feac850e9030e3aff1b7bd69f85a613d21661e9350b7fa10dd263a61724fe

General

Target

msvcp110.dll
Size

652KB
MD5

536bc1eadab8af8f052544cfcd5150ec
SHA1

ff3c9ee18e0e6f3f3a7b04e6c4c210d0adf29232
SHA256

876feac850e9030e3aff1b7bd69f85a613d21661e9350b7fa10dd263a61724fe
SHA512

33eae31cee1dd47e490111c7cd2fc0871e69b5a42fb24d807aa52b65ca9a6e457028ff8bea1ca2115a05f4ff99dd2c6c8075e3267d19b62b15087b437ca09d6c
SSDEEP

12288:vgQY+jL8MsthpNREymEG26+hbE64VJuzl8vr4JHdi7:vy5thpNRFxXblE67mX7

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 992 created 2564 992 aspnet_regiis.exe sihost.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 2988 set thread context of 992 2988 rundll32.exe aspnet_regiis.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

1028 992 WerFault.exe aspnet_regiis.exe
428 992 WerFault.exe aspnet_regiis.exe

description	pid	process	target process
PID 992 created 2564	992	aspnet_regiis.exe	sihost.exe

description	pid	process	target process
PID 2988 set thread context of 992	2988	rundll32.exe	aspnet_regiis.exe

pid	pid_target	process	target process
1028	992	WerFault.exe	aspnet_regiis.exe
428	992	WerFault.exe	aspnet_regiis.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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:

rundll32.exeaspnet_regiis.exeopenwith.exe

description	ioc	process
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

992 aspnet_regiis.exe
992 aspnet_regiis.exe
4120 openwith.exe
4120 openwith.exe
4120 openwith.exe
4120 openwith.exe

pid	process
992	aspnet_regiis.exe
992	aspnet_regiis.exe
4120	openwith.exe
4120	openwith.exe
4120	openwith.exe
4120	openwith.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

rundll32.exerundll32.exeaspnet_regiis.exe

description	pid	process	target process
PID 2172 wrote to memory of 2988	2172	rundll32.exe	rundll32.exe
PID 2172 wrote to memory of 2988	2172	rundll32.exe	rundll32.exe
PID 2172 wrote to memory of 2988	2172	rundll32.exe	rundll32.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 2988 wrote to memory of 992	2988	rundll32.exe	aspnet_regiis.exe
PID 992 wrote to memory of 4120	992	aspnet_regiis.exe	openwith.exe
PID 992 wrote to memory of 4120	992	aspnet_regiis.exe	openwith.exe
PID 992 wrote to memory of 4120	992	aspnet_regiis.exe	openwith.exe
PID 992 wrote to memory of 4120	992	aspnet_regiis.exe	openwith.exe
PID 992 wrote to memory of 4120	992	aspnet_regiis.exe	openwith.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2564
- C:\Windows\SysWOW64\openwith.exe
  "C:\Windows\system32\openwith.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4120

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcp110.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcp110.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe"
    3⤵
    - Suspicious use of NtCreateUserProcessOtherParentProcess
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:992
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 992 -s 432
      4⤵
      Program crash
      PID:1028
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 992 -s 428
      4⤵
      Program crash
      PID:428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 992 -ip 992
1⤵
PID:3784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 992 -ip 992
1⤵
PID:1580

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

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Downloads

memory/992-9-0x00007FF9E8E90000-0x00007FF9E9085000-memory.dmp

Filesize
2.0MB

Download
memory/992-16-0x0000000003E50000-0x0000000004250000-memory.dmp

Filesize
4.0MB

Download
memory/992-10-0x0000000003E50000-0x0000000004250000-memory.dmp

Filesize
4.0MB

Download
memory/992-4-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/992-5-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/992-7-0x0000000003E50000-0x0000000004250000-memory.dmp

Filesize
4.0MB

Download
memory/992-6-0x0000000003E50000-0x0000000004250000-memory.dmp

Filesize
4.0MB

Download
memory/992-8-0x0000000003E50000-0x0000000004250000-memory.dmp

Filesize
4.0MB

Download
memory/992-3-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/992-2-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/992-12-0x00000000763D0000-0x00000000765E5000-memory.dmp

Filesize
2.1MB

Download
memory/2988-1-0x0000000077751000-0x0000000077871000-memory.dmp

Filesize
1.1MB

Download
memory/4120-13-0x00000000004F0000-0x00000000004F9000-memory.dmp

Filesize
36KB

Download
memory/4120-15-0x0000000002170000-0x0000000002570000-memory.dmp

Filesize
4.0MB

Download
memory/4120-22-0x0000000002170000-0x0000000002570000-memory.dmp

Filesize
4.0MB

Download
memory/4120-17-0x0000000002170000-0x0000000002570000-memory.dmp

Filesize
4.0MB

Download
memory/4120-20-0x00000000763D0000-0x00000000765E5000-memory.dmp

Filesize
2.1MB

Download
memory/4120-21-0x0000000002170000-0x0000000002570000-memory.dmp

Filesize
4.0MB

Download
memory/4120-18-0x00007FF9E8E90000-0x00007FF9E9085000-memory.dmp

Filesize
2.0MB

Download

Analysis

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