rhadamanthys | 00086cf4f35b6fb7f897cfa2f0d5ad9876aa9819cdc87416c798005ce901d3a1

General

Target

msimg32.dll
Size

1.9MB
MD5

ba8a29088dd3dc919f90ef70c65e38dc
SHA1

c4a61b1115e3827bd324449427a66fc15fcb6f79
SHA256

9bdf49b27fd4d80ef087f63e0bfa0a0822686814863eca09ac506404ad76dfda
SHA512

2981fd23165bd8a24fafc3ed95879d25f1a452a625a43fa07538b67f733a7d5f383519e895d374f573ce2183afac62e7aa8c27d84d626174026d5a2efcdb14ed
SSDEEP

24576:rdqeOXnrNOEMudreb7LVkhdyJYKkbg6psPyWwxnMqfbc5MU47iA8koWOmydA7iRC:rtZA+rMVL7pZLOkALP7fiRHkG

Score

10^/10

rhadamanthys discovery persistence stealer

Malware Config

Extracted

Family

rhadamanthys

C2

https://15.235.176.166:8344/ecda3896be16ad7255/82pwxrmt.osobm

Signatures

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\*ChromeUpdate = "rundll32.exe C:\\Users\\Admin\\Documents\\FirefoxData.dll,EntryPoint"	reg.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

2280 rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2840 2156 WerFault.exe rundll32.exe

pid	process
2280	rundll32.exe

pid	pid_target	process	target process
2840	2156	WerFault.exe	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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.exerundll32.execmd.exereg.exe

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

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

rundll32.exerundll32.exerundll32.execmd.exe

description	pid	process	target process
PID 2412 wrote to memory of 2280	2412	rundll32.exe	rundll32.exe
PID 2412 wrote to memory of 2280	2412	rundll32.exe	rundll32.exe
PID 2412 wrote to memory of 2280	2412	rundll32.exe	rundll32.exe
PID 2412 wrote to memory of 2280	2412	rundll32.exe	rundll32.exe
PID 2412 wrote to memory of 2280	2412	rundll32.exe	rundll32.exe
PID 2412 wrote to memory of 2280	2412	rundll32.exe	rundll32.exe
PID 2412 wrote to memory of 2280	2412	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2280 wrote to memory of 2156	2280	rundll32.exe	rundll32.exe
PID 2156 wrote to memory of 2840	2156	rundll32.exe	WerFault.exe
PID 2156 wrote to memory of 2840	2156	rundll32.exe	WerFault.exe
PID 2156 wrote to memory of 2840	2156	rundll32.exe	WerFault.exe
PID 2156 wrote to memory of 2840	2156	rundll32.exe	WerFault.exe
PID 2280 wrote to memory of 2936	2280	rundll32.exe	cmd.exe
PID 2280 wrote to memory of 2936	2280	rundll32.exe	cmd.exe
PID 2280 wrote to memory of 2936	2280	rundll32.exe	cmd.exe
PID 2280 wrote to memory of 2936	2280	rundll32.exe	cmd.exe
PID 2936 wrote to memory of 2728	2936	cmd.exe	reg.exe
PID 2936 wrote to memory of 2728	2936	cmd.exe	reg.exe
PID 2936 wrote to memory of 2728	2936	cmd.exe	reg.exe
PID 2936 wrote to memory of 2728	2936	cmd.exe	reg.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2280
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2156
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2156 -s 196
      4⤵
      Program crash
      PID:2840
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2936
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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/2156-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2156-18-0x0000000000110000-0x000000000018E000-memory.dmp

Filesize
504KB

Download
memory/2156-7-0x0000000000110000-0x000000000018E000-memory.dmp

Filesize
504KB

Download
memory/2156-11-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/2156-17-0x0000000000110000-0x000000000018E000-memory.dmp

Filesize
504KB

Download
memory/2156-13-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/2156-20-0x0000000000110000-0x000000000018E000-memory.dmp

Filesize
504KB

Download
memory/2280-2-0x000000006C95E000-0x000000006C978000-memory.dmp

Filesize
104KB

Download
memory/2280-5-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/2280-16-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/2280-15-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/2280-3-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/2280-0-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/2280-1-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/2280-6-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/2280-22-0x000000006C95E000-0x000000006C978000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads