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
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 3708 created 2516 3708 rundll32.exe sihost.exe

description	pid	process	target process
PID 3708 created 2516	3708	rundll32.exe	sihost.exe

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-1-5-21-2878641211-696417878-3864914810-1000\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

1452 rundll32.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4572 3708 WerFault.exe rundll32.exe
1592 3708 WerFault.exe rundll32.exe

pid	process
1452	rundll32.exe

pid	pid_target	process	target process
4572	3708	WerFault.exe	rundll32.exe
1592	3708	WerFault.exe	rundll32.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:

rundll32.exerundll32.execmd.exereg.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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	openwith.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

rundll32.exeopenwith.exe

pid process

3708 rundll32.exe
3708 rundll32.exe
4128 openwith.exe
4128 openwith.exe
4128 openwith.exe
4128 openwith.exe

pid	process
3708	rundll32.exe
3708	rundll32.exe
4128	openwith.exe
4128	openwith.exe
4128	openwith.exe
4128	openwith.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

rundll32.exerundll32.execmd.exerundll32.exe

description	pid	process	target process
PID 4140 wrote to memory of 1452	4140	rundll32.exe	rundll32.exe
PID 4140 wrote to memory of 1452	4140	rundll32.exe	rundll32.exe
PID 4140 wrote to memory of 1452	4140	rundll32.exe	rundll32.exe
PID 1452 wrote to memory of 3708	1452	rundll32.exe	rundll32.exe
PID 1452 wrote to memory of 3708	1452	rundll32.exe	rundll32.exe
PID 1452 wrote to memory of 3708	1452	rundll32.exe	rundll32.exe
PID 1452 wrote to memory of 3708	1452	rundll32.exe	rundll32.exe
PID 1452 wrote to memory of 3708	1452	rundll32.exe	rundll32.exe
PID 1452 wrote to memory of 3708	1452	rundll32.exe	rundll32.exe
PID 1452 wrote to memory of 1188	1452	rundll32.exe	cmd.exe
PID 1452 wrote to memory of 1188	1452	rundll32.exe	cmd.exe
PID 1452 wrote to memory of 1188	1452	rundll32.exe	cmd.exe
PID 1188 wrote to memory of 3924	1188	cmd.exe	reg.exe
PID 1188 wrote to memory of 3924	1188	cmd.exe	reg.exe
PID 1188 wrote to memory of 3924	1188	cmd.exe	reg.exe
PID 3708 wrote to memory of 4128	3708	rundll32.exe	openwith.exe
PID 3708 wrote to memory of 4128	3708	rundll32.exe	openwith.exe
PID 3708 wrote to memory of 4128	3708	rundll32.exe	openwith.exe
PID 3708 wrote to memory of 4128	3708	rundll32.exe	openwith.exe
PID 3708 wrote to memory of 4128	3708	rundll32.exe	openwith.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2516
- C:\Windows\SysWOW64\openwith.exe
  "C:\Windows\system32\openwith.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4128

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\msimg32.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4140
- 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:1452
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - Suspicious use of NtCreateUserProcessOtherParentProcess
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3708
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3708 -s 580
      4⤵
      Program crash
      PID:4572
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3708 -s 600
      4⤵
      Program crash
      PID:1592
- - 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:1188
  - - 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:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3708 -ip 3708
1⤵
PID:1152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3708 -ip 3708
1⤵
PID:1636

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/1452-16-0x000000006C95E000-0x000000006C978000-memory.dmp

Filesize
104KB

Download
memory/1452-2-0x000000006C95E000-0x000000006C978000-memory.dmp

Filesize
104KB

Download
memory/1452-0-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/1452-9-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/1452-6-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/1452-5-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/1452-4-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/1452-11-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/1452-1-0x000000006C940000-0x000000006CB25000-memory.dmp

Filesize
1.9MB

Download
memory/3708-12-0x0000000000A40000-0x0000000000ABE000-memory.dmp

Filesize
504KB

Download
memory/3708-14-0x0000000000A40000-0x0000000000ABE000-memory.dmp

Filesize
504KB

Download
memory/3708-13-0x0000000000A40000-0x0000000000ABE000-memory.dmp

Filesize
504KB

Download
memory/3708-34-0x0000000003C00000-0x0000000004000000-memory.dmp

Filesize
4.0MB

Download
memory/3708-7-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

Filesize
4KB

Download
memory/3708-19-0x0000000003C00000-0x0000000004000000-memory.dmp

Filesize
4.0MB

Download
memory/3708-18-0x0000000003C00000-0x0000000004000000-memory.dmp

Filesize
4.0MB

Download
memory/3708-21-0x0000000003C00000-0x0000000004000000-memory.dmp

Filesize
4.0MB

Download
memory/3708-23-0x0000000077940000-0x0000000077B55000-memory.dmp

Filesize
2.1MB

Download
memory/3708-20-0x00007FFE153B0000-0x00007FFE155A5000-memory.dmp

Filesize
2.0MB

Download
memory/3708-17-0x0000000003C00000-0x0000000004000000-memory.dmp

Filesize
4.0MB

Download
memory/4128-27-0x0000000002420000-0x0000000002820000-memory.dmp

Filesize
4.0MB

Download
memory/4128-30-0x0000000077940000-0x0000000077B55000-memory.dmp

Filesize
2.1MB

Download
memory/4128-31-0x0000000002420000-0x0000000002820000-memory.dmp

Filesize
4.0MB

Download
memory/4128-28-0x00007FFE153B0000-0x00007FFE155A5000-memory.dmp

Filesize
2.0MB

Download
memory/4128-32-0x0000000002420000-0x0000000002820000-memory.dmp

Filesize
4.0MB

Download
memory/4128-24-0x00000000005C0000-0x00000000005C9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads