rhadamanthys | 766d45108b453a7efb1c63a80bdfcd2784bbfb730fe5c0971ab68ebf3e345109

General

Target

ff5bef5bc6a37af813010fbf65b9f470N.dll
Size

1.5MB
MD5

ff5bef5bc6a37af813010fbf65b9f470
SHA1

92a81390c6fc694b48364afcc8a9898e3600bc16
SHA256

766d45108b453a7efb1c63a80bdfcd2784bbfb730fe5c0971ab68ebf3e345109
SHA512

79991d76123f7f3f458c905e01e8fbb7cc621892b389fe97d7df0b7d804c16626404479e4422cebd7fa8fd0e25b7784884c38250e304327da643613620b4e064
SSDEEP

24576:/8DpJCGFXLxo15Xyfsf+fee5p184Pr1HLOkVyLP7E8Lr19Ei+sh/7mFJ3ckEJ8:1TWfee5kerZLOkALP7fiiHhDisW

Score

10^/10

rhadamanthys discovery persistence stealer

Malware Config

Extracted

Family

rhadamanthys

C2

https://198.135.48.191:3090/7cc6bd8a9e6893408/9mv6h45b.p009i

Signatures

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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 3648 created 2956	3648	rundll32.exe	50

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-1-5-21-2718105630-359604950-2820636825-1000\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
2880	rundll32.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	Process	procid_target
4260	3648	WerFault.exe	89
3488	3648	WerFault.exe	89

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.execmd.exereg.exeopenwith.exerundll32.exe

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

rundll32.exeopenwith.exe

pid	Process
3648	rundll32.exe
3648	rundll32.exe
4576	openwith.exe
4576	openwith.exe
4576	openwith.exe
4576	openwith.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

rundll32.exerundll32.execmd.exerundll32.exe

description	pid	Process	procid_target
PID 3120 wrote to memory of 2880	3120	rundll32.exe	85
PID 3120 wrote to memory of 2880	3120	rundll32.exe	85
PID 3120 wrote to memory of 2880	3120	rundll32.exe	85
PID 2880 wrote to memory of 3648	2880	rundll32.exe	89
PID 2880 wrote to memory of 3648	2880	rundll32.exe	89
PID 2880 wrote to memory of 3648	2880	rundll32.exe	89
PID 2880 wrote to memory of 3648	2880	rundll32.exe	89
PID 2880 wrote to memory of 3648	2880	rundll32.exe	89
PID 2880 wrote to memory of 3648	2880	rundll32.exe	89
PID 2880 wrote to memory of 3008	2880	rundll32.exe	90
PID 2880 wrote to memory of 3008	2880	rundll32.exe	90
PID 2880 wrote to memory of 3008	2880	rundll32.exe	90
PID 3008 wrote to memory of 4612	3008	cmd.exe	92
PID 3008 wrote to memory of 4612	3008	cmd.exe	92
PID 3008 wrote to memory of 4612	3008	cmd.exe	92
PID 3648 wrote to memory of 4576	3648	rundll32.exe	93
PID 3648 wrote to memory of 4576	3648	rundll32.exe	93
PID 3648 wrote to memory of 4576	3648	rundll32.exe	93
PID 3648 wrote to memory of 4576	3648	rundll32.exe	93
PID 3648 wrote to memory of 4576	3648	rundll32.exe	93

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2956
- C:\Windows\SysWOW64\openwith.exe
  "C:\Windows\system32\openwith.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4576

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff5bef5bc6a37af813010fbf65b9f470N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3120
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff5bef5bc6a37af813010fbf65b9f470N.dll,#1
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2880
- - 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:3648
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 592
      4⤵
      Program crash
      PID:4260
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 588
      4⤵
      Program crash
      PID:3488
- - 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:3008
  - - 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:4612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3648 -ip 3648
1⤵
PID:3140

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3648 -ip 3648
1⤵
PID:4396

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/2880-4-0x0000000010000000-0x000000001018E000-memory.dmp

Filesize
1.6MB

Download
memory/2880-0-0x0000000010000000-0x000000001018E000-memory.dmp

Filesize
1.6MB

Download
memory/2880-3-0x0000000010000000-0x000000001018E000-memory.dmp

Filesize
1.6MB

Download
memory/2880-9-0x0000000010000000-0x000000001018E000-memory.dmp

Filesize
1.6MB

Download
memory/2880-7-0x0000000010000000-0x000000001018E000-memory.dmp

Filesize
1.6MB

Download
memory/2880-1-0x0000000010014000-0x000000001002E000-memory.dmp

Filesize
104KB

Download
memory/2880-14-0x0000000010014000-0x000000001002E000-memory.dmp

Filesize
104KB

Download
memory/2880-2-0x0000000010000000-0x000000001018E000-memory.dmp

Filesize
1.6MB

Download
memory/3648-15-0x0000000003B20000-0x0000000003F20000-memory.dmp

Filesize
4.0MB

Download
memory/3648-21-0x0000000076AD0000-0x0000000076CE5000-memory.dmp

Filesize
2.1MB

Download
memory/3648-11-0x0000000000E00000-0x0000000000E7E000-memory.dmp

Filesize
504KB

Download
memory/3648-12-0x0000000000E00000-0x0000000000E7E000-memory.dmp

Filesize
504KB

Download
memory/3648-10-0x0000000000E00000-0x0000000000E7E000-memory.dmp

Filesize
504KB

Download
memory/3648-16-0x0000000003B20000-0x0000000003F20000-memory.dmp

Filesize
4.0MB

Download
memory/3648-17-0x0000000003B20000-0x0000000003F20000-memory.dmp

Filesize
4.0MB

Download
memory/3648-18-0x00007FFAE4F90000-0x00007FFAE5185000-memory.dmp

Filesize
2.0MB

Download
memory/3648-19-0x0000000003B20000-0x0000000003F20000-memory.dmp

Filesize
4.0MB

Download
memory/3648-5-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

Filesize
4KB

Download
memory/3648-31-0x0000000003B20000-0x0000000003F20000-memory.dmp

Filesize
4.0MB

Download
memory/4576-25-0x00000000022E0000-0x00000000026E0000-memory.dmp

Filesize
4.0MB

Download
memory/4576-24-0x00000000022E0000-0x00000000026E0000-memory.dmp

Filesize
4.0MB

Download
memory/4576-29-0x00000000022E0000-0x00000000026E0000-memory.dmp

Filesize
4.0MB

Download
memory/4576-26-0x00007FFAE4F90000-0x00007FFAE5185000-memory.dmp

Filesize
2.0MB

Download
memory/4576-28-0x0000000076AD0000-0x0000000076CE5000-memory.dmp

Filesize
2.1MB

Download
memory/4576-30-0x00000000022E0000-0x00000000026E0000-memory.dmp

Filesize
4.0MB

Download
memory/4576-22-0x00000000003A0000-0x00000000003A9000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads