rhadamanthys | 4b33219c5cadb4d741044874f6f0184d45f43891d28ad5b489716d4da21310fd

General

Target

SensApi.dll
Size

1.9MB
MD5

7b5b5391950e247ea71476dced1a4817
SHA1

650ab434b877a4dfaab4984fb60ac8906e090e22
SHA256

4560efffe292602f48a57073a98fcf7424549bbfab76e1bf646330151717d669
SHA512

500fecb16a8441e8a061c6fff5552bc69497e74f8ecac54b8b439ea3aa6bab59bab42dd9ffab813ec197859d3feca6488a1f163d88ada813685015e195a3dc15
SSDEEP

49152:OLbVkg26M9R/2LU5WNDPbu3UgEZLOkALP7fi6HW2C1:OPB1M9R/2LU54DPbuWkkkrHW2C1

Score

10^/10

rhadamanthys discovery persistence stealer

Malware Config

Extracted

Family

rhadamanthys

C2

https://95.169.204.214:9855/8255b5411e443eeb9780e/gnkkm53f.k5sne

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 3868 created 2560 3868 rundll32.exe svchost.exe

description	pid	process	target process
PID 3868 created 2560	3868	rundll32.exe	svchost.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-1-5-21-940901362-3608833189-1915618603-1000\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

2140 rundll32.exe
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

4568 3868 WerFault.exe rundll32.exe
3636 3868 WerFault.exe rundll32.exe

pid	process
2140	rundll32.exe

pid	pid_target	process	target process
4568	3868	WerFault.exe	rundll32.exe
3636	3868	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.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

3868 rundll32.exe
3868 rundll32.exe
1452 openwith.exe
1452 openwith.exe
1452 openwith.exe
1452 openwith.exe

pid	process
3868	rundll32.exe
3868	rundll32.exe
1452	openwith.exe
1452	openwith.exe
1452	openwith.exe
1452	openwith.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

rundll32.exerundll32.execmd.exerundll32.exe

description	pid	process	target process
PID 396 wrote to memory of 2140	396	rundll32.exe	rundll32.exe
PID 396 wrote to memory of 2140	396	rundll32.exe	rundll32.exe
PID 396 wrote to memory of 2140	396	rundll32.exe	rundll32.exe
PID 2140 wrote to memory of 3868	2140	rundll32.exe	rundll32.exe
PID 2140 wrote to memory of 3868	2140	rundll32.exe	rundll32.exe
PID 2140 wrote to memory of 3868	2140	rundll32.exe	rundll32.exe
PID 2140 wrote to memory of 3868	2140	rundll32.exe	rundll32.exe
PID 2140 wrote to memory of 3868	2140	rundll32.exe	rundll32.exe
PID 2140 wrote to memory of 3868	2140	rundll32.exe	rundll32.exe
PID 2140 wrote to memory of 3104	2140	rundll32.exe	cmd.exe
PID 2140 wrote to memory of 3104	2140	rundll32.exe	cmd.exe
PID 2140 wrote to memory of 3104	2140	rundll32.exe	cmd.exe
PID 3104 wrote to memory of 4468	3104	cmd.exe	reg.exe
PID 3104 wrote to memory of 4468	3104	cmd.exe	reg.exe
PID 3104 wrote to memory of 4468	3104	cmd.exe	reg.exe
PID 3868 wrote to memory of 1452	3868	rundll32.exe	openwith.exe
PID 3868 wrote to memory of 1452	3868	rundll32.exe	openwith.exe
PID 3868 wrote to memory of 1452	3868	rundll32.exe	openwith.exe
PID 3868 wrote to memory of 1452	3868	rundll32.exe	openwith.exe
PID 3868 wrote to memory of 1452	3868	rundll32.exe	openwith.exe

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2560
- C:\Windows\SysWOW64\openwith.exe
  "C:\Windows\system32\openwith.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1452

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SensApi.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\SensApi.dll,#1
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2140
- - 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:3868
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 616
      4⤵
      Program crash
      PID:4568
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 596
      4⤵
      Program crash
      PID:3636
- - 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:3104
  - - 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:4468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3868 -ip 3868
1⤵
PID:2208

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3868 -ip 3868
1⤵
PID:3580

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/1452-23-0x0000000002470000-0x0000000002870000-memory.dmp

Filesize
4.0MB

Download
memory/1452-26-0x0000000076830000-0x0000000076A45000-memory.dmp

Filesize
2.1MB

Download
memory/1452-27-0x0000000002470000-0x0000000002870000-memory.dmp

Filesize
4.0MB

Download
memory/1452-20-0x00000000005E0000-0x00000000005E9000-memory.dmp

Filesize
36KB

Download
memory/1452-24-0x00007FFEE50B0000-0x00007FFEE52A5000-memory.dmp

Filesize
2.0MB

Download
memory/1452-28-0x0000000002470000-0x0000000002870000-memory.dmp

Filesize
4.0MB

Download
memory/2140-7-0x0000000061510000-0x00000000616F9000-memory.dmp

Filesize
1.9MB

Download
memory/2140-1-0x0000000061517000-0x0000000061531000-memory.dmp

Filesize
104KB

Download
memory/2140-3-0x0000000061510000-0x00000000616F9000-memory.dmp

Filesize
1.9MB

Download
memory/2140-8-0x0000000061510000-0x00000000616F9000-memory.dmp

Filesize
1.9MB

Download
memory/2140-12-0x0000000061517000-0x0000000061531000-memory.dmp

Filesize
104KB

Download
memory/2140-2-0x0000000061510000-0x00000000616F9000-memory.dmp

Filesize
1.9MB

Download
memory/2140-0-0x0000000061510000-0x00000000616F9000-memory.dmp

Filesize
1.9MB

Download
memory/3868-9-0x0000000001230000-0x00000000012AE000-memory.dmp

Filesize
504KB

Download
memory/3868-16-0x00007FFEE50B0000-0x00007FFEE52A5000-memory.dmp

Filesize
2.0MB

Download
memory/3868-17-0x0000000004070000-0x0000000004470000-memory.dmp

Filesize
4.0MB

Download
memory/3868-19-0x0000000076830000-0x0000000076A45000-memory.dmp

Filesize
2.1MB

Download
memory/3868-14-0x0000000004070000-0x0000000004470000-memory.dmp

Filesize
4.0MB

Download
memory/3868-15-0x0000000004070000-0x0000000004470000-memory.dmp

Filesize
4.0MB

Download
memory/3868-13-0x0000000004070000-0x0000000004470000-memory.dmp

Filesize
4.0MB

Download
memory/3868-11-0x0000000001230000-0x00000000012AE000-memory.dmp

Filesize
504KB

Download
memory/3868-4-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/3868-10-0x0000000001230000-0x00000000012AE000-memory.dmp

Filesize
504KB

Download
memory/3868-30-0x0000000004070000-0x0000000004470000-memory.dmp

Filesize
4.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads