rhadamanthys | 3b91bef8c1d647cf36aa666b25cc719303f175fe7eb4d6bd52946a96be447d89

Analysis

max time kernel
85s
max time network
88s
platform
windows11-21h2_x64
resource
win11-20240214-en
resource tags

arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system
submitted
07/04/2024, 06:03

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General

Target
d3dx9_43.dll
Size 220.0MB
Sample240407-gr3fqafb42
SHA256 3b91bef8c1d647cf36aa666b25cc719303f175fe7eb4d6bd52946a96be447d89
MD5 5e32f5e1cbfb84809d22993d095e4901
SHA1 816c6c3c9f7a4ea07027fbf3ced913e0923a4ceb
SHA512 516de86e08181f8c7d74c7dac4529e1d88b976016ee7f71d9263c97a4a654f2e3b61f4c676f9898676f253457549a4d871d6cddc07f1469a7fb7f911dd412c1c
SSDEEP 49152:Z566l2u45ONYFrz31Cv3D29kd6kj2UQiI:Z566l2u45ONYFrkvz29kdJj0
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

rhadamanthys persistence stealer

Malware Config

Signatures

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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 728 created 2852	728	rundll32.exe	49

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2567984660-2719943099-2683635618-1000\Software\Microsoft\Windows\CurrentVersion\Run\*Chrome = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\VIVA_01.dll,EntryPoint"	reg.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1232	rundll32.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5036	728	WerFault.exe	78
344	728	WerFault.exe	78

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
728	rundll32.exe
728	rundll32.exe
3960	dialer.exe
3960	dialer.exe
3960	dialer.exe
3960	dialer.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 1232	3940	rundll32.exe	76
PID 3940 wrote to memory of 1232	3940	rundll32.exe	76
PID 3940 wrote to memory of 1232	3940	rundll32.exe	76
PID 1232 wrote to memory of 2308	1232	rundll32.exe	77
PID 1232 wrote to memory of 2308	1232	rundll32.exe	77
PID 1232 wrote to memory of 2308	1232	rundll32.exe	77
PID 1232 wrote to memory of 728	1232	rundll32.exe	78
PID 1232 wrote to memory of 728	1232	rundll32.exe	78
PID 1232 wrote to memory of 728	1232	rundll32.exe	78
PID 1232 wrote to memory of 728	1232	rundll32.exe	78
PID 1232 wrote to memory of 728	1232	rundll32.exe	78
PID 1232 wrote to memory of 728	1232	rundll32.exe	78
PID 2308 wrote to memory of 660	2308	cmd.exe	80
PID 2308 wrote to memory of 660	2308	cmd.exe	80
PID 2308 wrote to memory of 660	2308	cmd.exe	80
PID 728 wrote to memory of 3960	728	rundll32.exe	81
PID 728 wrote to memory of 3960	728	rundll32.exe	81
PID 728 wrote to memory of 3960	728	rundll32.exe	81
PID 728 wrote to memory of 3960	728	rundll32.exe	81
PID 728 wrote to memory of 3960	728	rundll32.exe	81

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2852
- C:\Windows\SysWOW64\dialer.exe
  "C:\Windows\system32\dialer.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3960

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3dx9_43.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3dx9_43.dll,#1
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of WriteProcessMemory
  PID:1232
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*Chrome" /t REG_SZ /d "rundll32.exe C:\Users\Admin\AppData\Roaming\VIVA_01.dll",EntryPoint /f & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2308
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*Chrome" /t REG_SZ /d "rundll32.exe C:\Users\Admin\AppData\Roaming\VIVA_01.dll",EntryPoint /f
      4⤵
      Adds Run key to start application
      PID:660
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - Suspicious use of NtCreateUserProcessOtherParentProcess
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:728
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 516
      4⤵
      Program crash
      PID:5036
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 728 -s 512
      4⤵
      Program crash
      PID:344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 728 -ip 728
1⤵
PID:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 728 -ip 728
1⤵
PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/728-11-0x00007FFB420A0000-0x00007FFB422A9000-memory.dmp

Download

memory/728-9-0x0000000003380000-0x0000000003780000-memory.dmp

Download

memory/728-25-0x0000000003380000-0x0000000003780000-memory.dmp

Download

memory/728-3-0x00000000001E0000-0x00000000001E1000-memory.dmp

Download

memory/728-5-0x0000000000400000-0x000000000046D000-memory.dmp

Download

memory/728-6-0x0000000000400000-0x000000000046D000-memory.dmp

Download

memory/728-7-0x0000000000400000-0x000000000046D000-memory.dmp

Download

memory/728-14-0x00000000761F0000-0x0000000076442000-memory.dmp

Download

memory/728-13-0x0000000003380000-0x0000000003780000-memory.dmp

Download

memory/728-10-0x0000000003380000-0x0000000003780000-memory.dmp

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memory/728-8-0x0000000003380000-0x0000000003780000-memory.dmp

Download

memory/1232-0-0x0000000010000000-0x0000000010296000-memory.dmp

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memory/1232-1-0x0000000010000000-0x0000000010296000-memory.dmp

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memory/1232-2-0x0000000010000000-0x0000000010296000-memory.dmp

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memory/3960-15-0x00000000010C0000-0x00000000010C9000-memory.dmp

Download

memory/3960-17-0x0000000002E20000-0x0000000003220000-memory.dmp

Download

memory/3960-18-0x0000000002E20000-0x0000000003220000-memory.dmp

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memory/3960-19-0x00007FFB420A0000-0x00007FFB422A9000-memory.dmp

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memory/3960-20-0x0000000002E20000-0x0000000003220000-memory.dmp

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memory/3960-22-0x00007FFB420A0000-0x00007FFB422A9000-memory.dmp

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memory/3960-23-0x00000000761F0000-0x0000000076442000-memory.dmp

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memory/3960-24-0x0000000002E20000-0x0000000003220000-memory.dmp

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memory/3960-26-0x00007FFB420A0000-0x00007FFB422A9000-memory.dmp

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