ratty | 60c90ef07a0e1ebc66e2181c045f809102b923f4e3fe8b95bb55283946bdf41e

General

Target

PTIN_REPORT_PDF.jar
Size

762KB
MD5

9b44489684b9ef4df0b970dffa380633
SHA1

48cd4e922f8d7f322882e0b60c042eadb9129730
SHA256

c90b1e65448a622b814946ba136152c0eb47187e477f4c8b0fd61a234d9b5b8e
SHA512

3ee12621496e441e38ed94fc9421544942307b2b07882481c52d1618031ee6e4f65ea0e71205d02ad635855b9e9eafcccef0a7e1a5ebaa7e17d1c6c511a9c650

Score

10^/10

ratty persistence rat trojan

Malware Config

Signatures

Ratty
Ratty is an open source Java Remote Access Tool.
trojan rat ratty

Ratty Rat Payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ab0e-121.dat	family_ratty

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PTIN_REPORT_PDF.jar	java.exe

Loads dropped DLL 1 IoCs

pid	Process
2384	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run	REG.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\PTIN_REPORT_PDF.jar = "C:\\Users\\Admin\\AppData\\Roaming\\PTIN_REPORT_PDF.jar"	REG.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	java.exe
Key created	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	java.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3912	REG.exe

Suspicious use of SetWindowsHookEx 18 IoCs

pid	Process
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe
2384	java.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 3912	2384	java.exe	69
PID 2384 wrote to memory of 3912	2384	java.exe	69
PID 2384 wrote to memory of 776	2384	java.exe	74
PID 2384 wrote to memory of 776	2384	java.exe	74
PID 2384 wrote to memory of 1344	2384	java.exe	71
PID 2384 wrote to memory of 1344	2384	java.exe	71

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1344	attrib.exe
776	attrib.exe

C:\ProgramData\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\PTIN_REPORT_PDF.jar
1⤵
- Drops startup file
- Loads dropped DLL
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SYSTEM32\REG.exe
  REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "PTIN_REPORT_PDF.jar" /d "C:\Users\Admin\AppData\Roaming\PTIN_REPORT_PDF.jar" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:3912
- C:\Windows\SYSTEM32\attrib.exe
  attrib +H C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PTIN_REPORT_PDF.jar
  2⤵
  - Views/modifies file attributes
  PID:1344
- C:\Windows\SYSTEM32\attrib.exe
  attrib +H C:\Users\Admin\AppData\Roaming\PTIN_REPORT_PDF.jar
  2⤵
  - Views/modifies file attributes
  PID:776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2384-145-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-152-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-117-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-124-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-116-0x0000000002DE0000-0x0000000003050000-memory.dmp

Filesize
2.4MB

Download
memory/2384-131-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-136-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-139-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-115-0x0000000002DE0000-0x0000000003050000-memory.dmp

Filesize
2.4MB

Download
memory/2384-147-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-151-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-193-0x0000000003080000-0x0000000003090000-memory.dmp

Filesize
64KB

Download
memory/2384-154-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-155-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-156-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-157-0x0000000003050000-0x0000000003060000-memory.dmp

Filesize
64KB

Download
memory/2384-159-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-158-0x0000000003060000-0x0000000003070000-memory.dmp

Filesize
64KB

Download
memory/2384-161-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/2384-171-0x0000000003070000-0x0000000003080000-memory.dmp

Filesize
64KB

Download
memory/2384-185-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads