ratty | 5ad2ab6cd7173a6988a750931c30d6f2c59d4458d55edef5eeda98421fc5193e

General

Target

Voice-message_MP3.jar
Size

1.6MB
MD5

191e73e48b19a14a907a1d3eb0daa6b3
SHA1

21bbbd32a3169d60fb807f2d5b08af4d1d48b71c
SHA256

9c336166648a6cf0a84daaf76d803245fb3103a48d7d870815ade3046d39a36b
SHA512

6e22fda5681b1e4b6d58ee406233eae0f1b7008ebb83cbef4f588704167d4a415da806ece8b3ccc4ad0fc6608ead2c1b7a418f25640f289073ab98971ec31b1f
SSDEEP

24576:pEQjxOpbjjV6eyQOU46vUu0pbFAkxw7PJe8j/pP/mIDors6M/7ClCiDGTcJy:O2xEjBxXOUDvibdxw7PJZN2IDwMDwKT5

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

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\Voice-message_MP3.jar	family_ratty

Drops startup file 1 IoCs

Processes:

java.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Voice-message_MP3.jar java.exe
Loads dropped DLL 1 IoCs

Processes:

java.exe

pid process

4460 java.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Voice-message_MP3.jar	java.exe

pid	process
4460	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

REG.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run	REG.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Voice-message_MP3.jar = "C:\\Users\\Admin\\AppData\\Roaming\\Voice-message_MP3.jar"	REG.exe

Modifies registry class 2 IoCs

Processes:

java.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	java.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	java.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1460 REG.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

java.exe

pid process

4460 java.exe
4460 java.exe
4460 java.exe

pid	process
1460	REG.exe

pid	process
4460	java.exe
4460	java.exe
4460	java.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

java.exe

description	pid	process	target process
PID 4460 wrote to memory of 1460	4460	java.exe	REG.exe
PID 4460 wrote to memory of 1460	4460	java.exe	REG.exe
PID 4460 wrote to memory of 1560	4460	java.exe	attrib.exe
PID 4460 wrote to memory of 1560	4460	java.exe	attrib.exe
PID 4460 wrote to memory of 2424	4460	java.exe	attrib.exe
PID 4460 wrote to memory of 2424	4460	java.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1560 attrib.exe
2424 attrib.exe

pid	process
1560	attrib.exe
2424	attrib.exe

C:\ProgramData\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\Voice-message_MP3.jar
1⤵
- Drops startup file
- Loads dropped DLL
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4460
- C:\Windows\SYSTEM32\REG.exe
  REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Voice-message_MP3.jar" /d "C:\Users\Admin\AppData\Roaming\Voice-message_MP3.jar" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:1460
- C:\Windows\SYSTEM32\attrib.exe
  attrib +H C:\Users\Admin\AppData\Roaming\Voice-message_MP3.jar
  2⤵
  - Views/modifies file attributes
  PID:1560
- C:\Windows\SYSTEM32\attrib.exe
  attrib +H C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Voice-message_MP3.jar
  2⤵
  - Views/modifies file attributes
  PID:2424

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\JNativeHook-7432773EB4D09DC286D43FCC77DDB0E1E3BCE2B4.dll

Filesize
83KB

MD5
55f4de7f270663b3dc712b8c9eed422a

SHA1
7432773eb4d09dc286d43fcc77ddb0e1e3bce2b4

SHA256
47c2871dff8948de40424df497962ea6167c56bd4d487dd2e660aa2837485e25

SHA512
9da5efb0236b3bb4ec72d07bfd70a9e3f373df95d97c825513babd43d2b91c8669e28f3464173e789dad092ea48fc8d32a9d11a6d5c8d9beeabd33860ce6a996

Download Submit
C:\Users\Admin\AppData\Roaming\Voice-message_MP3.jar

Filesize
1.6MB

MD5
191e73e48b19a14a907a1d3eb0daa6b3

SHA1
21bbbd32a3169d60fb807f2d5b08af4d1d48b71c

SHA256
9c336166648a6cf0a84daaf76d803245fb3103a48d7d870815ade3046d39a36b

SHA512
6e22fda5681b1e4b6d58ee406233eae0f1b7008ebb83cbef4f588704167d4a415da806ece8b3ccc4ad0fc6608ead2c1b7a418f25640f289073ab98971ec31b1f

Download Submit
memory/1460-148-0x0000000000000000-mapping.dmp

Download
memory/1560-149-0x0000000000000000-mapping.dmp

Download
memory/2424-150-0x0000000000000000-mapping.dmp

Download
memory/4460-151-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-162-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-164-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-136-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-171-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-178-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-183-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-184-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-187-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-189-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-190-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-191-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download
memory/4460-192-0x0000000002670000-0x0000000003670000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads