ratty | 2870e91faf799f431115adfd00bc8a7573f197c29b57d3f7e3f6f85eee28928b

General

Target

2502c807c3327021f622fd468781f85d.jar
Size

332KB
MD5

2502c807c3327021f622fd468781f85d
SHA1

47d237b21f15e64bd56f0eff1fe3df549f355ae2
SHA256

2870e91faf799f431115adfd00bc8a7573f197c29b57d3f7e3f6f85eee28928b
SHA512

1a097a75053cc5bb0cc1896fdc0a7713b97048a909d0baf10f496334e5dcce6a0cbd3a65d1992039125eaa4944ab40c8587ac91c4924824452ba0a95dc394c14
SSDEEP

6144:JZjgS007NNMX/+DoklCAFNWClCA+jp02GmaZ/ZJSEPavLFjt+Wz:JZNNNzbCClCA+jp02GmWhJnav5jUI

Score

10^/10

ratty discovery 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\2502c807c3327021f622fd468781f85d.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\2502c807c3327021f622fd468781f85d.jar	java.exe

Loads dropped DLL 1 IoCs

Processes:

java.exe

pid process

4804 java.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4300 icacls.exe

pid	process
4804	java.exe

pid	process
4300	icacls.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-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2502c807c3327021f622fd468781f85d.jar = "C:\\Users\\Admin\\AppData\\Roaming\\2502c807c3327021f622fd468781f85d.jar"	REG.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

3616 REG.exe
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

java.exe

pid process

4804 java.exe
4804 java.exe
4804 java.exe
4804 java.exe
4804 java.exe
4804 java.exe
4804 java.exe

pid	process
3616	REG.exe

pid	process
4804	java.exe
4804	java.exe
4804	java.exe
4804	java.exe
4804	java.exe
4804	java.exe
4804	java.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

java.exe

description	pid	process	target process
PID 4804 wrote to memory of 4300	4804	java.exe	icacls.exe
PID 4804 wrote to memory of 4300	4804	java.exe	icacls.exe
PID 4804 wrote to memory of 3616	4804	java.exe	REG.exe
PID 4804 wrote to memory of 3616	4804	java.exe	REG.exe
PID 4804 wrote to memory of 3532	4804	java.exe	attrib.exe
PID 4804 wrote to memory of 3532	4804	java.exe	attrib.exe
PID 4804 wrote to memory of 2512	4804	java.exe	attrib.exe
PID 4804 wrote to memory of 2512	4804	java.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

3532 attrib.exe
2512 attrib.exe

pid	process
3532	attrib.exe
2512	attrib.exe

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\2502c807c3327021f622fd468781f85d.jar
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4804

C:\Windows\system32\icacls.exe
C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
2⤵
- Modifies file permissions
PID:4300

C:\Windows\SYSTEM32\REG.exe
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "2502c807c3327021f622fd468781f85d.jar" /d "C:\Users\Admin\AppData\Roaming\2502c807c3327021f622fd468781f85d.jar" /f
2⤵
- Adds Run key to start application
- Modifies registry key
PID:3616

C:\Windows\SYSTEM32\attrib.exe
attrib +H C:\Users\Admin\AppData\Roaming\2502c807c3327021f622fd468781f85d.jar
2⤵
- Views/modifies file attributes
PID:3532

C:\Windows\SYSTEM32\attrib.exe
attrib +H C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\2502c807c3327021f622fd468781f85d.jar
2⤵
- Views/modifies file attributes
PID:2512

Network

MITRE ATT&CK Matrix ATT&CK v13

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

File and Directory Permissions Modification

1

T1222

Modify Registry

2

T1112

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
Filesize
46B

MD5
2b404a0c84d0204b5865c3ed372dcf30

SHA1
90df64e0ffa47dc3eb8e4f8d7910bab5003f17cb

SHA256
e67705d7187c989a2579377a48860cc245c4e38f1186df59990f4ecc210cfbaa

SHA512
b126bdd27063ae52f5ded82ce673c11c2752a4713816348fcc2b0df524cf77ec5c7d5715c5a83a4c4b8c75bda8f46b8a4a0f1d57ef7c2ce3b6967c76267629e2

Download Submit
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\2502c807c3327021f622fd468781f85d.jar
Filesize
332KB

MD5
2502c807c3327021f622fd468781f85d

SHA1
47d237b21f15e64bd56f0eff1fe3df549f355ae2

SHA256
2870e91faf799f431115adfd00bc8a7573f197c29b57d3f7e3f6f85eee28928b

SHA512
1a097a75053cc5bb0cc1896fdc0a7713b97048a909d0baf10f496334e5dcce6a0cbd3a65d1992039125eaa4944ab40c8587ac91c4924824452ba0a95dc394c14

Download Submit
memory/4804-5-0x00000273CB300000-0x00000273CC300000-memory.dmp

Filesize
16.0MB

Download
memory/4804-18-0x00000273CB2E0000-0x00000273CB2E1000-memory.dmp

Filesize
4KB

Download
memory/4804-27-0x00000273CB2E0000-0x00000273CB2E1000-memory.dmp

Filesize
4KB

Download
memory/4804-29-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download
memory/4804-31-0x00000273CB300000-0x00000273CC300000-memory.dmp

Filesize
16.0MB

Download
memory/4804-34-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download
memory/4804-41-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads