ratty | 7336bbbddf551fc0bc36d820cb702452750e426608b5caf0cc92707c41499be3

General

Target

W2-AND-1099-A_PDF.jar
Size

619KB
MD5

e09c100ccd2443603da3bc66f4564424
SHA1

0e0a646879fb797e5b6e88bd3fc870be5116c2d7
SHA256

7336bbbddf551fc0bc36d820cb702452750e426608b5caf0cc92707c41499be3
SHA512

cce226c3785b741dcd1aed871d691818a04d84ea87c37eeaad835a5091ec0748372c7b96dc8271bb71fd0d3461090153a11519ac4c3cb9305f0f399e4fa55432
SSDEEP

12288:pzw60AvjBPrtU7ebS7Qzx9qjF5jURClCn+jprJaA2GvhJv:e60GjBPriib3zT4FJ0ClCQ2LG5B

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

resource	yara_rule
behavioral2/files/0x00080000000231f9-14.dat	family_ratty

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\W2-AND-1099-A_PDF.jar	java.exe

Loads dropped DLL 1 IoCs

pid	Process
1272	java.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3228	icacls.exe

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-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\W2-AND-1099-A_PDF.jar = "C:\\Users\\Admin\\AppData\\Roaming\\W2-AND-1099-A_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-1-5-21-3270530367-132075249-2153716227-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	java.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
1124	REG.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
1272	java.exe
1272	java.exe
1272	java.exe
1272	java.exe
1272	java.exe
1272	java.exe
1272	java.exe
1272	java.exe
1272	java.exe
1272	java.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 3228	1272	java.exe	89
PID 1272 wrote to memory of 3228	1272	java.exe	89
PID 1272 wrote to memory of 1124	1272	java.exe	91
PID 1272 wrote to memory of 1124	1272	java.exe	91
PID 1272 wrote to memory of 2032	1272	java.exe	92
PID 1272 wrote to memory of 2032	1272	java.exe	92
PID 1272 wrote to memory of 4772	1272	java.exe	94
PID 1272 wrote to memory of 4772	1272	java.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2032	attrib.exe
4772	attrib.exe

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\W2-AND-1099-A_PDF.jar
1⤵
- Drops startup file
- Loads dropped DLL
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1272
- 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:3228
- C:\Windows\SYSTEM32\REG.exe
  REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "W2-AND-1099-A_PDF.jar" /d "C:\Users\Admin\AppData\Roaming\W2-AND-1099-A_PDF.jar" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:1124
- C:\Windows\SYSTEM32\attrib.exe
  attrib +H C:\Users\Admin\AppData\Roaming\W2-AND-1099-A_PDF.jar
  2⤵
  - Views/modifies file attributes
  PID:2032
- C:\Windows\SYSTEM32\attrib.exe
  attrib +H C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\W2-AND-1099-A_PDF.jar
  2⤵
  - Views/modifies file attributes
  PID:4772

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

File and Directory Permissions Modification

1

T1222

Hide Artifacts

1

T1564

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:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

Filesize
46B

MD5
467386af76775c89e829fbf74f6cc990

SHA1
9c1ab4268c2033945385f49646acabf6df88b8f1

SHA256
14e9032e2a81a791eb717ead35edc0126d647b56bbc85fa048d3a650d3b049fb

SHA512
4778d025aaf5ed71a65f49e9fcb9411924926af098f01577c4a517a8aa61290c2445e2a90227353269d5ad140d8b2418c68d3f1e3c388efbd3d53a56f8db39d3

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\Local\Temp\imageio2799697056382735159.tmp

Filesize
5KB

MD5
239ead1192fbb5ab007a5398191e0d9f

SHA1
75766566ab75e91224476377448c0cbd4ca4e403

SHA256
697154e6d42cb83255603427c66f50c3ef9d810cd71179f2d4c65278f35d50a8

SHA512
3c90b66ca840454c88cfd31d5238da9033ed86873a53ffe3fabe14eee5d23e7016d41a0ad8108a577e7d1b43f8ccffaa1ed656bff220f25b7d198423d12712b4

Download Submit
C:\Users\Admin\AppData\Roaming\W2-AND-1099-A_PDF.jar

Filesize
619KB

MD5
e09c100ccd2443603da3bc66f4564424

SHA1
0e0a646879fb797e5b6e88bd3fc870be5116c2d7

SHA256
7336bbbddf551fc0bc36d820cb702452750e426608b5caf0cc92707c41499be3

SHA512
cce226c3785b741dcd1aed871d691818a04d84ea87c37eeaad835a5091ec0748372c7b96dc8271bb71fd0d3461090153a11519ac4c3cb9305f0f399e4fa55432

Download Submit
memory/1272-69-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-74-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-40-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-42-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-50-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download
memory/1272-51-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-54-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-55-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-57-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-56-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download
memory/1272-60-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-68-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-4-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-72-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-73-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-36-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-75-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-76-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-81-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download
memory/1272-85-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-87-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-88-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-93-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-95-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-104-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-113-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-18-0x000001C14B8D0000-0x000001C14B8D1000-memory.dmp

Filesize
4KB

Download
memory/1272-122-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-123-0x000001C14D1D0000-0x000001C14E1D0000-memory.dmp

Filesize
16.0MB

Download
memory/1272-128-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads