ratty | 7336bbbddf551fc0bc36d820cb702452750e426608b5caf0cc92707c41499be3

General

Target

cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.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

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.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\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.jar	java.exe

Loads dropped DLL 1 IoCs

Processes:

java.exe

pid process

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

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

5080 icacls.exe

pid	process
636	java.exe

pid	process
5080	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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.jar = "C:\\Users\\Admin\\AppData\\Roaming\\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.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-1-5-21-3808065738-1666277613-1125846146-1000_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

2716 REG.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

java.exe

pid process

636 java.exe
636 java.exe
636 java.exe
636 java.exe
636 java.exe
636 java.exe
636 java.exe
636 java.exe

pid	process
2716	REG.exe

pid	process
636	java.exe
636	java.exe
636	java.exe
636	java.exe
636	java.exe
636	java.exe
636	java.exe
636	java.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

java.exe

description	pid	process	target process
PID 636 wrote to memory of 5080	636	java.exe	icacls.exe
PID 636 wrote to memory of 5080	636	java.exe	icacls.exe
PID 636 wrote to memory of 2716	636	java.exe	REG.exe
PID 636 wrote to memory of 2716	636	java.exe	REG.exe
PID 636 wrote to memory of 4592	636	java.exe	attrib.exe
PID 636 wrote to memory of 4592	636	java.exe	attrib.exe
PID 636 wrote to memory of 2608	636	java.exe	attrib.exe
PID 636 wrote to memory of 2608	636	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

2608 attrib.exe
4592 attrib.exe

pid	process
2608	attrib.exe
4592	attrib.exe

C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
java -jar C:\Users\Admin\AppData\Local\Temp\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.jar
1⤵
- Drops startup file
- Loads dropped DLL
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:636

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:5080

C:\Windows\SYSTEM32\REG.exe
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.jar" /d "C:\Users\Admin\AppData\Roaming\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.jar" /f
2⤵
- Adds Run key to start application
- Modifies registry key
PID:2716

C:\Windows\SYSTEM32\attrib.exe
attrib +H C:\Users\Admin\AppData\Roaming\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.jar
2⤵
- Views/modifies file attributes
PID:4592

C:\Windows\SYSTEM32\attrib.exe
attrib +H C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.jar
2⤵
- Views/modifies file attributes
PID:2608

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2116 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:4968

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --instant-process --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=19 --mojo-platform-channel-handle=5560 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:1
1⤵
PID:4404

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=20 --mojo-platform-channel-handle=5508 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:1
1⤵
PID:4352

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --instant-process --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=21 --mojo-platform-channel-handle=4588 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:1
1⤵
PID:4908

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
05cfe4cb32059de4acbc23427907663b

SHA1
0b87b0b2405f128e8a08554c82e416e9c6bee179

SHA256
9c7f989ea3b8147d9369b560c3645e86cefabb405a2feb60bfb4e737b88ae469

SHA512
f9efb14f055578beec784ef14535f273b5a935638c61bc580328238f949ddb178a90f7ff764e201461ff72ab890ebe023d04d211134139c09559005ee0bbb13a

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\cza7vd9VH8C8Ntggy3AkUnUOQmYItcrwzJJwfEFJm_M.jar
Filesize
619KB

MD5
e09c100ccd2443603da3bc66f4564424

SHA1
0e0a646879fb797e5b6e88bd3fc870be5116c2d7

SHA256
7336bbbddf551fc0bc36d820cb702452750e426608b5caf0cc92707c41499be3

SHA512
cce226c3785b741dcd1aed871d691818a04d84ea87c37eeaad835a5091ec0748372c7b96dc8271bb71fd0d3461090153a11519ac4c3cb9305f0f399e4fa55432

Download Submit
memory/636-67-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-12-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-20-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-70-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-31-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-75-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-40-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-42-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download
memory/636-44-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-45-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-50-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-51-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-55-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-57-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-66-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-2-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-138-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-16-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-34-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-78-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-87-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-92-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-94-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-97-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-99-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download
memory/636-100-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-101-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-102-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-108-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-119-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-127-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-132-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download
memory/636-135-0x0000000065E40000-0x0000000065E55000-memory.dmp

Filesize
84KB

Download
memory/636-71-0x000001F87E3C0000-0x000001F87E3C1000-memory.dmp

Filesize
4KB

Download
memory/636-139-0x000001F800000000-0x000001F801000000-memory.dmp

Filesize
16.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads