c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f

General

Target

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
Size

108KB
MD5

55fe45dc394191dec046dc1a9b750276
SHA1

0f7f3ef559d906b6bd3cefd96274df994b09f24e
SHA256

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f
SHA512

f2cd751c3b899195a6c69b73391997913dd93f9ffb6b887b7e1ca66e16fc13b374ef3494d16d0036cdb3aa58de4aa7aeee8a6b0bdf42d04f4a4b86adfd261982
SSDEEP

1536:MuacKiB6oQ7Lh5+sXmNt0ttJPXLq0zTrkC:DacmoIeZt0XTzToC

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exeriituu.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	riituu.exe

Executes dropped EXE 1 IoCs

Processes:

riituu.exe

pid process

4864 riituu.exe

pid	process
4864	riituu.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

riituu.exec5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /s"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /i"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /f"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /l"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /g"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /n"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /x"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /j"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /a"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /r"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /c"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /y"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /z"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /b"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /u"	riituu.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /o"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /k"	riituu.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /v"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /t"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /d"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /u"	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /w"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /m"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /p"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /e"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /h"	riituu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riituu = "C:\\Users\\Admin\\riituu.exe /q"	riituu.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exeriituu.exe

pid	process
3364	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
3364	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe
4864	riituu.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exeriituu.exe

pid process

3364 c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
4864 riituu.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe

description	pid	process	target process
PID 3364 wrote to memory of 4864	3364	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe	riituu.exe
PID 3364 wrote to memory of 4864	3364	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe	riituu.exe
PID 3364 wrote to memory of 4864	3364	c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe	riituu.exe

C:\Users\Admin\AppData\Local\Temp\c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe
"C:\Users\Admin\AppData\Local\Temp\c5998e7fad8e16411c4247acf15ed6b4e703de97fc670912377e654c6b48065f.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3364

C:\Users\Admin\riituu.exe
"C:\Users\Admin\riituu.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4864

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\riituu.exe

Filesize
108KB

MD5
65c71498726e60c7c21d1feea4119e36

SHA1
390deac0cfa5dd9fbe8791c3653fbfac310f8e0f

SHA256
c6842e42430eb91a7c8e04484a28dabfbb4ffa4b4ab961206a6087ccb92a30ed

SHA512
822e812c080f87489e45eb8943b856934c6c1697b2a5373ea69d8d402793c9fefe2e82e895b513e79b07d66972846f3848b035c75cd60d3ca75cc44f9b1c8381

Download Submit
C:\Users\Admin\riituu.exe

Filesize
108KB

MD5
65c71498726e60c7c21d1feea4119e36

SHA1
390deac0cfa5dd9fbe8791c3653fbfac310f8e0f

SHA256
c6842e42430eb91a7c8e04484a28dabfbb4ffa4b4ab961206a6087ccb92a30ed

SHA512
822e812c080f87489e45eb8943b856934c6c1697b2a5373ea69d8d402793c9fefe2e82e895b513e79b07d66972846f3848b035c75cd60d3ca75cc44f9b1c8381

Download Submit
memory/4864-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads