42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702

General

Target

42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe
Size

136KB
MD5

3430ff52775bed3ea223b54664f870a1
SHA1

0f123f8438fe702576e07d2dbc7c0d4de571cc22
SHA256

42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702
SHA512

aa750b3b6dc72ccb71fd14ceec0d5b2d52750abf694acb00dede925371b3b0000676cd23eafd65fed7cfed516b94e29f1fcc1fa0e86fc28c6713ff2be2444d71
SSDEEP

3072:yqsMMtnsXGsLd0gePcPuiPfDZS+biFO8bkwLI0zKdmGa44nK:yjn8XuPcPnfEXkZ0zKd934n

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:

42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.execlroil.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"	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	clroil.exe

Executes dropped EXE 1 IoCs

Processes:

clroil.exe

pid process

4192 clroil.exe

pid	process
4192	clroil.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:

42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe

Adds Run key to start application 2 TTPs 53 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

clroil.exe42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /x"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /F"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /V"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /E"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /s"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /y"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /I"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /A"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /M"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /e"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /i"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /U"	clroil.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /L"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /q"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /b"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /Q"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /d"	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /G"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /W"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /Z"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /C"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /k"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /a"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /u"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /c"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /K"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /g"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /P"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /j"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /O"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /o"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /S"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /p"	clroil.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /T"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /r"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /t"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /m"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /d"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /D"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /R"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /B"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /N"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /H"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /l"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /J"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /X"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /f"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /z"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /n"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /Y"	clroil.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\clroil = "C:\\Users\\Admin\\clroil.exe /v"	clroil.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:

42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.execlroil.exe

pid	process
4760	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe
4760	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe
4192	clroil.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.execlroil.exe

pid process

4760 42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe
4192 clroil.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe

description	pid	process	target process
PID 4760 wrote to memory of 4192	4760	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe	clroil.exe
PID 4760 wrote to memory of 4192	4760	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe	clroil.exe
PID 4760 wrote to memory of 4192	4760	42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe	clroil.exe

C:\Users\Admin\AppData\Local\Temp\42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.exe
"C:\Users\Admin\AppData\Local\Temp\42079fc4b659e7ed219cf000b2d3f63073c8eec577436c8437b246567eb96702.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:4760

C:\Users\Admin\clroil.exe
"C:\Users\Admin\clroil.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:4192

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\clroil.exe
Filesize
136KB

MD5
962ab222b3a14f18b87ad4ff673f754f

SHA1
c4ef465db40080a9254a338114b86bc9a9fceda5

SHA256
b4e04f2c0b1f7f5ac1fabfe5d5214898cdcd8a5a1b38b5b5b79c075f4b690f1a

SHA512
89dbc2c4cdc5689d1565adacc12890e691e8402760b47d0715b636246de81d70e1f50bcb148c625c611411b63c28d68fcc98f077fc7212915ce5f0fb3e4ca9c4

Download Submit
C:\Users\Admin\clroil.exe
Filesize
136KB

MD5
962ab222b3a14f18b87ad4ff673f754f

SHA1
c4ef465db40080a9254a338114b86bc9a9fceda5

SHA256
b4e04f2c0b1f7f5ac1fabfe5d5214898cdcd8a5a1b38b5b5b79c075f4b690f1a

SHA512
89dbc2c4cdc5689d1565adacc12890e691e8402760b47d0715b636246de81d70e1f50bcb148c625c611411b63c28d68fcc98f077fc7212915ce5f0fb3e4ca9c4

Download Submit
memory/4192-135-0x0000000000000000-mapping.dmp

Download
memory/4192-140-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4192-142-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4760-132-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/4760-141-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads