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Analysis
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max time kernel
151s -
max time network
44s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
19/10/2022, 14:06
Static task
static1
Behavioral task
behavioral1
Sample
0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe
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Size
384KB
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MD5
90d855911da33cbe8360186919a524e0
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SHA1
8993977bf29390a7281d00313114d30cef3c8b54
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SHA256
0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db
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SHA512
7588996c5fdc330dd20ccc2eb8669d75d13a1879ab7883afee5fd2695115e49c31a1685355bf0a43232acc0e5ee381e82c0ce916ba800952acff9cae8f3fc226
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SSDEEP
6144:0stj9I6AG6ud4a2TURdaDZ23w8QEoKHjWZLKBPvHIWMP0:iVakZ2A81vWpaPve0
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" jfnom.exe -
Executes dropped EXE 1 IoCs
pid Process 1160 jfnom.exe -
Loads dropped DLL 2 IoCs
pid Process 1424 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe 1424 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /h" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /u" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /s" jfnom.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /o" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /z" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /l" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /x" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /e" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /c" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /a" jfnom.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /f" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /n" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /k" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /p" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /b" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /v" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /m" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /r" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /i" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /t" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /g" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /d" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /h" 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /j" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /y" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /w" jfnom.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jfnom = "C:\\Users\\Admin\\jfnom.exe /q" jfnom.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1424 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe 1160 jfnom.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1424 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe 1160 jfnom.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1424 wrote to memory of 1160 1424 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe 26 PID 1424 wrote to memory of 1160 1424 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe 26 PID 1424 wrote to memory of 1160 1424 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe 26 PID 1424 wrote to memory of 1160 1424 0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe"C:\Users\Admin\AppData\Local\Temp\0991a4b587d8f4c8fd0390b02ff15cb48071a50a366442e1be8c234b529189db.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1424 -
C:\Users\Admin\jfnom.exe"C:\Users\Admin\jfnom.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:1160
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
384KB
MD5e2a43c6700756351969a6474d1bbbaa7
SHA1191a90d40ba274f70d7810ecbde81d65006adcd7
SHA256304bfdcd18be9d63b69380bd4ac2c2072cf93f1c107d07580e3da7f358177eb4
SHA5123ff1533fc3ad265db9ebcee5f215f73e8d0feb7467c5fe0357c0b5ce81c8524da428ea95bf74d2a135755cfb433e09745515f9e3e4006994a93c218e7e878d34
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Filesize
384KB
MD5e2a43c6700756351969a6474d1bbbaa7
SHA1191a90d40ba274f70d7810ecbde81d65006adcd7
SHA256304bfdcd18be9d63b69380bd4ac2c2072cf93f1c107d07580e3da7f358177eb4
SHA5123ff1533fc3ad265db9ebcee5f215f73e8d0feb7467c5fe0357c0b5ce81c8524da428ea95bf74d2a135755cfb433e09745515f9e3e4006994a93c218e7e878d34
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Filesize
384KB
MD5e2a43c6700756351969a6474d1bbbaa7
SHA1191a90d40ba274f70d7810ecbde81d65006adcd7
SHA256304bfdcd18be9d63b69380bd4ac2c2072cf93f1c107d07580e3da7f358177eb4
SHA5123ff1533fc3ad265db9ebcee5f215f73e8d0feb7467c5fe0357c0b5ce81c8524da428ea95bf74d2a135755cfb433e09745515f9e3e4006994a93c218e7e878d34
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Filesize
384KB
MD5e2a43c6700756351969a6474d1bbbaa7
SHA1191a90d40ba274f70d7810ecbde81d65006adcd7
SHA256304bfdcd18be9d63b69380bd4ac2c2072cf93f1c107d07580e3da7f358177eb4
SHA5123ff1533fc3ad265db9ebcee5f215f73e8d0feb7467c5fe0357c0b5ce81c8524da428ea95bf74d2a135755cfb433e09745515f9e3e4006994a93c218e7e878d34