Analysis
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max time kernel
152s -
max time network
42s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07/11/2022, 04:04
Static task
static1
Behavioral task
behavioral1
Sample
bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe
Resource
win7-20220812-en
windows7-x64
Behavioral task
behavioral2
Sample
bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
General
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Target
bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe
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Size
156KB
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MD5
1f7fd12d8b3f412715503fdfaf728ef0
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SHA1
60ef8bf1068ea3f9e57916decb8dc8812488f1a1
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SHA256
bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc
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SHA512
28cc907dc38bb912d0c9abdf0570f6a2a6ed2cc1595b2d9f77510ab35376879f23fb47315b821b450e1a868ab8b61275559d290b46f87bfd1fe79982c67740db
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SSDEEP
3072:y6oKL8OkxY7hCjG8G3GbGVGBGfGuGxGWYcrf6Kadk:y6FLvU+AYcD6Kad
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 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" fkyoc.exe -
Executes dropped EXE 1 IoCs
pid Process 1472 fkyoc.exe -
Loads dropped DLL 2 IoCs
pid Process 1608 bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe 1608 bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fkyoc.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\fkyoc = "C:\\Users\\Admin\\fkyoc.exe" fkyoc.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 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe 1472 fkyoc.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1608 bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe 1472 fkyoc.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1608 wrote to memory of 1472 1608 bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe 26 PID 1608 wrote to memory of 1472 1608 bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe 26 PID 1608 wrote to memory of 1472 1608 bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe 26 PID 1608 wrote to memory of 1472 1608 bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe 26 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25 PID 1472 wrote to memory of 1608 1472 fkyoc.exe 25
Processes
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C:\Users\Admin\AppData\Local\Temp\bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe"C:\Users\Admin\AppData\Local\Temp\bd04d5dc4d768d0ca4ad9a35745aa8f4032f1ef6932cf772dee24601cab236bc.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608 -
C:\Users\Admin\fkyoc.exe"C:\Users\Admin\fkyoc.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
- Suspicious use of WriteProcessMemory
PID:1472
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
156KB
MD5eed767a22ab3977da491f4c21c1a84e7
SHA108908f1063c7c477d74162e692bad05b1cca0de5
SHA256498cd2e390b20a002b60fbf96311e7e76065aa5493c0ac032b419d8caacab6eb
SHA5123380d10a8f56eb82c54ab8b286626090a33068d07c769b957efa17a78d8d52521835c94f37b44cb002d849f1f7ade23f5c79e7fa9a1b2202fa68313645021bdf
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Filesize
156KB
MD5eed767a22ab3977da491f4c21c1a84e7
SHA108908f1063c7c477d74162e692bad05b1cca0de5
SHA256498cd2e390b20a002b60fbf96311e7e76065aa5493c0ac032b419d8caacab6eb
SHA5123380d10a8f56eb82c54ab8b286626090a33068d07c769b957efa17a78d8d52521835c94f37b44cb002d849f1f7ade23f5c79e7fa9a1b2202fa68313645021bdf
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Filesize
156KB
MD5eed767a22ab3977da491f4c21c1a84e7
SHA108908f1063c7c477d74162e692bad05b1cca0de5
SHA256498cd2e390b20a002b60fbf96311e7e76065aa5493c0ac032b419d8caacab6eb
SHA5123380d10a8f56eb82c54ab8b286626090a33068d07c769b957efa17a78d8d52521835c94f37b44cb002d849f1f7ade23f5c79e7fa9a1b2202fa68313645021bdf
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Filesize
156KB
MD5eed767a22ab3977da491f4c21c1a84e7
SHA108908f1063c7c477d74162e692bad05b1cca0de5
SHA256498cd2e390b20a002b60fbf96311e7e76065aa5493c0ac032b419d8caacab6eb
SHA5123380d10a8f56eb82c54ab8b286626090a33068d07c769b957efa17a78d8d52521835c94f37b44cb002d849f1f7ade23f5c79e7fa9a1b2202fa68313645021bdf