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Analysis
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max time kernel
151s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07/12/2022, 02:30
Static task
static1
Behavioral task
behavioral1
Sample
f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe
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Size
144KB
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MD5
1e8824a7f2a029f9d1ec851d9437ceeb
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SHA1
00941217a6f25814b09baf5287440ea4d9ebf5cc
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SHA256
f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c
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SHA512
349979937a0926b6d75f5cd7147625332b49181c3a92c9ad058701ef607d5dd73e137fd82715e8d1a15f71a3e9d311e8437610a98ba612bbc25f0e92dc09b1cc
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SSDEEP
3072:N6n6lcWd5gVUL5mynf1lFCm8hlJvzMwgv21s4oQZiEBs:N6n521Cm8hlJvzMwgvpW8
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yioih.exe -
Executes dropped EXE 1 IoCs
pid Process 1148 yioih.exe -
Loads dropped DLL 2 IoCs
pid Process 976 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 976 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /O" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /F" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /x" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /U" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /S" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /g" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /Q" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /b" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /e" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /L" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /g" f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /j" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /Z" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /m" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /p" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /k" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /I" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /P" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /Y" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /W" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /o" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /s" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /H" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /T" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /c" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /y" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /C" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /a" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /R" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /l" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /A" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /d" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /X" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /z" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /E" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /h" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /n" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /K" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /w" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /B" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /v" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /D" yioih.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /r" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /q" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /N" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /i" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /f" yioih.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /t" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /V" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /J" yioih.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yioih = "C:\\Users\\Admin\\yioih.exe /u" yioih.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 976 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe 1148 yioih.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 976 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 1148 yioih.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 976 wrote to memory of 1148 976 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 27 PID 976 wrote to memory of 1148 976 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 27 PID 976 wrote to memory of 1148 976 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 27 PID 976 wrote to memory of 1148 976 f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.exe"C:\Users\Admin\AppData\Local\Temp\f9efc755497cb807e260f9b32389b2584ae9bc231b2a25078aa0610795e8c33c.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:976 -
C:\Users\Admin\yioih.exe"C:\Users\Admin\yioih.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:1148
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
144KB
MD56efdde16053d9c45ee9544ae3c7b2ac6
SHA11ac858741c5c1e7ada8e085f8cae8a2ab941bdbc
SHA256c261802f68b76e108d91db8424469b2b30e95a4925ad8197efd2771b1d040f08
SHA512966b9b9ec24f753d5b72a2c6701997a87a29dce0e52eebc10e90951698bf057674eba9243747282b93931851fbf2860134d675fa20354cb5a86faf6fc5320d63
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Filesize
144KB
MD56efdde16053d9c45ee9544ae3c7b2ac6
SHA11ac858741c5c1e7ada8e085f8cae8a2ab941bdbc
SHA256c261802f68b76e108d91db8424469b2b30e95a4925ad8197efd2771b1d040f08
SHA512966b9b9ec24f753d5b72a2c6701997a87a29dce0e52eebc10e90951698bf057674eba9243747282b93931851fbf2860134d675fa20354cb5a86faf6fc5320d63
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Filesize
144KB
MD56efdde16053d9c45ee9544ae3c7b2ac6
SHA11ac858741c5c1e7ada8e085f8cae8a2ab941bdbc
SHA256c261802f68b76e108d91db8424469b2b30e95a4925ad8197efd2771b1d040f08
SHA512966b9b9ec24f753d5b72a2c6701997a87a29dce0e52eebc10e90951698bf057674eba9243747282b93931851fbf2860134d675fa20354cb5a86faf6fc5320d63
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Filesize
144KB
MD56efdde16053d9c45ee9544ae3c7b2ac6
SHA11ac858741c5c1e7ada8e085f8cae8a2ab941bdbc
SHA256c261802f68b76e108d91db8424469b2b30e95a4925ad8197efd2771b1d040f08
SHA512966b9b9ec24f753d5b72a2c6701997a87a29dce0e52eebc10e90951698bf057674eba9243747282b93931851fbf2860134d675fa20354cb5a86faf6fc5320d63