Analysis
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max time kernel
151s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
06/11/2022, 15:24
Static task
static1
Behavioral task
behavioral1
Sample
b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe
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Size
224KB
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MD5
0d99e232f970e1f9cb6a3b2380339cc2
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SHA1
df5ac3507ea6633bd52b4f9b9eda86db9f6b2555
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SHA256
b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87
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SHA512
ed68814c3be92dd2f7bcfaa447c880ad58ffee2488f3d41a9008535c653695eb8d87c17135364347c801cdbbc6bf633773a2a602b67d3834126f959e65731458
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SSDEEP
3072:OXyqNsMoBuvZVpl2mclbj4Uvx+8ysNOu+2eRcKksU61JkkX39RLrw4ySKUbax2+l:xqN5Xp4LnbmlrZW
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" piugaun.exe -
Executes dropped EXE 1 IoCs
pid Process 4484 piugaun.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /t" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /r" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /j" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /q" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /l" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /x" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /z" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /w" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /o" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /f" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /b" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /g" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /s" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /c" piugaun.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /u" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /e" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /a" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /h" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /y" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /k" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /m" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /d" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /i" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /n" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /l" b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /p" piugaun.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\piugaun = "C:\\Users\\Admin\\piugaun.exe /v" piugaun.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 2064 b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe 2064 b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe 4484 piugaun.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2064 b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe 4484 piugaun.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2064 wrote to memory of 4484 2064 b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe 76 PID 2064 wrote to memory of 4484 2064 b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe 76 PID 2064 wrote to memory of 4484 2064 b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe 76
Processes
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C:\Users\Admin\AppData\Local\Temp\b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.exe"C:\Users\Admin\AppData\Local\Temp\b477c00683bf5167fc2d4ec81d4dc0c77f82c27d08beafef638c2aa4074e2a87.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:2064 -
C:\Users\Admin\piugaun.exe"C:\Users\Admin\piugaun.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:4484
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
224KB
MD5c7233ef217dea24b9004602d00f90c6f
SHA11101a86da9cffe3cd7374684f59d0b1c34edb81e
SHA256c389c2d04ddb48d40944a3d703c197c02041a783bd99cf8dd9cd9151cf21d2b1
SHA512f32724c55a43a13f45d9f77dc6bae41b9eff42d52e35409c5ca43e90ad5c0818c0ae259b6a5c13ab5f9ef3467686bae10d8781c2b79e2c37fe4f8ff02d8f9ca1
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Filesize
224KB
MD5c7233ef217dea24b9004602d00f90c6f
SHA11101a86da9cffe3cd7374684f59d0b1c34edb81e
SHA256c389c2d04ddb48d40944a3d703c197c02041a783bd99cf8dd9cd9151cf21d2b1
SHA512f32724c55a43a13f45d9f77dc6bae41b9eff42d52e35409c5ca43e90ad5c0818c0ae259b6a5c13ab5f9ef3467686bae10d8781c2b79e2c37fe4f8ff02d8f9ca1