Analysis
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max time kernel
153s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20/10/2022, 22:17
Static task
static1
Behavioral task
behavioral1
Sample
af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe
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Size
176KB
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MD5
66f1b0b357705bd1381699bf4fedd0d0
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SHA1
db1fb7ec1e2a0b156d6068247f56b92252a415f1
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SHA256
af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379
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SHA512
d63bea55b94dd5d2f04177d495ab28f57c01692c25b52a9691f57cc230d975f98f77f1258299f7deaed497224a1feed18a6186a27884f1d39976be6e191ba901
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SSDEEP
1536:o1DMqzt6IxKAOeoerdl/RgVQ7CpchirxJGOaJ+ibsBRLialOg2QQJYZV44PPSbbQ:IwRe/la27/WD7qaLYABl1VFAnd0
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" af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" peiyaef.exe -
Executes dropped EXE 1 IoCs
pid Process 4468 peiyaef.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 af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.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\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /v" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /a" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /j" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /u" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /k" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /y" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /s" peiyaef.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /d" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /b" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /f" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /n" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /g" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /o" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /l" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /h" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /r" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /c" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /x" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /w" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /c" af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /p" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /z" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /m" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /i" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /e" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /q" peiyaef.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\peiyaef = "C:\\Users\\Admin\\peiyaef.exe /t" peiyaef.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 2560 af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe 2560 af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe 4468 peiyaef.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2560 af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe 4468 peiyaef.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2560 wrote to memory of 4468 2560 af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe 85 PID 2560 wrote to memory of 4468 2560 af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe 85 PID 2560 wrote to memory of 4468 2560 af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.exe"C:\Users\Admin\AppData\Local\Temp\af2303c29307324dc076f681a8cc14c290cd4fd508631e38b526f1c71db98379.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:2560 -
C:\Users\Admin\peiyaef.exe"C:\Users\Admin\peiyaef.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:4468
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
176KB
MD5f22afc233d6da713f26a9cca4f175cf7
SHA15936b33f7029c83358561b0074da0f0f74b40d13
SHA256623e059813ccb819cb8d6fc48c53cc838630201249c5d61f13ccaa17aef0c277
SHA5121f087207bc79fad3e8be2ae2581baf4a51d32966a4ee3e9c24c1bd1842561fbdca9965a31a17315fc59d31505b356f4ab25082c987604839e11180f17048e9ed
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Filesize
176KB
MD5f22afc233d6da713f26a9cca4f175cf7
SHA15936b33f7029c83358561b0074da0f0f74b40d13
SHA256623e059813ccb819cb8d6fc48c53cc838630201249c5d61f13ccaa17aef0c277
SHA5121f087207bc79fad3e8be2ae2581baf4a51d32966a4ee3e9c24c1bd1842561fbdca9965a31a17315fc59d31505b356f4ab25082c987604839e11180f17048e9ed