Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
31-12-2023 13:10
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
3763c8c3de5fd696aa2b523e876e0259.exe
Resource
win7-20231129-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
3763c8c3de5fd696aa2b523e876e0259.exe
Resource
win10v2004-20231215-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
3763c8c3de5fd696aa2b523e876e0259.exe
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Size
264KB
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MD5
3763c8c3de5fd696aa2b523e876e0259
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SHA1
54e21a465fb8077791e498f32bef18c793f346d2
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SHA256
7da2dfa49a0a51695aacef68d39aedb61fbbd4069908b907ca9617cbb3495687
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SHA512
d35cfed5d3371b5c3fd02ea60701026be101dace06a7348a04aa0f234e87815204d22b77c45cdc2e716d2b4fbd62a3b1467b25fc29ded1074472a3121d151ae2
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SSDEEP
6144:UFZCfA0OqFNLV46S0lE+6LVjlWPuEwTIwMe/wwU0O:UzKhNLV4/nLVjlWPuEwY
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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 3763c8c3de5fd696aa2b523e876e0259.exe Set value (int) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" riavo.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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation 3763c8c3de5fd696aa2b523e876e0259.exe -
Executes dropped EXE 1 IoCs
pid Process 3864 riavo.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /q" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /p" 3763c8c3de5fd696aa2b523e876e0259.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /t" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /s" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /l" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /t" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /a" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /u" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /f" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /w" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /e" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /g" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /i" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /m" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /o" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /c" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /v" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /u" 3763c8c3de5fd696aa2b523e876e0259.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /c" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /p" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /d" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /i" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /h" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /b" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /z" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /y" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /k" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /w" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /b" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /x" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /z" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /n" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /d" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /x" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /s" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /l" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /e" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /h" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /j" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /a" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /y" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /v" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /k" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /r" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /r" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /f" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /p" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /q" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /m" riavo.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /j" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /u" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /g" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /o" riavo.exe Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\riavo = "C:\\Users\\Admin\\riavo.exe /n" riavo.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3168 3763c8c3de5fd696aa2b523e876e0259.exe 3168 3763c8c3de5fd696aa2b523e876e0259.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe 3864 riavo.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3864 riavo.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3168 3763c8c3de5fd696aa2b523e876e0259.exe 3864 riavo.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3168 wrote to memory of 3864 3168 3763c8c3de5fd696aa2b523e876e0259.exe 93 PID 3168 wrote to memory of 3864 3168 3763c8c3de5fd696aa2b523e876e0259.exe 93 PID 3168 wrote to memory of 3864 3168 3763c8c3de5fd696aa2b523e876e0259.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\3763c8c3de5fd696aa2b523e876e0259.exe"C:\Users\Admin\AppData\Local\Temp\3763c8c3de5fd696aa2b523e876e0259.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:3168 -
C:\Users\Admin\riavo.exe"C:\Users\Admin\riavo.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:3864
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
264KB
MD542b1fd078997ee3db881420b51677e92
SHA1b398892bf217f0794eef53990bcbc89bbc102320
SHA25625b94f61fdceb397934eb9c3b5e4c52f0890e26e9fa20588a243810961364d07
SHA51201f8030bfc462beb93ceb40e172fd67c97189c9684cb5938fb574ef8b83c19f297ee03166310a1b613583785d21c267bd06dee475ef1f3b14db9430cff4aebea