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Analysis
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max time kernel
207s -
max time network
209s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 10:11
Static task
static1
Behavioral task
behavioral1
Sample
b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe
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Size
240KB
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MD5
77266775a227151f03e94f13759dc77d
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SHA1
57cf029ab9eea83e162126e3b8f3f4453a59e6ce
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SHA256
b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956
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SHA512
b68355da85d53eb78bcf86e89e8283af5156206d8219f4a0589c890f2f82c02978bb7fabba7ad808c905ff647ce685524014df4c7f0c6d39ec722d6c05291130
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SSDEEP
3072:2kBrXT8j6VlpuBd90i/SmWKLi7CjFSivnfu3fbMdozt5cz+4T:2t0UGKGkFRKfeoztO3
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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gueod.exe -
Executes dropped EXE 1 IoCs
pid Process 3744 gueod.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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /o" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /u" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /n" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /c" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /g" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /m" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /b" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /d" gueod.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /r" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /w" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /q" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /p" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /f" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /z" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /l" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /x" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /j" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /h" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /s" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /c" b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /a" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /y" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /e" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /t" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /i" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /v" gueod.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gueod = "C:\\Users\\Admin\\gueod.exe /k" gueod.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 632 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 632 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe 3744 gueod.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 632 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 3744 gueod.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 632 wrote to memory of 3744 632 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 82 PID 632 wrote to memory of 3744 632 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 82 PID 632 wrote to memory of 3744 632 b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.exe"C:\Users\Admin\AppData\Local\Temp\b7c40207b725785f3dc59e2d8d80e2b7ce29a08c03d1f2285ae025e4acfbf956.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:632 -
C:\Users\Admin\gueod.exe"C:\Users\Admin\gueod.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:3744
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
240KB
MD528f3896a41fac67ef08b7e4b407fd65a
SHA1e605637e6835076e8c809ae96cced8d8681e4648
SHA2568ac9a9235b215a21df7cdc957326ae9b0c70b7b7c75471569d220b799fc9320e
SHA512a5322b8f1313699fb526596070f046fc1015a28ebf567238b2ec0050745e619ab9712430e69fa1430dd8a3a3e5bb66586261b33d1148e6cdccec7b30243d83d2
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Filesize
240KB
MD528f3896a41fac67ef08b7e4b407fd65a
SHA1e605637e6835076e8c809ae96cced8d8681e4648
SHA2568ac9a9235b215a21df7cdc957326ae9b0c70b7b7c75471569d220b799fc9320e
SHA512a5322b8f1313699fb526596070f046fc1015a28ebf567238b2ec0050745e619ab9712430e69fa1430dd8a3a3e5bb66586261b33d1148e6cdccec7b30243d83d2