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Analysis
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max time kernel
154s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07/11/2022, 16:33
Static task
static1
Behavioral task
behavioral1
Sample
fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe
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Size
252KB
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MD5
0d10195d5848bea42f7d75d44a1889a0
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SHA1
e6b3cee3bd7f85a01796666455cbd6be8e09d8ae
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SHA256
fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269
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SHA512
40fd0b3115c1fb9f4c22ffc3ff339395f9004351a1b8203a98cbce1df89cf7de38aacd7ead1545bd9c82d6d8fca0fe1b10937fc0f1e88bd662fba45ad2975c5a
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SSDEEP
3072:srAc5x7LamsWvZ0OgRqTAJcLGGO/xuiEyJeOOeGs5oxnkNzQKhx0:sr/Fx/ZLA4PmG6d
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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gausu.exe -
Executes dropped EXE 1 IoCs
pid Process 876 gausu.exe -
Loads dropped DLL 2 IoCs
pid Process 1480 fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe 1480 fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /Q" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /v" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /I" gausu.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /x" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /k" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /M" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /E" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /R" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /m" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /j" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /d" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /u" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /g" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /P" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /C" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /B" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /h" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /o" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /K" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /F" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /e" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /H" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /z" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /G" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /Z" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /O" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /n" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /J" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /X" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /c" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /i" gausu.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /Y" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /W" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /a" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /U" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /b" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /f" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /y" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /w" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /T" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /r" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /S" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /l" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /N" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /V" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /p" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /s" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /t" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /e" fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /L" gausu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\gausu = "C:\\Users\\Admin\\gausu.exe /A" gausu.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 1480 fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe 876 gausu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1480 fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe 876 gausu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1480 wrote to memory of 876 1480 fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe 27 PID 1480 wrote to memory of 876 1480 fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe 27 PID 1480 wrote to memory of 876 1480 fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe 27 PID 1480 wrote to memory of 876 1480 fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.exe"C:\Users\Admin\AppData\Local\Temp\fdc8c993b087948baa9b499d11de65aa65badb58ad445d629b4e2a6bd3bd1269.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:1480 -
C:\Users\Admin\gausu.exe"C:\Users\Admin\gausu.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:876
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
252KB
MD574ebad44c92cf7823e18f1cc85a2ca50
SHA1c4d6749019a2fbf60ec13a87699fb21eca80003c
SHA25620e20eca3c4619c91aa6f345da4c607d6f392f23f97d2967586eb1ed875c6421
SHA51226bc9e06b22459573544d5a4d4d88bcc3c49417b05a8a7cce86b7900f65495c578c341c62f9f84bb07e1a623cf08b04bf76ad5511d35907a400d1c9c4ebd181e
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Filesize
252KB
MD574ebad44c92cf7823e18f1cc85a2ca50
SHA1c4d6749019a2fbf60ec13a87699fb21eca80003c
SHA25620e20eca3c4619c91aa6f345da4c607d6f392f23f97d2967586eb1ed875c6421
SHA51226bc9e06b22459573544d5a4d4d88bcc3c49417b05a8a7cce86b7900f65495c578c341c62f9f84bb07e1a623cf08b04bf76ad5511d35907a400d1c9c4ebd181e
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Filesize
252KB
MD574ebad44c92cf7823e18f1cc85a2ca50
SHA1c4d6749019a2fbf60ec13a87699fb21eca80003c
SHA25620e20eca3c4619c91aa6f345da4c607d6f392f23f97d2967586eb1ed875c6421
SHA51226bc9e06b22459573544d5a4d4d88bcc3c49417b05a8a7cce86b7900f65495c578c341c62f9f84bb07e1a623cf08b04bf76ad5511d35907a400d1c9c4ebd181e
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Filesize
252KB
MD574ebad44c92cf7823e18f1cc85a2ca50
SHA1c4d6749019a2fbf60ec13a87699fb21eca80003c
SHA25620e20eca3c4619c91aa6f345da4c607d6f392f23f97d2967586eb1ed875c6421
SHA51226bc9e06b22459573544d5a4d4d88bcc3c49417b05a8a7cce86b7900f65495c578c341c62f9f84bb07e1a623cf08b04bf76ad5511d35907a400d1c9c4ebd181e