Analysis
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max time kernel
152s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03-12-2022 20:11
Static task
static1
Behavioral task
behavioral1
Sample
1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe
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Size
304KB
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MD5
76c0f6b73c3d6510886db2c7f8021e90
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SHA1
14a979fab318e96f4e6da2b24aaf827e2fef3f06
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SHA256
1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720
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SHA512
de0f1ab68ba26fa7e0a5641486b5e413e43bd2887be4139d6fc1b8e592cc9c7cecdc69cc605f10ddcb460e50c72baea24467300490ec653082efd0fbfca60f64
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SSDEEP
6144:EFrgO+BM7LIdvk9B1aKzhsMXcAxREoZPmbw0/8GHjTllRSxsn3B0OoepyYjHkRIc:qrtB1aKzhsMXRxREUPmbxXv3BHBdjHCB
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" fbfiaw.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe -
Executes dropped EXE 1 IoCs
pid Process 948 fbfiaw.exe -
Loads dropped DLL 2 IoCs
pid Process 1340 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 1340 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe -
Adds Run key to start application 2 TTPs 28 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /c" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /w" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /g" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /f" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /y" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /p" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /q" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /n" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /x" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /l" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /h" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /d" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /t" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /m" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /s" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /i" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /j" 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /k" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /e" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /v" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /j" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /z" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /u" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /r" fbfiaw.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /b" fbfiaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\fbfiaw = "C:\\Users\\Admin\\fbfiaw.exe /o" fbfiaw.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum fbfiaw.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 fbfiaw.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 1340 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe 948 fbfiaw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1340 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 948 fbfiaw.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1340 wrote to memory of 948 1340 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 28 PID 1340 wrote to memory of 948 1340 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 28 PID 1340 wrote to memory of 948 1340 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 28 PID 1340 wrote to memory of 948 1340 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe"C:\Users\Admin\AppData\Local\Temp\1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1340 -
C:\Users\Admin\fbfiaw.exe"C:\Users\Admin\fbfiaw.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:948
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
304KB
MD576c0f6b73c3d6510886db2c7f8021e90
SHA114a979fab318e96f4e6da2b24aaf827e2fef3f06
SHA2561d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720
SHA512de0f1ab68ba26fa7e0a5641486b5e413e43bd2887be4139d6fc1b8e592cc9c7cecdc69cc605f10ddcb460e50c72baea24467300490ec653082efd0fbfca60f64
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Filesize
304KB
MD576c0f6b73c3d6510886db2c7f8021e90
SHA114a979fab318e96f4e6da2b24aaf827e2fef3f06
SHA2561d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720
SHA512de0f1ab68ba26fa7e0a5641486b5e413e43bd2887be4139d6fc1b8e592cc9c7cecdc69cc605f10ddcb460e50c72baea24467300490ec653082efd0fbfca60f64
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Filesize
304KB
MD576c0f6b73c3d6510886db2c7f8021e90
SHA114a979fab318e96f4e6da2b24aaf827e2fef3f06
SHA2561d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720
SHA512de0f1ab68ba26fa7e0a5641486b5e413e43bd2887be4139d6fc1b8e592cc9c7cecdc69cc605f10ddcb460e50c72baea24467300490ec653082efd0fbfca60f64
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Filesize
304KB
MD576c0f6b73c3d6510886db2c7f8021e90
SHA114a979fab318e96f4e6da2b24aaf827e2fef3f06
SHA2561d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720
SHA512de0f1ab68ba26fa7e0a5641486b5e413e43bd2887be4139d6fc1b8e592cc9c7cecdc69cc605f10ddcb460e50c72baea24467300490ec653082efd0fbfca60f64