Analysis
- max time kernel
151s - max time network
161s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
07/12/2022, 02:44
Static task
static1
Behavioral task
behavioral1
Sample
4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe
- Size 240KB
- Sample221207-c8lgbagh88
- SHA256 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795
- MD5 ca2b5155a63c08adf3f7973cd19fde45
- SHA1 15c9726e07301709c1dc5c43622c28cc0db26596
- SHA512 d4334c4670c4b7570cf9a3f9d6f5d554cf060ca5b34a51273c177590b96fb6131733083e9e97efa2e65c62d737615341d7c650dbb9a6beac96923fe16c4fa2e0
- SSDEEP 3072:dfC6kWGbfZozpw14qL4wgubOFFfmXSXK0JGUvIiV7K555ixFpeG1RGTxle5TF:dq6kWGbfg9qLLgvbJGUwiV7Zx/vCeBF
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" bekiv.exe - Executes dropped EXE 1 IoCs
pid Process 1440 bekiv.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe - Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /o" 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /q" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /d" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /y" bekiv.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /r" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /n" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /h" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /o" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /k" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /i" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /w" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /z" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /j" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /f" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /m" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /x" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /e" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /t" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /l" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /u" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /s" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /v" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /b" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /p" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /c" bekiv.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /g" bekiv.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bekiv = "C:\\Users\\Admin\\bekiv.exe /a" bekiv.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 value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 bekiv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum bekiv.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3780 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe 3780 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe 1440 bekiv.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3780 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe 1440 bekiv.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3780 wrote to memory of 1440 3780 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe 79 PID 3780 wrote to memory of 1440 3780 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe 79 PID 3780 wrote to memory of 1440 3780 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe 79
Processes
-
C:\Users\Admin\AppData\Local\Temp\4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe"C:\Users\Admin\AppData\Local\Temp\4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3780 -
C:\Users\Admin\bekiv.exe"C:\Users\Admin\bekiv.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:1440
-
-
C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4772
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\bekiv.exe
- Size 240KB
- SHA256 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795
- MD5 ca2b5155a63c08adf3f7973cd19fde45
- SHA1 15c9726e07301709c1dc5c43622c28cc0db26596
- SHA512 d4334c4670c4b7570cf9a3f9d6f5d554cf060ca5b34a51273c177590b96fb6131733083e9e97efa2e65c62d737615341d7c650dbb9a6beac96923fe16c4fa2e0
- SSDEEP 3072:dfC6kWGbfZozpw14qL4wgubOFFfmXSXK0JGUvIiV7K555ixFpeG1RGTxle5TF:dq6kWGbfg9qLLgvbJGUwiV7Zx/vCeBF
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\bekiv.exe
- Size 240KB
- SHA256 4da7e248e8e45346960eb16a53721530edf2a7209d004a581bb789282621a795
- MD5 ca2b5155a63c08adf3f7973cd19fde45
- SHA1 15c9726e07301709c1dc5c43622c28cc0db26596
- SHA512 d4334c4670c4b7570cf9a3f9d6f5d554cf060ca5b34a51273c177590b96fb6131733083e9e97efa2e65c62d737615341d7c650dbb9a6beac96923fe16c4fa2e0
- SSDEEP 3072:dfC6kWGbfZozpw14qL4wgubOFFfmXSXK0JGUvIiV7K555ixFpeG1RGTxle5TF:dq6kWGbfg9qLLgvbJGUwiV7Zx/vCeBF
- MD5 SHA1 SHA512 SSDEEP