Analysis
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max time kernel
23s -
max time network
13s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
10/08/2024, 09:25
Static task
static1
Behavioral task
behavioral1
Sample
airobuxgen.ps1
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
airobuxgen.ps1
Resource
win10v2004-20240802-en
General
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Target
airobuxgen.ps1
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Size
2KB
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MD5
3991073564f05900f8dcf9ea6d65893d
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SHA1
18e1d0109180a84dad717943262b38c0d827a009
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SHA256
f02820869fb4768c2e5e04f85168bde9222b11c3c575118296be5dfd6af07b3a
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SHA512
f1341a552b9d72d150a34e15ee278dcc107e4aedc4773728b26cf0f0406cef51d823e7443d3ae2cd8bf4ecadfc1c18ebb00b6aa0d2f6a872022f9654a6d0dd3f
Malware Config
Signatures
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2536 netsh.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\FakeMalware = "C:\\Windows\\System32\\malware.bat" powershell.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\System32\malware.bat powershell.exe -
pid Process 2552 powershell.exe -
Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh netsh.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2376 cmd.exe 3060 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3060 PING.EXE -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3004 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2552 powershell.exe 2552 powershell.exe 2552 powershell.exe 2552 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2552 powershell.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2552 wrote to memory of 2536 2552 powershell.exe 31 PID 2552 wrote to memory of 2536 2552 powershell.exe 31 PID 2552 wrote to memory of 2536 2552 powershell.exe 31 PID 2552 wrote to memory of 3004 2552 powershell.exe 32 PID 2552 wrote to memory of 3004 2552 powershell.exe 32 PID 2552 wrote to memory of 3004 2552 powershell.exe 32 PID 2552 wrote to memory of 2376 2552 powershell.exe 33 PID 2552 wrote to memory of 2376 2552 powershell.exe 33 PID 2552 wrote to memory of 2376 2552 powershell.exe 33 PID 2376 wrote to memory of 3060 2376 cmd.exe 34 PID 2376 wrote to memory of 3060 2376 cmd.exe 34 PID 2376 wrote to memory of 3060 2376 cmd.exe 34 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\airobuxgen.ps11⤵
- Adds Run key to start application
- Drops file in System32 directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2552 -
C:\Windows\system32\netsh.exe"C:\Windows\system32\netsh.exe" advfirewall set allprofiles state off2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:2536
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C:\Windows\system32\schtasks.exe"C:\Windows\system32\schtasks.exe" /create /tn MaliciousTask /tr C:\Windows\System32\malware.bat /sc onlogon /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:3004
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /c ping localhost -n 5 >nul & echo Injecting into process2⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2376 -
C:\Windows\system32\PING.EXEping localhost -n 53⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3060
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {995C996E-D918-4a8c-A302-45719A6F4EA7} -Embedding1⤵PID:1304
Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
1