Analysis
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max time kernel
147s -
max time network
151s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
24-06-2020 15:10
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE
Resource
win7v200430
General
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Target
Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE
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Size
1.8MB
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MD5
cc5e307e68ccb5b363a1d8125e0edfb1
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SHA1
0937747b83e0624bec024daadeaf5c7effdbcb36
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SHA256
82ffa88d2b058317fcbc1af1c6fe06d7927be41ee28c7473a397f3db42670ca5
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SHA512
ac464272963a2208cf7061e22c75d2ae5b9c76ade74cd1c21aeb28690d2d2ccee45c2cfafe09ad588a56a802f438dfc9a56e60792f87e483db727b8286968815
Malware Config
Signatures
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Suspicious use of SetThreadContext 3 IoCs
Processes:
Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXEMSBuild.exedescription pid process target process PID 792 set thread context of 1172 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE MSBuild.exe PID 1172 set thread context of 1356 1172 MSBuild.exe vbc.exe PID 1172 set thread context of 1032 1172 MSBuild.exe vbc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
MSBuild.exepid process 1172 MSBuild.exe -
Processes:
MSBuild.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\SystemCertificates\CA\Certificates\8D4C4A23BA9EE84EA7348FA98CC6E65FBB69DE7B MSBuild.exe Set value (data) \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\SystemCertificates\CA\Certificates\8D4C4A23BA9EE84EA7348FA98CC6E65FBB69DE7B\Blob = 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 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
MSBuild.exedescription pid process Token: SeDebugPrivilege 1172 MSBuild.exe -
Adds Run entry to start application 2 TTPs 1 IoCs
Processes:
MSBuild.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" MSBuild.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 5 whatismyipaddress.com 7 whatismyipaddress.com 8 whatismyipaddress.com -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXEMSBuild.exedescription pid process target process PID 792 wrote to memory of 1172 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE MSBuild.exe PID 792 wrote to memory of 1172 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE MSBuild.exe PID 792 wrote to memory of 1172 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE MSBuild.exe PID 792 wrote to memory of 1172 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE MSBuild.exe PID 792 wrote to memory of 1172 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE MSBuild.exe PID 792 wrote to memory of 1172 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE MSBuild.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1356 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe PID 1172 wrote to memory of 1032 1172 MSBuild.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
MSBuild.exepid process 1172 MSBuild.exe -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXEpid process 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXEpid process 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE 792 Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE -
Drops startup file 1 IoCs
Processes:
Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXEdescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FsIso.url Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE"C:\Users\Admin\AppData\Local\Temp\Purchase Order_23011008_PDF ________________________ iGSTEEEE1124EEEEEEXEEEE.EXE"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Drops startup file
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Modifies system certificate store
- Suspicious use of AdjustPrivilegeToken
- Adds Run entry to start application
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\holderwb.txt
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memory/1032-7-0x0000000000442628-mapping.dmp
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memory/1032-6-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1032-8-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/1172-0-0x0000000000400000-0x0000000000488000-memory.dmpFilesize
544KB
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memory/1172-1-0x0000000000480C6E-mapping.dmp
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memory/1172-2-0x0000000000400000-0x0000000000488000-memory.dmpFilesize
544KB
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memory/1356-3-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1356-4-0x0000000000411654-mapping.dmp
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memory/1356-5-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB