Analysis
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max time kernel
166s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
11-02-2022 06:47
Static task
static1
Behavioral task
behavioral1
Sample
77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe
Resource
win10v2004-en-20220113
General
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Target
77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe
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Size
53KB
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MD5
f2f4cbbcbad997cf857eefb2a8d7dc38
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SHA1
340dcfa4763e55204ca8a504a29c3b938b909347
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SHA256
77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906
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SHA512
35844d8c99bd166b6ce414907d5b9c19ba4162ff0e6644f8839b55deeac338e58657afd557b9edcfa139f5f723cb0db4acd7e4e687a23abbac154c54b4a3c2ec
Malware Config
Extracted
C:\Recovery_Instructions.html
Signatures
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GlobeImposter
GlobeImposter is a ransomware first seen in 2017.
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Modifies extensions of user files 5 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\ConvertToSwitch.raw => C:\Users\Admin\Pictures\ConvertToSwitch.raw.nz 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File renamed C:\Users\Admin\Pictures\SaveExpand.png => C:\Users\Admin\Pictures\SaveExpand.png.nz 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File renamed C:\Users\Admin\Pictures\UnblockSkip.raw => C:\Users\Admin\Pictures\UnblockSkip.raw.nz 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File renamed C:\Users\Admin\Pictures\CompareGroup.png => C:\Users\Admin\Pictures\CompareGroup.png.nz 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File renamed C:\Users\Admin\Pictures\ConfirmUnpublish.tif => C:\Users\Admin\Pictures\ConfirmUnpublish.tif.nz 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BrowserUpdateCheck = "C:\\Users\\Admin\\AppData\\Local\\77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe" 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe -
Drops desktop.ini file(s) 15 IoCs
description ioc Process File opened for modification C:\Users\Public\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Public\Downloads\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Public\Pictures\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Public\Desktop\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Admin\Searches\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Admin\Videos\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Public\Videos\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Public\Music\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Public\Libraries\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe File opened for modification C:\Users\Public\Documents\desktop.ini 77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe -
Drops file in Windows directory 6 IoCs
description ioc Process 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 File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeShutdownPrivilege 1628 svchost.exe Token: SeCreatePagefilePrivilege 1628 svchost.exe Token: SeShutdownPrivilege 1628 svchost.exe Token: SeCreatePagefilePrivilege 1628 svchost.exe Token: SeShutdownPrivilege 1628 svchost.exe Token: SeCreatePagefilePrivilege 1628 svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe"C:\Users\Admin\AppData\Local\Temp\77c1a2b2242d87e68757d82b1bb8ced0b48756f4201153151acb6510caf76906.exe"1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Drops desktop.ini file(s)
PID:4628
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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:1628
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵PID:700