Analysis
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max time kernel
169s -
max time network
176s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
11-02-2022 06:56
Static task
static1
Behavioral task
behavioral1
Sample
52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe
Resource
win10v2004-en-20220113
General
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Target
52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe
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Size
55KB
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MD5
a93cf155e739fad41812e66fdce6dc2d
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SHA1
9168c5220cc1e79ac900b99cf72273e5d3df58eb
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SHA256
52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975
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SHA512
69dfdee6d06c08888cb232c728e0b476581e408234af365b7907a3f89a172dc1529b5eec92c8451c4e990e9c7349a8bda104f5016ef83a11d441465050e7e015
Malware Config
Extracted
C:\how_to_back_files.html
Signatures
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GlobeImposter
GlobeImposter is a ransomware first seen in 2017.
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BrowserUpdateCheck = "C:\\Users\\Admin\\AppData\\Local\\52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe" 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe -
Drops desktop.ini file(s) 9 IoCs
description ioc Process File opened for modification C:\Users\Public\Libraries\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe File opened for modification C:\Users\Public\Downloads\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe File opened for modification C:\Users\Public\Documents\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe File opened for modification C:\Users\Public\Desktop\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe File opened for modification C:\Users\Public\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe File opened for modification C:\Users\Public\Pictures\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe File opened for modification C:\Users\Public\Music\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe File opened for modification C:\Users\Public\Videos\desktop.ini 52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe -
Drops file in Windows directory 7 IoCs
description 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 File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS SearchApp.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU SearchApp.exe -
Modifies registry class 3 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\SOFTWARE\Microsoft\Speech_OneCore\Isolated\ohDO1Sgy3MzgdEgEb4WYfDS4ei SearchApp.exe Set value (str) \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\SOFTWARE\Microsoft\Speech_OneCore\Isolated\ohDO1Sgy3MzgdEgEb4WYfDS4ei = "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Speech_OneCore\\Recognizers\\Tokens\\MS-1033-110-WINMO-DNN" SearchApp.exe Key created \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000_Classes\Local Settings\MuiCache SearchApp.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeShutdownPrivilege 2052 svchost.exe Token: SeCreatePagefilePrivilege 2052 svchost.exe Token: SeShutdownPrivilege 2052 svchost.exe Token: SeCreatePagefilePrivilege 2052 svchost.exe Token: SeShutdownPrivilege 2052 svchost.exe Token: SeCreatePagefilePrivilege 2052 svchost.exe Token: SeSecurityPrivilege 5016 TiWorker.exe Token: SeRestorePrivilege 5016 TiWorker.exe Token: SeBackupPrivilege 5016 TiWorker.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3700 SearchApp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe"C:\Users\Admin\AppData\Local\Temp\52c1025eada8282232f4c1a9dc6e8579ddf5ed3ee3863884fc923d794cd93975.exe"1⤵
- Adds Run key to start application
- Drops desktop.ini file(s)
PID:3216
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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:2052
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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⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:5016
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C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
- Enumerates system info in registry
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:3700
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p -s BITS1⤵PID:4036
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k appmodel -p -s camsvc1⤵PID:4984