Analysis
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max time kernel
150s -
max time network
139s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
11-02-2022 07:14
Static task
static1
Behavioral task
behavioral1
Sample
05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe
Resource
win10v2004-en-20220112
General
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Target
05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe
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Size
31KB
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MD5
31e13dbdb26f7dfabcb3087a27c08153
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SHA1
c6b85fb180f6cdd0b95088327292ebce7f7f0c29
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SHA256
05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489
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SHA512
1ec1bd8c469376f2c073d9d0bfa5bec5a7095293f4d6a0960b0e8af46144480ae7f845468b563cbcfc1d12581d74ae22f046c46c5955ed56b5c3cb16fffccc1d
Malware Config
Extracted
C:\how_to_back_files.html
http-equiv="Content-Type"
Signatures
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GlobeImposter
GlobeImposter is a ransomware first seen in 2017.
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Modifies extensions of user files 10 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\UnprotectSubmit.crw => C:\Users\Admin\Pictures\UnprotectSubmit.crw.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File renamed C:\Users\Admin\Pictures\ExpandUnlock.crw => C:\Users\Admin\Pictures\ExpandUnlock.crw.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Pictures\GrantReceive.tiff 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File renamed C:\Users\Admin\Pictures\MountLimit.png => C:\Users\Admin\Pictures\MountLimit.png.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File renamed C:\Users\Admin\Pictures\TestConfirm.tif => C:\Users\Admin\Pictures\TestConfirm.tif.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File renamed C:\Users\Admin\Pictures\UpdateUninstall.tif => C:\Users\Admin\Pictures\UpdateUninstall.tif.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File renamed C:\Users\Admin\Pictures\BlockSkip.crw => C:\Users\Admin\Pictures\BlockSkip.crw.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File renamed C:\Users\Admin\Pictures\BlockSync.png => C:\Users\Admin\Pictures\BlockSync.png.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File renamed C:\Users\Admin\Pictures\GrantReceive.tiff => C:\Users\Admin\Pictures\GrantReceive.tiff.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File renamed C:\Users\Admin\Pictures\SetExit.crw => C:\Users\Admin\Pictures\SetExit.crw.SAMBUKA 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\BrowserUpdateCheck = "C:\\Users\\Admin\\AppData\\Local\\05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe" 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe -
Drops desktop.ini file(s) 26 IoCs
description ioc Process File opened for modification C:\Users\Admin\Favorites\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Libraries\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Documents\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Videos\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Documents\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Videos\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Desktop\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Searches\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Music\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Links\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Music\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Pictures\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe File opened for modification C:\Users\Public\Downloads\desktop.ini 05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe"C:\Users\Admin\AppData\Local\Temp\05f357f42b776477b27cc8be9cfa307bf900d3da94017271867df2e849b29489.exe"1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Drops desktop.ini file(s)
PID:1684