Analysis
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max time kernel
205s -
max time network
224s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
11-02-2022 06:42
Static task
static1
Behavioral task
behavioral1
Sample
9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe
Resource
win10v2004-en-20220112
General
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Target
9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe
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Size
53KB
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MD5
54a59c22a12430044c91da3f4f990161
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SHA1
76b8676fce45a2a2899989912c8f27cdbee066b0
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SHA256
9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520
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SHA512
d2d90d6328e314a591ea3ab3a537382538c918cbd3a6bd2c7697b6c22508fd45bb6dd16af6db013fa9d346499eeb8b8ea2ae053f06586835c7f2b9ba98e9582e
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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Modifies extensions of user files 6 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\ClearTest.tif => C:\Users\Admin\Pictures\ClearTest.tif.Readinstruction 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File renamed C:\Users\Admin\Pictures\EnterMerge.raw => C:\Users\Admin\Pictures\EnterMerge.raw.Readinstruction 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Admin\Pictures\InvokeSkip.tiff 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File renamed C:\Users\Admin\Pictures\InvokeSkip.tiff => C:\Users\Admin\Pictures\InvokeSkip.tiff.Readinstruction 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File renamed C:\Users\Admin\Pictures\ResizeRestart.png => C:\Users\Admin\Pictures\ResizeRestart.png.Readinstruction 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Admin\Pictures\SelectLimit.tiff 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe Set value (str) \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\BrowserUpdateCheck = "C:\\Users\\Admin\\AppData\\Local\\9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe" 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe -
Drops desktop.ini file(s) 13 IoCs
description ioc Process File opened for modification C:\Users\Public\Desktop\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Public\AccountPictures\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Admin\Videos\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Admin\Searches\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Public\Videos\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Public\Documents\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Public\Music\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Public\Libraries\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Public\Downloads\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Public\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe File opened for modification C:\Users\Public\Pictures\desktop.ini 9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe -
Modifies data under HKEY_USERS 19 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0" svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe"C:\Users\Admin\AppData\Local\Temp\9183c26844718effe7fed0b64842bbeb042fbe40a1c2ef77a0cc1381225d5520.exe"1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Drops desktop.ini file(s)
PID:3508
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3124
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:1392
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p1⤵
- Modifies data under HKEY_USERS
PID:1432