Analysis
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max time kernel
45s -
max time network
30s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
27-12-2022 07:14
Static task
static1
Behavioral task
behavioral1
Sample
a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
Resource
win10v2004-20220901-en
General
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Target
a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
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Size
44KB
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MD5
c159afb7d2111690326cad610776db34
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SHA1
228239d1bf7020ecdc4021f3c20a14041b210d78
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SHA256
a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46
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SHA512
116f754bfb5d9efd73bdd9a8aaa004e6661248a7e726db54a810e581f7b6fd8f9306c858334c67fe5932d18dfaef015117a0c9a4e57efa2deb3610fa24ccb5bf
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SSDEEP
768:DKliIdJ0BEgMYojM5Ar/xY6Xc4FSimT3oDz/KVAhuxYFk:+ddiB5kM5Ar/S6Xc4FnmT3oDz/KVCuI
Malware Config
Signatures
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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\ExpandMove.tif => C:\Users\Admin\Pictures\ExpandMove.tif.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File renamed C:\Users\Admin\Pictures\GetUnlock.crw => C:\Users\Admin\Pictures\GetUnlock.crw.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened for modification C:\Users\Admin\Pictures\GetUnlock.crw.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File renamed C:\Users\Admin\Pictures\UndoDisable.raw => C:\Users\Admin\Pictures\UndoDisable.raw.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened for modification C:\Users\Admin\Pictures\DisconnectClose.tiff.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened for modification C:\Users\Admin\Pictures\ExpandMove.tif.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened for modification C:\Users\Admin\Pictures\UndoDisable.raw.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File renamed C:\Users\Admin\Pictures\UpdateMount.crw => C:\Users\Admin\Pictures\UpdateMount.crw.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened for modification C:\Users\Admin\Pictures\UpdateMount.crw.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File renamed C:\Users\Admin\Pictures\DisconnectClose.tiff => C:\Users\Admin\Pictures\DisconnectClose.tiff.NOKOYAWA a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\Q: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\O: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\P: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\G: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\H: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\L: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\W: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\T: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\Y: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\I: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\F: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\Z: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\X: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\N: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\E: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\R: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\U: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\A: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\S: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\K: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\J: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\V: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\B: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe File opened (read-only) \??\M: a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 1580 a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe"C:\Users\Admin\AppData\Local\Temp\a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe"1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
PID:1580