Analysis
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max time kernel
366s -
max time network
429s -
platform
windows10-1703_x64 -
resource
win10-20220901-en -
resource tags
arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system -
submitted
09-01-2023 18:41
Static task
static1
Behavioral task
behavioral1
Sample
mchost.chm
Resource
win10-20220812-en
windows10-1703-x64
0 signatures
300 seconds
Behavioral task
behavioral2
Sample
mchost.exe
Resource
win10-20220901-en
windows10-1703-x64
4 signatures
300 seconds
General
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Target
mchost.exe
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Size
872KB
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MD5
c56b5f0201a3b3de53e561fe76912bfd
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SHA1
2a4062e10a5de813f5688221dbeb3f3ff33eb417
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SHA256
237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
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SHA512
195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
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SSDEEP
12288:6pVWeOV7GtINsegA/hMyyzlcqikvAfcN9b2MyZa31twoPTdFxgawV2M01:6T3E53Myyzl0hMf1tr7Caw8M01
Score
3/10
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 20 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 mchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff mchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 mchost.exe Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings mchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff mchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 mchost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Documents" mchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance mchost.exe Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\WOW6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance mchost.exe Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell mchost.exe Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU mchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots mchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff mchost.exe Set value (int) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" mchost.exe Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell mchost.exe Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags mchost.exe Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 mchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 14002e80922b16d365937a46956b92703aca08af0000 mchost.exe Key created \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 mchost.exe Set value (data) \REGISTRY\USER\S-1-5-21-2368682536-4045190062-1465778271-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff mchost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4796 mchost.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4796 mchost.exe