Analysis
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max time kernel
174s -
max time network
210s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 13:32
Static task
static1
Behavioral task
behavioral1
Sample
4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe
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Size
100KB
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MD5
6058ff144674ba09d1b6d07c79e1265c
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SHA1
f82c8ed10dc1f2a41225676c24cd1519bd3175fd
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SHA256
4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb
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SHA512
1c05b952577048bbbcfbb2c4058dcfdbf43e1d8d7dddbf57218113d38ef8425f1b9fb8cb17216b926c268fb4adc39f258d01da12fd955a5c5f89656376eb307e
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SSDEEP
1536:n4Hi0gNHdOp4BNRXAEwqScgDz0Bg2PDXJRde/SwvFMYVwC+QaMnoXjLl06d:CKdW4zDfDXJVI+oo3m6d
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kuaziuf.exe -
Executes dropped EXE 1 IoCs
pid Process 2392 kuaziuf.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /m" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /e" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /r" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /i" kuaziuf.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /q" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /l" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /s" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /x" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /d" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /b" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /p" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /h" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /a" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /w" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /u" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /z" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /k" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /v" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /y" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /c" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /t" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /j" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /f" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /t" 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /g" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /n" kuaziuf.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kuaziuf = "C:\\Users\\Admin\\kuaziuf.exe /o" kuaziuf.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 64 IoCs
pid Process 2152 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe 2152 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe 2392 kuaziuf.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2152 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe 2392 kuaziuf.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2152 wrote to memory of 2392 2152 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe 84 PID 2152 wrote to memory of 2392 2152 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe 84 PID 2152 wrote to memory of 2392 2152 4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe"C:\Users\Admin\AppData\Local\Temp\4935b278900a8357957186261d369b421118c31bf146ffb42ab165661ebf0cfb.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2152 -
C:\Users\Admin\kuaziuf.exe"C:\Users\Admin\kuaziuf.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2392
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
100KB
MD56060d2b6dd0418c1de347fa0e45552c9
SHA1cd40fb2b9002fba8af28f20a66365bff2fc0ebb5
SHA256b93a5dafea79e274afdf74dbb693677e88143f81018d85473068671963b6b1e8
SHA51264cc7f584285c30d0b0fafd4cb36e0dc68b454d62d0b09dd9541e3485fe019d2f9fdd37676afa103405645f9bcba606ae4c1f7ce1458ccc01b00163452c51041
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Filesize
100KB
MD56060d2b6dd0418c1de347fa0e45552c9
SHA1cd40fb2b9002fba8af28f20a66365bff2fc0ebb5
SHA256b93a5dafea79e274afdf74dbb693677e88143f81018d85473068671963b6b1e8
SHA51264cc7f584285c30d0b0fafd4cb36e0dc68b454d62d0b09dd9541e3485fe019d2f9fdd37676afa103405645f9bcba606ae4c1f7ce1458ccc01b00163452c51041