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Analysis
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max time kernel
304s -
max time network
337s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 18:55
Static task
static1
Behavioral task
behavioral1
Sample
afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe
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Size
116KB
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MD5
2d47afc819ed604fd21e2cc6be139240
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SHA1
5329718bbb168032b959d81b819210341e493290
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SHA256
afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e
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SHA512
f1b7296311fc1eb38b70ac1a896cf980aa1139d23aa95582a823a945e3ad6d94d2513b8872d32b419f98cc05d48664858bce3046da374e5ffc0cdd482cc33f6c
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SSDEEP
1536:Gqpxoj++C7k8Kw6KBOIW4Z8HO1Zwt0f4HeDUEdMOPy9sbgN2wo7JaS1:FpZ+ykfIr1ZNDUEdTwQL
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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe Set value (int) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" tiarut.exe -
Executes dropped EXE 1 IoCs
pid Process 4720 tiarut.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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe -
Adds Run key to start application 2 TTPs 38 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /c" afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /v" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /F" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /Z" tiarut.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\ afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /d" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /c" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /B" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /i" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /I" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /o" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /Q" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /r" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /H" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /k" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /O" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /f" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /e" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /x" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /R" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /E" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /D" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /y" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /a" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /L" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /T" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /t" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /q" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /u" tiarut.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\ tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /N" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /A" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /P" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /V" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /M" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /l" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /s" tiarut.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiarut = "C:\\Users\\Admin\\tiarut.exe /J" tiarut.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 4032 afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe 4032 afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe 4720 tiarut.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4032 afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe 4720 tiarut.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4032 wrote to memory of 4720 4032 afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe 84 PID 4032 wrote to memory of 4720 4032 afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe 84 PID 4032 wrote to memory of 4720 4032 afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.exe"C:\Users\Admin\AppData\Local\Temp\afef641091619698172d09d9231c66b719094983d40aba5f201ebfd71c515a8e.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:4032 -
C:\Users\Admin\tiarut.exe"C:\Users\Admin\tiarut.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:4720
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
116KB
MD52aef8f8ecdec6526777f59d155698da9
SHA102859bb08c3cbb72daa0e972267c894c33607122
SHA2561abbeb974aea083bf1d2b105777565c970027c9d09a8a40f57feeabf62539272
SHA512e8bf92bcc0d27898a5021a0ae0cbcefd12ad0383b8f3a9522f8766a5d5a09cd4e686cd215db703b9099c222ca7a6966da99374abf9e5a2dfe200fbf48528fc45
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Filesize
116KB
MD52aef8f8ecdec6526777f59d155698da9
SHA102859bb08c3cbb72daa0e972267c894c33607122
SHA2561abbeb974aea083bf1d2b105777565c970027c9d09a8a40f57feeabf62539272
SHA512e8bf92bcc0d27898a5021a0ae0cbcefd12ad0383b8f3a9522f8766a5d5a09cd4e686cd215db703b9099c222ca7a6966da99374abf9e5a2dfe200fbf48528fc45