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Analysis
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max time kernel
160s -
max time network
165s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 20:11
Static task
static1
Behavioral task
behavioral1
Sample
1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe
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Size
304KB
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MD5
76c0f6b73c3d6510886db2c7f8021e90
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SHA1
14a979fab318e96f4e6da2b24aaf827e2fef3f06
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SHA256
1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720
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SHA512
de0f1ab68ba26fa7e0a5641486b5e413e43bd2887be4139d6fc1b8e592cc9c7cecdc69cc605f10ddcb460e50c72baea24467300490ec653082efd0fbfca60f64
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SSDEEP
6144:EFrgO+BM7LIdvk9B1aKzhsMXcAxREoZPmbw0/8GHjTllRSxsn3B0OoepyYjHkRIc:qrtB1aKzhsMXRxREUPmbxXv3BHBdjHCB
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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" tiuavam.exe -
Executes dropped EXE 1 IoCs
pid Process 4948 tiuavam.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /t" tiuavam.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /a" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /i" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /e" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /x" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /q" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /y" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /j" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /k" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /n" 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /b" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /h" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /v" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /o" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /f" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /w" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /s" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /u" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /r" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /l" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /d" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /g" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /p" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /m" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /c" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /n" tiuavam.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tiuavam = "C:\\Users\\Admin\\tiuavam.exe /z" tiuavam.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum tiuavam.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 tiuavam.exe -
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 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2280 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 2280 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe 4948 tiuavam.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2280 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 4948 tiuavam.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2280 wrote to memory of 4948 2280 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 82 PID 2280 wrote to memory of 4948 2280 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 82 PID 2280 wrote to memory of 4948 2280 1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe"C:\Users\Admin\AppData\Local\Temp\1d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Users\Admin\tiuavam.exe"C:\Users\Admin\tiuavam.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4948
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4828
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
304KB
MD576c0f6b73c3d6510886db2c7f8021e90
SHA114a979fab318e96f4e6da2b24aaf827e2fef3f06
SHA2561d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720
SHA512de0f1ab68ba26fa7e0a5641486b5e413e43bd2887be4139d6fc1b8e592cc9c7cecdc69cc605f10ddcb460e50c72baea24467300490ec653082efd0fbfca60f64
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Filesize
304KB
MD576c0f6b73c3d6510886db2c7f8021e90
SHA114a979fab318e96f4e6da2b24aaf827e2fef3f06
SHA2561d955fa322f2776b1d160504f53bc562f0f2069e0e30e0beb21a9da77e2c5720
SHA512de0f1ab68ba26fa7e0a5641486b5e413e43bd2887be4139d6fc1b8e592cc9c7cecdc69cc605f10ddcb460e50c72baea24467300490ec653082efd0fbfca60f64