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Analysis
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max time kernel
153s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
29/10/2022, 19:06
Static task
static1
Behavioral task
behavioral1
Sample
d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe
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Size
184KB
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MD5
84a6f085d72c992bf7b0266c33699a30
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SHA1
aa0fad8b2e9e8785339d256f37f19e88aed4da2f
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SHA256
d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4
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SHA512
9e5b3ccb718cec66f7d2e780f47dce5c8e253073101a284045266a71ffdfa795f5b99e8a47312d7a6e0e2de5c60474fddd03a3d6594bedc905be761e0563b911
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SSDEEP
3072:cDGXZ6yu7o897rl2Y4HpRSQ8nsl8Koay6Vs68:9zulF8HpRpAKoahVsZ
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" d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" guuzik.exe -
Executes dropped EXE 1 IoCs
pid Process 400 guuzik.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 d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /l" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /t" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /u" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /y" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /d" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /v" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /w" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /o" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /c" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /x" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /f" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /k" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /q" guuzik.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /k" d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /s" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /b" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /p" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /a" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /m" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /i" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /e" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /j" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /z" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /n" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /g" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /h" guuzik.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\guuzik = "C:\\Users\\Admin\\guuzik.exe /r" guuzik.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 1184 d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe 1184 d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe 400 guuzik.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1184 d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe 400 guuzik.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1184 wrote to memory of 400 1184 d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe 84 PID 1184 wrote to memory of 400 1184 d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe 84 PID 1184 wrote to memory of 400 1184 d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.exe"C:\Users\Admin\AppData\Local\Temp\d2703ace4f8000bd9c7c322db5ab99c6358e5e3db0f6156710407079f20bceb4.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:1184 -
C:\Users\Admin\guuzik.exe"C:\Users\Admin\guuzik.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:400
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
184KB
MD5876e6f976351e800d7ff69241b9624ec
SHA1482eeba805857011f05bc13060b8583c5076335e
SHA256a48fe71a164a75261e0ec24e84dda841019a6bafcb072b0366cd867e0930e2b0
SHA51256dc8a71fc171849c8a7d7591d3d1f1e1f448eebe00ba547df2ee423ef244eee9fc418453f609b19afb266275e7852d8a0ae88e0b5d5fbeb9ca213c1c4d7fed9
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Filesize
184KB
MD5876e6f976351e800d7ff69241b9624ec
SHA1482eeba805857011f05bc13060b8583c5076335e
SHA256a48fe71a164a75261e0ec24e84dda841019a6bafcb072b0366cd867e0930e2b0
SHA51256dc8a71fc171849c8a7d7591d3d1f1e1f448eebe00ba547df2ee423ef244eee9fc418453f609b19afb266275e7852d8a0ae88e0b5d5fbeb9ca213c1c4d7fed9