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Analysis
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max time kernel
164s -
max time network
98s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
24/11/2022, 00:12
Static task
static1
Behavioral task
behavioral1
Sample
7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe
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Size
156KB
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MD5
070fc881a3d326c777380cdf5c1fb1c0
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SHA1
542d98fd48844d77e08ac82d387fbfaadbf2d82c
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SHA256
7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9
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SHA512
27e4120502aa590b6a4299f38e33e30d0f589a42c726035680ca6972fa3956a8c62983e5823affb7a7da5c2861b2f57891fca9b1e2be5bbafe8a8634682291bb
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SSDEEP
3072:DpJreiFgyqTRlU3NhCBvu9pjZEwDxdr8Jr8nG:9JERl+NhwWrjuwDQaG
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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" guazu.exe -
Executes dropped EXE 1 IoCs
pid Process 336 guazu.exe -
Loads dropped DLL 2 IoCs
pid Process 836 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe 836 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe -
Adds Run key to start application 2 TTPs 52 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /E" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /j" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /T" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /t" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /G" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /u" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /F" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /o" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /f" guazu.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /L" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /H" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /O" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /s" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /b" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /U" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /M" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /v" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /Y" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /h" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /i" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /p" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /C" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /e" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /c" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /l" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /N" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /r" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /V" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /J" 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /d" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /I" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /m" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /W" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /Q" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /X" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /A" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /P" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /S" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /x" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /n" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /Z" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /w" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /z" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /q" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /B" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /R" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /D" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /J" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /a" guazu.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\guazu = "C:\\Users\\Admin\\guazu.exe /k" guazu.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 836 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe 336 guazu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 836 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe 336 guazu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 836 wrote to memory of 336 836 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe 28 PID 836 wrote to memory of 336 836 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe 28 PID 836 wrote to memory of 336 836 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe 28 PID 836 wrote to memory of 336 836 7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe"C:\Users\Admin\AppData\Local\Temp\7e7b7966b68133999f2b303bac959a14de8c92ac6e49ea2f5fc3f7a7b51ce6b9.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:836 -
C:\Users\Admin\guazu.exe"C:\Users\Admin\guazu.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:336
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
156KB
MD5bfe30ad0c5ba4e0ecbee31340cc78d7e
SHA1f54d7c637c7b9039d378bff4c3d64d927e2750a9
SHA2565bf90904b58522c032b8a3b8fd208264e414cdffa5396f0ea162e25466dc5ddc
SHA512cfe496eb75c6bfeda00f362822d0f39315256f99dd945ae400faaa0f6e254a95b881a54a622625a1129900e5fd1dee49133cb411655d22afdf5985c6d4ef4566
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Filesize
156KB
MD5bfe30ad0c5ba4e0ecbee31340cc78d7e
SHA1f54d7c637c7b9039d378bff4c3d64d927e2750a9
SHA2565bf90904b58522c032b8a3b8fd208264e414cdffa5396f0ea162e25466dc5ddc
SHA512cfe496eb75c6bfeda00f362822d0f39315256f99dd945ae400faaa0f6e254a95b881a54a622625a1129900e5fd1dee49133cb411655d22afdf5985c6d4ef4566
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Filesize
156KB
MD5bfe30ad0c5ba4e0ecbee31340cc78d7e
SHA1f54d7c637c7b9039d378bff4c3d64d927e2750a9
SHA2565bf90904b58522c032b8a3b8fd208264e414cdffa5396f0ea162e25466dc5ddc
SHA512cfe496eb75c6bfeda00f362822d0f39315256f99dd945ae400faaa0f6e254a95b881a54a622625a1129900e5fd1dee49133cb411655d22afdf5985c6d4ef4566
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Filesize
156KB
MD5bfe30ad0c5ba4e0ecbee31340cc78d7e
SHA1f54d7c637c7b9039d378bff4c3d64d927e2750a9
SHA2565bf90904b58522c032b8a3b8fd208264e414cdffa5396f0ea162e25466dc5ddc
SHA512cfe496eb75c6bfeda00f362822d0f39315256f99dd945ae400faaa0f6e254a95b881a54a622625a1129900e5fd1dee49133cb411655d22afdf5985c6d4ef4566