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Analysis
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max time kernel
151s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07/12/2022, 03:25
Static task
static1
Behavioral task
behavioral1
Sample
6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe
Resource
win7-20220812-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe
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Size
240KB
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MD5
7f726924364cbe16c92e101152fec689
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SHA1
62725109e2272171ddaebdd28ebdac0ddaffc24f
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SHA256
6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0
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SHA512
4da97119ab09ba4628dd278671b5ff7dbccc99ea915c27a9b52d039b3d75944de3208025a020177e582a2f12c320253ebf43724b0d9cd777ba6fe1e44a800dcf
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SSDEEP
6144:1KQgHH0e5CxdPQZUNoV13q0al0svKJnRVeGDzFmvxyxF:11e5CxdPQZUNoV13q0a+svYEc/
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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" biuuxon.exe -
Executes dropped EXE 1 IoCs
pid Process 1776 biuuxon.exe -
Loads dropped DLL 2 IoCs
pid Process 1184 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe 1184 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /b" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /s" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /y" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /x" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /g" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /j" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /m" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /p" 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /r" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /z" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /n" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /c" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /p" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /h" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /q" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /k" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /t" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /d" biuuxon.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /f" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /w" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /i" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /u" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /l" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /a" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /e" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /v" biuuxon.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\biuuxon = "C:\\Users\\Admin\\biuuxon.exe /o" biuuxon.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 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum biuuxon.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 biuuxon.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 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe 1776 biuuxon.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1184 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe 1776 biuuxon.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1184 wrote to memory of 1776 1184 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe 26 PID 1184 wrote to memory of 1776 1184 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe 26 PID 1184 wrote to memory of 1776 1184 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe 26 PID 1184 wrote to memory of 1776 1184 6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe"C:\Users\Admin\AppData\Local\Temp\6570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1184 -
C:\Users\Admin\biuuxon.exe"C:\Users\Admin\biuuxon.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:1776
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
240KB
MD57f726924364cbe16c92e101152fec689
SHA162725109e2272171ddaebdd28ebdac0ddaffc24f
SHA2566570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0
SHA5124da97119ab09ba4628dd278671b5ff7dbccc99ea915c27a9b52d039b3d75944de3208025a020177e582a2f12c320253ebf43724b0d9cd777ba6fe1e44a800dcf
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Filesize
240KB
MD57f726924364cbe16c92e101152fec689
SHA162725109e2272171ddaebdd28ebdac0ddaffc24f
SHA2566570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0
SHA5124da97119ab09ba4628dd278671b5ff7dbccc99ea915c27a9b52d039b3d75944de3208025a020177e582a2f12c320253ebf43724b0d9cd777ba6fe1e44a800dcf
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Filesize
240KB
MD57f726924364cbe16c92e101152fec689
SHA162725109e2272171ddaebdd28ebdac0ddaffc24f
SHA2566570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0
SHA5124da97119ab09ba4628dd278671b5ff7dbccc99ea915c27a9b52d039b3d75944de3208025a020177e582a2f12c320253ebf43724b0d9cd777ba6fe1e44a800dcf
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Filesize
240KB
MD57f726924364cbe16c92e101152fec689
SHA162725109e2272171ddaebdd28ebdac0ddaffc24f
SHA2566570e58b98a99681b0d79f81086148afa146f70ff1133ae9d3209a2ffb2a33a0
SHA5124da97119ab09ba4628dd278671b5ff7dbccc99ea915c27a9b52d039b3d75944de3208025a020177e582a2f12c320253ebf43724b0d9cd777ba6fe1e44a800dcf