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Analysis
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max time kernel
152s -
max time network
47s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 09:16
Static task
static1
Behavioral task
behavioral1
Sample
dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe
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Size
312KB
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MD5
225781f7bf59c7f0bcd643a9984bdee3
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SHA1
034ceb777791bb3764908f8317ff29464b1e0701
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SHA256
dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b
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SHA512
4e4e40940277b039d4fe0fdfbaa4388b9ffea7272a5f781308a29a6d5cdfba5034b7fab6b4e4c6928a33a75f49c4fbb52e093a2a0d83f0eb36cff42dd989e66b
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SSDEEP
6144:Bwc+PaJXYd9hxr51WxWHdzvprYZPpYUQ3m1zBdP7F1:/XYd9hxrrYWhvpEZPKr3m1z3Z1
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" yuojea.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe -
Executes dropped EXE 1 IoCs
pid Process 1776 yuojea.exe -
Loads dropped DLL 2 IoCs
pid Process 1184 dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe 1184 dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /u" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /D" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /Q" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /l" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /i" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /e" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /v" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /Y" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /W" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /X" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /M" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /p" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /r" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /n" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /Z" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /t" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /c" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /L" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /R" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /d" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /A" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /S" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /m" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /P" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /w" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /h" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /s" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /q" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /a" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /T" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /V" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /H" yuojea.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /f" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /j" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /B" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /y" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /G" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /b" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /E" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /F" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /O" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /J" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /C" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /o" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /g" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /N" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /W" dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /k" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /x" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /K" yuojea.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\yuojea = "C:\\Users\\Admin\\yuojea.exe /U" yuojea.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 dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe 1776 yuojea.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1184 dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe 1776 yuojea.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1184 wrote to memory of 1776 1184 dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe 26 PID 1184 wrote to memory of 1776 1184 dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe 26 PID 1184 wrote to memory of 1776 1184 dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe 26 PID 1184 wrote to memory of 1776 1184 dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe"C:\Users\Admin\AppData\Local\Temp\dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.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:1184 -
C:\Users\Admin\yuojea.exe"C:\Users\Admin\yuojea.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:1776
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
312KB
MD5efb394bdd87c07020149f21fe3519416
SHA1af978111d07979005121ad32bf676cf836080930
SHA25693862c9e35b34b2b13ac3631049fb3c83f5017eb16476cc103f9ddc06284066c
SHA51231ac19bb94aab6e9d44aa547711fd41ac8b9ca16d4d089c61097da13ec6bbdd9a64d38e8e723e67d83b9d8e5328399ea87bf0f57c75a89bbd23adcb1d05a68da
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Filesize
312KB
MD5efb394bdd87c07020149f21fe3519416
SHA1af978111d07979005121ad32bf676cf836080930
SHA25693862c9e35b34b2b13ac3631049fb3c83f5017eb16476cc103f9ddc06284066c
SHA51231ac19bb94aab6e9d44aa547711fd41ac8b9ca16d4d089c61097da13ec6bbdd9a64d38e8e723e67d83b9d8e5328399ea87bf0f57c75a89bbd23adcb1d05a68da
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Filesize
312KB
MD5efb394bdd87c07020149f21fe3519416
SHA1af978111d07979005121ad32bf676cf836080930
SHA25693862c9e35b34b2b13ac3631049fb3c83f5017eb16476cc103f9ddc06284066c
SHA51231ac19bb94aab6e9d44aa547711fd41ac8b9ca16d4d089c61097da13ec6bbdd9a64d38e8e723e67d83b9d8e5328399ea87bf0f57c75a89bbd23adcb1d05a68da
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Filesize
312KB
MD5efb394bdd87c07020149f21fe3519416
SHA1af978111d07979005121ad32bf676cf836080930
SHA25693862c9e35b34b2b13ac3631049fb3c83f5017eb16476cc103f9ddc06284066c
SHA51231ac19bb94aab6e9d44aa547711fd41ac8b9ca16d4d089c61097da13ec6bbdd9a64d38e8e723e67d83b9d8e5328399ea87bf0f57c75a89bbd23adcb1d05a68da