Analysis
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max time kernel
151s -
max time network
70s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01/12/2022, 23:28
Static task
static1
Behavioral task
behavioral1
Sample
3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe
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Size
240KB
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MD5
77610120af2831df106660d4e624520a
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SHA1
5b584c86e354841aeda09fc66146922db2aa64c9
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SHA256
3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3
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SHA512
1b9eac29d30d8ecedea70086d2cc95e677f50f78c0d64202f68e39538bb6c7a65ec0905e886badbb4b3e2674292933488a4390e3c31042c2a0a43e7c4b9e557e
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SSDEEP
6144:MUz3dwqsNwemAB0EqxF6snji81RUinKchhyhSQL:LdQQJsYw
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yvgux.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe -
Executes dropped EXE 1 IoCs
pid Process 1044 yvgux.exe -
Loads dropped DLL 2 IoCs
pid Process 756 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe 756 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe -
Adds Run key to start application 2 TTPs 28 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /a" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /f" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /t" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /k" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /s" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /c" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /x" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /i" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /p" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /y" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /m" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /w" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /u" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /j" 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /g" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /h" yvgux.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /v" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /d" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /e" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /j" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /q" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /n" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /b" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /z" yvgux.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /l" yvgux.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yvgux = "C:\\Users\\Admin\\yvgux.exe /o" yvgux.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 756 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe 1044 yvgux.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 756 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe 1044 yvgux.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 756 wrote to memory of 1044 756 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe 27 PID 756 wrote to memory of 1044 756 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe 27 PID 756 wrote to memory of 1044 756 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe 27 PID 756 wrote to memory of 1044 756 3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.exe"C:\Users\Admin\AppData\Local\Temp\3377666673742cc76c01ac8b964ac700fc67c61990992ca6bf14a22443daace3.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:756 -
C:\Users\Admin\yvgux.exe"C:\Users\Admin\yvgux.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:1044
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
240KB
MD53d89532052ed193cc84b97e0f4c6741a
SHA1de256f2016b53dd3756ad57b1a776172626c3b28
SHA25697fe53ee43e279311d80ffb3fad6914ac16573a802474a9aac4e024c34f2057c
SHA51212bedd8220b619ff50d6cab283f78d81c8482d7bc983e06aee3449b93407f6d4c7d586e9b1b201429dfce0c764a6cd7a98837b33ed9d3e6a538bd688599be2c0
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Filesize
240KB
MD53d89532052ed193cc84b97e0f4c6741a
SHA1de256f2016b53dd3756ad57b1a776172626c3b28
SHA25697fe53ee43e279311d80ffb3fad6914ac16573a802474a9aac4e024c34f2057c
SHA51212bedd8220b619ff50d6cab283f78d81c8482d7bc983e06aee3449b93407f6d4c7d586e9b1b201429dfce0c764a6cd7a98837b33ed9d3e6a538bd688599be2c0
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Filesize
240KB
MD53d89532052ed193cc84b97e0f4c6741a
SHA1de256f2016b53dd3756ad57b1a776172626c3b28
SHA25697fe53ee43e279311d80ffb3fad6914ac16573a802474a9aac4e024c34f2057c
SHA51212bedd8220b619ff50d6cab283f78d81c8482d7bc983e06aee3449b93407f6d4c7d586e9b1b201429dfce0c764a6cd7a98837b33ed9d3e6a538bd688599be2c0
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Filesize
240KB
MD53d89532052ed193cc84b97e0f4c6741a
SHA1de256f2016b53dd3756ad57b1a776172626c3b28
SHA25697fe53ee43e279311d80ffb3fad6914ac16573a802474a9aac4e024c34f2057c
SHA51212bedd8220b619ff50d6cab283f78d81c8482d7bc983e06aee3449b93407f6d4c7d586e9b1b201429dfce0c764a6cd7a98837b33ed9d3e6a538bd688599be2c0