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Analysis
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max time kernel
151s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 23:29
Static task
static1
Behavioral task
behavioral1
Sample
fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe
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Size
140KB
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MD5
f257943ad1dbcbc95a2f87ceab3d1012
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SHA1
0461d3448ea4c613d7a777ed0c8dcf1312165a70
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SHA256
fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4
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SHA512
53c05853f16d5a8b9c3ee183354830478c5b1b15213436b12cea52d089d8443fa4d806d61e86b7c958f58bfe98506d8614f2055e71f8acd8c05a476d9a7a41e7
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SSDEEP
3072:AaL4X3vu3XuIcN6/xbccM3hEL8fyUha5fKSedi:Aao/uuIcNmLX8dhaRTedi
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" fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" wioumu.exe -
Executes dropped EXE 1 IoCs
pid Process 844 wioumu.exe -
Loads dropped DLL 2 IoCs
pid Process 1636 fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe 1636 fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe -
Adds Run key to start application 2 TTPs 50 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /U" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /K" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /v" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /h" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /y" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /g" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /a" wioumu.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /v" fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /B" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /n" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /P" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /D" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /Q" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /O" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /W" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /l" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /E" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /f" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /T" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /H" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /d" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /u" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /s" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /w" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /R" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /Y" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /F" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /I" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /M" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /V" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /x" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /G" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /q" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /c" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /j" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /L" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /i" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /t" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /o" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /b" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /Z" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /J" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /A" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /e" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /k" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /r" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /p" wioumu.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\wioumu = "C:\\Users\\Admin\\wioumu.exe /S" wioumu.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 1636 fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe 844 wioumu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1636 fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe 844 wioumu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1636 wrote to memory of 844 1636 fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe 28 PID 1636 wrote to memory of 844 1636 fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe 28 PID 1636 wrote to memory of 844 1636 fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe 28 PID 1636 wrote to memory of 844 1636 fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.exe"C:\Users\Admin\AppData\Local\Temp\fc1b1d712ec859c27165129bb33773140dfad9928ac3f00e0095e6916e43b7d4.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:1636 -
C:\Users\Admin\wioumu.exe"C:\Users\Admin\wioumu.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:844
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
140KB
MD5a363db05489f045a9cd0bbaf5ae140d5
SHA125ac72666d93ee70e7625173d294af690ce809ae
SHA2563476d192a942aea7f1bce10c9ae34419447ab02486426b42116e9c71423ab1f1
SHA51283e0ec5bcce1df29fd3ee8a43ea00d26c6be34e31cd38902ddf21d0ef6becaf9fa736c33af66eb7a66b34bf444f26d894bdcb57d3d5efb8afa6abf744e2b0883
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Filesize
140KB
MD5a363db05489f045a9cd0bbaf5ae140d5
SHA125ac72666d93ee70e7625173d294af690ce809ae
SHA2563476d192a942aea7f1bce10c9ae34419447ab02486426b42116e9c71423ab1f1
SHA51283e0ec5bcce1df29fd3ee8a43ea00d26c6be34e31cd38902ddf21d0ef6becaf9fa736c33af66eb7a66b34bf444f26d894bdcb57d3d5efb8afa6abf744e2b0883
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Filesize
140KB
MD5a363db05489f045a9cd0bbaf5ae140d5
SHA125ac72666d93ee70e7625173d294af690ce809ae
SHA2563476d192a942aea7f1bce10c9ae34419447ab02486426b42116e9c71423ab1f1
SHA51283e0ec5bcce1df29fd3ee8a43ea00d26c6be34e31cd38902ddf21d0ef6becaf9fa736c33af66eb7a66b34bf444f26d894bdcb57d3d5efb8afa6abf744e2b0883
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Filesize
140KB
MD5a363db05489f045a9cd0bbaf5ae140d5
SHA125ac72666d93ee70e7625173d294af690ce809ae
SHA2563476d192a942aea7f1bce10c9ae34419447ab02486426b42116e9c71423ab1f1
SHA51283e0ec5bcce1df29fd3ee8a43ea00d26c6be34e31cd38902ddf21d0ef6becaf9fa736c33af66eb7a66b34bf444f26d894bdcb57d3d5efb8afa6abf744e2b0883