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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
11/10/2022, 20:51
Static task
static1
Behavioral task
behavioral1
Sample
8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe
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Size
180KB
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MD5
64ff7b7610cc497eea80ba3c488e3a93
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SHA1
d075bd5b0b53ffbff999026811b8a786fad01389
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SHA256
8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406
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SHA512
e131df3ac15e50048dde55147b6cef446d1aaa7dd22692c641d62cce855109a660ace892114c148609a43d93a7481fb56764ebb78c0f7a13c7d6348caf2d6291
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SSDEEP
3072:oNcyOTn92EVB9/mHVQ/934fkr5CuT8G+ufJyKujRUN:oNsn92EVre1Q/t4fi5CuT8G+u9
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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ycmiur.exe -
Executes dropped EXE 1 IoCs
pid Process 872 ycmiur.exe -
Loads dropped DLL 2 IoCs
pid Process 1600 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe 1600 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe -
Adds Run key to start application 2 TTPs 57 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /t" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /o" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /m" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /z" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /s" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /w" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /l" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /h" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /y" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /c" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /v" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /p" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /z" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /b" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /d" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /i" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /y" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /o" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /d" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /d" 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /w" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /a" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /h" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /f" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /s" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /j" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /v" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /q" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /m" 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /x" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /t" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /k" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /m" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /a" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /u" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /n" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /l" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /j" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /g" ycmiur.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /k" ycmiur.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /b" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /q" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /g" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /f" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /e" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /p" ycmiur.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /i" ycmiur.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /n" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /c" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /x" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /r" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /u" ycmiur.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ycmiur = "C:\\Users\\Admin\\ycmiur.exe /e" ycmiur.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 1600 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe 872 ycmiur.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1600 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe 872 ycmiur.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1600 wrote to memory of 872 1600 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe 27 PID 1600 wrote to memory of 872 1600 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe 27 PID 1600 wrote to memory of 872 1600 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe 27 PID 1600 wrote to memory of 872 1600 8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.exe"C:\Users\Admin\AppData\Local\Temp\8cc86aaee665cde643872b35d89292ee81c91ae3a11ed794317da6378f318406.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:1600 -
C:\Users\Admin\ycmiur.exe"C:\Users\Admin\ycmiur.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:872
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
180KB
MD57c92eb0aaeb454dcaace552736242479
SHA1c8ecb41b8c27a4638d9ec157905320c1717b8ecd
SHA2563f510249bb959d3608526430b0783a93c74538e526b898e2871b94af13f2859d
SHA5128fa083ecb86baf83248e25e1d1d5cc1eb5d0eb4981e96f6e0b0b33d9060ca385a50870ff0c3832f8a9ad11c538b81929996a429c5e5a5062b5b66dfe7977a026
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Filesize
180KB
MD57c92eb0aaeb454dcaace552736242479
SHA1c8ecb41b8c27a4638d9ec157905320c1717b8ecd
SHA2563f510249bb959d3608526430b0783a93c74538e526b898e2871b94af13f2859d
SHA5128fa083ecb86baf83248e25e1d1d5cc1eb5d0eb4981e96f6e0b0b33d9060ca385a50870ff0c3832f8a9ad11c538b81929996a429c5e5a5062b5b66dfe7977a026
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Filesize
180KB
MD57c92eb0aaeb454dcaace552736242479
SHA1c8ecb41b8c27a4638d9ec157905320c1717b8ecd
SHA2563f510249bb959d3608526430b0783a93c74538e526b898e2871b94af13f2859d
SHA5128fa083ecb86baf83248e25e1d1d5cc1eb5d0eb4981e96f6e0b0b33d9060ca385a50870ff0c3832f8a9ad11c538b81929996a429c5e5a5062b5b66dfe7977a026
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Filesize
180KB
MD57c92eb0aaeb454dcaace552736242479
SHA1c8ecb41b8c27a4638d9ec157905320c1717b8ecd
SHA2563f510249bb959d3608526430b0783a93c74538e526b898e2871b94af13f2859d
SHA5128fa083ecb86baf83248e25e1d1d5cc1eb5d0eb4981e96f6e0b0b33d9060ca385a50870ff0c3832f8a9ad11c538b81929996a429c5e5a5062b5b66dfe7977a026