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Analysis
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max time kernel
151s -
max time network
100s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
04/12/2022, 07:47
Static task
static1
Behavioral task
behavioral1
Sample
9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe
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Size
132KB
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MD5
f9734ebce9d2d3b228f3c12ff13df3fb
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SHA1
b3055825fafe264d1649882098251a925515516b
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SHA256
9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63
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SHA512
767592c9e043829ead65b380436253ce61e91fb6a619fca8ee6040fcb50ace2f7e31e0692dbbb71323af7de0fe518b074b88a09c7f9390d1d8f911c85f6cff5a
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SSDEEP
3072:qanf/L6NUf6VRlxzhPak8LXo46sBizhUe:D/LiUSVPxNPaLLXoNii6e
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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe Set value (int) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" koiol.exe -
Executes dropped EXE 1 IoCs
pid Process 1892 koiol.exe -
Loads dropped DLL 2 IoCs
pid Process 884 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe 884 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe -
Adds Run key to start application 2 TTPs 47 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /f" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /d" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /k" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /Q" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /O" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /x" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /T" 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /Z" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /r" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /S" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /s" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /F" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /W" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /R" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /A" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /a" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /C" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /l" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /c" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /i" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /T" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /w" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /o" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /v" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /D" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /P" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /g" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /M" koiol.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /X" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /b" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /B" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /h" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /E" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /L" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /p" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /y" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /J" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /K" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /Y" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /q" koiol.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\ koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /N" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /t" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /H" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /u" koiol.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\koiol = "C:\\Users\\Admin\\koiol.exe /j" koiol.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 884 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe 1892 koiol.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 884 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe 1892 koiol.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 884 wrote to memory of 1892 884 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe 27 PID 884 wrote to memory of 1892 884 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe 27 PID 884 wrote to memory of 1892 884 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe 27 PID 884 wrote to memory of 1892 884 9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.exe"C:\Users\Admin\AppData\Local\Temp\9604f734530c6f1b42d49bd2552da2fb3478b546e244973cf59df47aae4a5c63.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:884 -
C:\Users\Admin\koiol.exe"C:\Users\Admin\koiol.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:1892
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
132KB
MD53e6cc58e08adb1ab4a0011957fc1c87c
SHA1b73f9598d235a127796c11f157fcad1952d76507
SHA256d332b5cf9916dfc5a155a46aa489859a0151ed36b4a7713820bab1263237ce5b
SHA512216465b042091eb6ff0a6049f474a12e6b43cf80955383ecb534baf5bd4f7bf95248f085ad759dfafecaaf43a864e92df20296ffd3a14b3e1c6dad80c2eecc53
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Filesize
132KB
MD53e6cc58e08adb1ab4a0011957fc1c87c
SHA1b73f9598d235a127796c11f157fcad1952d76507
SHA256d332b5cf9916dfc5a155a46aa489859a0151ed36b4a7713820bab1263237ce5b
SHA512216465b042091eb6ff0a6049f474a12e6b43cf80955383ecb534baf5bd4f7bf95248f085ad759dfafecaaf43a864e92df20296ffd3a14b3e1c6dad80c2eecc53
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Filesize
132KB
MD53e6cc58e08adb1ab4a0011957fc1c87c
SHA1b73f9598d235a127796c11f157fcad1952d76507
SHA256d332b5cf9916dfc5a155a46aa489859a0151ed36b4a7713820bab1263237ce5b
SHA512216465b042091eb6ff0a6049f474a12e6b43cf80955383ecb534baf5bd4f7bf95248f085ad759dfafecaaf43a864e92df20296ffd3a14b3e1c6dad80c2eecc53
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Filesize
132KB
MD53e6cc58e08adb1ab4a0011957fc1c87c
SHA1b73f9598d235a127796c11f157fcad1952d76507
SHA256d332b5cf9916dfc5a155a46aa489859a0151ed36b4a7713820bab1263237ce5b
SHA512216465b042091eb6ff0a6049f474a12e6b43cf80955383ecb534baf5bd4f7bf95248f085ad759dfafecaaf43a864e92df20296ffd3a14b3e1c6dad80c2eecc53