Analysis
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max time kernel
150s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
12-10-2022 14:04
Static task
static1
Behavioral task
behavioral1
Sample
50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe
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Size
196KB
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MD5
7bb51680e2c69548ecdef6e325871010
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SHA1
aecd5d553177010b6a31411eebef0e9f3a4b04d3
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SHA256
50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff
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SHA512
86dd52623d4ef424cd58de40a34c41b14ac895f0731822759be615a2fde91b76be1f0c6f183bb731027f883cbcd6b043af73828940552f3392f3cb3b7aca4837
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SSDEEP
6144:VuvuUPH3bX2a23NYcJQ8TfxZ85WJ007G9tSBN70ZfA:8vuUPH3bX2a23NYcJQ8TfxZ9J0rtSzQO
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" yaiihi.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe -
Executes dropped EXE 1 IoCs
pid Process 276 yaiihi.exe -
Loads dropped DLL 2 IoCs
pid Process 1492 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe 1492 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /b" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /s" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /G" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /C" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /m" 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /P" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /m" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /d" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /h" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /Z" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /z" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /Q" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /u" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /p" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /n" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /q" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /H" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /T" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /v" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /k" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /c" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /I" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /x" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /B" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /V" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /f" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /r" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /l" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /K" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /R" yaiihi.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /e" yaiihi.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /W" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /J" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /S" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /A" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /a" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /L" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /t" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /j" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /g" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /E" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /U" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /M" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /w" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /Y" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /y" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /F" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /D" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /N" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /X" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /i" yaiihi.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yaiihi = "C:\\Users\\Admin\\yaiihi.exe /o" yaiihi.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 1492 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe 276 yaiihi.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1492 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe 276 yaiihi.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1492 wrote to memory of 276 1492 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe 27 PID 1492 wrote to memory of 276 1492 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe 27 PID 1492 wrote to memory of 276 1492 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe 27 PID 1492 wrote to memory of 276 1492 50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.exe"C:\Users\Admin\AppData\Local\Temp\50cce3616f588cb8eec4b98754ea33523ee1e8242ab607b188cbd45f0383dcff.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:1492 -
C:\Users\Admin\yaiihi.exe"C:\Users\Admin\yaiihi.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:276
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
196KB
MD55cb60a28c0bd6a330e8f93100af8870c
SHA1335ece976937768a1756baaacb6f4e76805b6da7
SHA25610e26bc773c4de3b08f33dc7641b3a8bdf98a9a8cc163a9498856a868e61580b
SHA5129edff5f8b0313a21fb0dccc969081d485f8ce90ea3b1c6dbf905d0e944b345cb2a291fe095be424e434f52be5984cf82b5095f421d556191b7137f83367037c5
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Filesize
196KB
MD55cb60a28c0bd6a330e8f93100af8870c
SHA1335ece976937768a1756baaacb6f4e76805b6da7
SHA25610e26bc773c4de3b08f33dc7641b3a8bdf98a9a8cc163a9498856a868e61580b
SHA5129edff5f8b0313a21fb0dccc969081d485f8ce90ea3b1c6dbf905d0e944b345cb2a291fe095be424e434f52be5984cf82b5095f421d556191b7137f83367037c5
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Filesize
196KB
MD55cb60a28c0bd6a330e8f93100af8870c
SHA1335ece976937768a1756baaacb6f4e76805b6da7
SHA25610e26bc773c4de3b08f33dc7641b3a8bdf98a9a8cc163a9498856a868e61580b
SHA5129edff5f8b0313a21fb0dccc969081d485f8ce90ea3b1c6dbf905d0e944b345cb2a291fe095be424e434f52be5984cf82b5095f421d556191b7137f83367037c5
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Filesize
196KB
MD55cb60a28c0bd6a330e8f93100af8870c
SHA1335ece976937768a1756baaacb6f4e76805b6da7
SHA25610e26bc773c4de3b08f33dc7641b3a8bdf98a9a8cc163a9498856a868e61580b
SHA5129edff5f8b0313a21fb0dccc969081d485f8ce90ea3b1c6dbf905d0e944b345cb2a291fe095be424e434f52be5984cf82b5095f421d556191b7137f83367037c5