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
03/12/2022, 19:33
Static task
static1
Behavioral task
behavioral1
Sample
97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe
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Size
188KB
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MD5
a03755428d230d635467aeb3d0d25ba9
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SHA1
2a8c414d2b7c2af61c4ea459bf69320d6f3292a8
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SHA256
97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0
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SHA512
40ee00b2ecec2f01385aa83adac1f1f922ee5b2a5731f32d09d49beaa9fb8038f3a1179b8ccd778c1c3a3fd173ad4651ad98f5265e536d02da5f2111ec2ed4ae
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SSDEEP
3072:ncJc642DZCv8yapZIvcFeqoSeaX/m7bfTWan9LxJ8DJOpPVKuqmqTgwb9MTXK6S3:WcsZCvzWevcFe/aX/m7bfTWan9lJ8DJv
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" 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" koowij.exe -
Executes dropped EXE 1 IoCs
pid Process 1720 koowij.exe -
Loads dropped DLL 2 IoCs
pid Process 2012 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe 2012 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /Q" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /A" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /N" 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /e" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /P" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /E" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /k" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /p" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /f" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /M" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /b" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /t" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /v" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /m" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /q" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /r" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /K" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /C" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /i" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /S" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /j" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /N" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /z" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /h" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /s" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /X" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /Z" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /R" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /I" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /o" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /x" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /H" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /l" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /V" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /B" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /Y" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /g" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /U" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /W" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /u" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /n" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /L" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /c" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /F" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /y" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /a" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /D" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /O" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /J" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /G" koowij.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koowij = "C:\\Users\\Admin\\koowij.exe /T" koowij.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ koowij.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 2012 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe 1720 koowij.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2012 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe 1720 koowij.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2012 wrote to memory of 1720 2012 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe 27 PID 2012 wrote to memory of 1720 2012 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe 27 PID 2012 wrote to memory of 1720 2012 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe 27 PID 2012 wrote to memory of 1720 2012 97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.exe"C:\Users\Admin\AppData\Local\Temp\97bb900e434c7b8a5f500aef83b54dee9c5099fdfe974ab9578e7d0496a0cdd0.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:2012 -
C:\Users\Admin\koowij.exe"C:\Users\Admin\koowij.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:1720
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
188KB
MD50a61ff1e3a07f411ba0ce9f987c0c6ed
SHA120d836f580c1ea17d2b34a1298001ab3c9eca5af
SHA25617d5edf6a7a572ed20fbbbb60c46173abec4218c846d5005cef3a3ec8447c2f0
SHA512cbcf9edc01fd56dc727511fab2404424958c14eb77c11b7be2799de17340e954dbf8f183889ea61edbedd7270238add19b137cddd8e1f95d0ce1a009201fa1e2
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Filesize
188KB
MD50a61ff1e3a07f411ba0ce9f987c0c6ed
SHA120d836f580c1ea17d2b34a1298001ab3c9eca5af
SHA25617d5edf6a7a572ed20fbbbb60c46173abec4218c846d5005cef3a3ec8447c2f0
SHA512cbcf9edc01fd56dc727511fab2404424958c14eb77c11b7be2799de17340e954dbf8f183889ea61edbedd7270238add19b137cddd8e1f95d0ce1a009201fa1e2
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Filesize
188KB
MD50a61ff1e3a07f411ba0ce9f987c0c6ed
SHA120d836f580c1ea17d2b34a1298001ab3c9eca5af
SHA25617d5edf6a7a572ed20fbbbb60c46173abec4218c846d5005cef3a3ec8447c2f0
SHA512cbcf9edc01fd56dc727511fab2404424958c14eb77c11b7be2799de17340e954dbf8f183889ea61edbedd7270238add19b137cddd8e1f95d0ce1a009201fa1e2
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Filesize
188KB
MD50a61ff1e3a07f411ba0ce9f987c0c6ed
SHA120d836f580c1ea17d2b34a1298001ab3c9eca5af
SHA25617d5edf6a7a572ed20fbbbb60c46173abec4218c846d5005cef3a3ec8447c2f0
SHA512cbcf9edc01fd56dc727511fab2404424958c14eb77c11b7be2799de17340e954dbf8f183889ea61edbedd7270238add19b137cddd8e1f95d0ce1a009201fa1e2