Analysis
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max time kernel
150s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
04/10/2022, 03:44
Static task
static1
Behavioral task
behavioral1
Sample
f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe
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Size
204KB
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MD5
55d821ec1d96bd2936b346ac2a5ebd2f
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SHA1
6077cb6699d5037b0f695eec631123c1ea18ed90
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SHA256
f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22
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SHA512
1a4e6f19b2f06b6b9b2b96e72d3cc6d4b48c0faecf75e16dffdd526480b0cc5315a5959e69de7b5f847331deb172bbf61fc8f0f6ff2fc6b7126f16db5b1a6816
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SSDEEP
3072:DmOW8oH0tQ9nLHbB9W0c1TqECzR/mkSYGrl9ymgYUWYyh:izR4QxL7B9W0c1RCzR/fSmlbU
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" f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" koipie.exe -
Executes dropped EXE 1 IoCs
pid Process 1900 koipie.exe -
Loads dropped DLL 2 IoCs
pid Process 1768 f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe 1768 f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /g" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /c" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /s" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /f" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /z" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /y" koipie.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /w" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /q" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /j" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /k" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /d" koipie.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /x" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /l" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /i" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /u" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /e" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /t" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /r" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /a" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /p" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /v" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /h" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /b" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /t" f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /o" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /m" koipie.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\koipie = "C:\\Users\\Admin\\koipie.exe /n" koipie.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 1768 f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe 1900 koipie.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1768 f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe 1900 koipie.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1768 wrote to memory of 1900 1768 f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe 27 PID 1768 wrote to memory of 1900 1768 f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe 27 PID 1768 wrote to memory of 1900 1768 f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe 27 PID 1768 wrote to memory of 1900 1768 f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.exe"C:\Users\Admin\AppData\Local\Temp\f78f8ca81fc073c4d81b1c0db3b17113de921affb05ff0cc73f179e97e3f8c22.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:1768 -
C:\Users\Admin\koipie.exe"C:\Users\Admin\koipie.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:1900
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
204KB
MD5b556875a798f7e8e90375dfbf68f02c2
SHA190f9ca813d0a467cbf1b45acf8a77d3c615dc81a
SHA25670c4e87a49ba40bd17393c9067dbfb599cd7b939b155a1982e1270cc57bde4b4
SHA5128214b27ca227da23c60b64f1a7d85d32ae583b7a64efb27848e625568f3ba0e8d97e1184069a811ba4e7da2f378181853adab0018f96cbe48ed913a610e09dc1
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Filesize
204KB
MD5b556875a798f7e8e90375dfbf68f02c2
SHA190f9ca813d0a467cbf1b45acf8a77d3c615dc81a
SHA25670c4e87a49ba40bd17393c9067dbfb599cd7b939b155a1982e1270cc57bde4b4
SHA5128214b27ca227da23c60b64f1a7d85d32ae583b7a64efb27848e625568f3ba0e8d97e1184069a811ba4e7da2f378181853adab0018f96cbe48ed913a610e09dc1
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Filesize
204KB
MD5b556875a798f7e8e90375dfbf68f02c2
SHA190f9ca813d0a467cbf1b45acf8a77d3c615dc81a
SHA25670c4e87a49ba40bd17393c9067dbfb599cd7b939b155a1982e1270cc57bde4b4
SHA5128214b27ca227da23c60b64f1a7d85d32ae583b7a64efb27848e625568f3ba0e8d97e1184069a811ba4e7da2f378181853adab0018f96cbe48ed913a610e09dc1
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Filesize
204KB
MD5b556875a798f7e8e90375dfbf68f02c2
SHA190f9ca813d0a467cbf1b45acf8a77d3c615dc81a
SHA25670c4e87a49ba40bd17393c9067dbfb599cd7b939b155a1982e1270cc57bde4b4
SHA5128214b27ca227da23c60b64f1a7d85d32ae583b7a64efb27848e625568f3ba0e8d97e1184069a811ba4e7da2f378181853adab0018f96cbe48ed913a610e09dc1