Analysis
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max time kernel
155s -
max time network
157s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20-10-2022 01:48
Static task
static1
Behavioral task
behavioral1
Sample
7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe
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Size
244KB
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MD5
807bf916f297d31f8dfa3c6ce294aa20
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SHA1
0d583cd5b2469cea9c663630012a1997b842bc15
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SHA256
7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b
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SHA512
ba47c59c5161a9800caf0794113647abc53baa4a7f2fc3a0a1734ad9bc2fad8294f08621a85d48b2a451569967986629ebccd0d05f69bd88d8c949d14591ecac
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SSDEEP
3072:wjvM4AOx/dMcy1imsW7A0g3XDYHYTvZm3ov5Q4/cMIVH5bEvhSSqeLSqnjYIb:q050Fy1imdJgc4s2QRhH5IXV
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cunot.exe -
Executes dropped EXE 1 IoCs
pid Process 5080 cunot.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /j" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /m" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /a" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /l" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /z" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /i" cunot.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /f" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /d" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /w" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /y" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /h" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /p" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /r" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /h" 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /u" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /c" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /o" cunot.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /s" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /q" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /b" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /t" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /x" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /v" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /n" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /e" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /g" cunot.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cunot = "C:\\Users\\Admin\\cunot.exe /k" cunot.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 2276 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 2276 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe 5080 cunot.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2276 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 5080 cunot.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2276 wrote to memory of 5080 2276 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 80 PID 2276 wrote to memory of 5080 2276 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 80 PID 2276 wrote to memory of 5080 2276 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe"C:\Users\Admin\AppData\Local\Temp\7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Users\Admin\cunot.exe"C:\Users\Admin\cunot.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:5080
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
244KB
MD5233f06d0c2717b5cf72edb6bda465db3
SHA1eb21a2dc39b7b1fafc372b715eee9f1cd00d66e6
SHA256dcfd85116bdcf6a4b3a8db12bc0433c828dc61e4987e1671a52c50334572d9c5
SHA512f95afe544680ce6077afcb2dc57ae651b0a7feb5829444d4ab0070b1eed446281d1192cdb7c2e82476169bfc34bc82babf1047d5dd127551e3959aeb7818eee4
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Filesize
244KB
MD5233f06d0c2717b5cf72edb6bda465db3
SHA1eb21a2dc39b7b1fafc372b715eee9f1cd00d66e6
SHA256dcfd85116bdcf6a4b3a8db12bc0433c828dc61e4987e1671a52c50334572d9c5
SHA512f95afe544680ce6077afcb2dc57ae651b0a7feb5829444d4ab0070b1eed446281d1192cdb7c2e82476169bfc34bc82babf1047d5dd127551e3959aeb7818eee4