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Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2022, 20:08
Static task
static1
Behavioral task
behavioral1
Sample
d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe
Resource
win10v2004-20220901-en
General
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Target
d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe
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Size
104KB
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MD5
4ddf295a86e5dbf0cac5151960f971bc
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SHA1
640c97619f38e619e6eb77f4c5c7daeb8341fd3e
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SHA256
d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f
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SHA512
f3443cf4d61fc84195fdbc5a9b5e77f22bfc1465a0ded02b2ea077d04bc0c4c90c8d7f8f908e4320d5d1e53d91c2c2d8f4cae4280d4f4bb3f02b662646c33e5b
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SSDEEP
1536:waLRvx+uTs+HBchhQKNIqpOcQv0sTEFSocwB+XjLlm:zK+eiKNZJQv0sToB+3s
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cuhoq.exe -
Executes dropped EXE 1 IoCs
pid Process 4576 cuhoq.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe -
Adds Run key to start application 2 TTPs 19 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /d" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /t" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /u" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /o" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /a" d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /q" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /w" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /a" cuhoq.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /h" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /b" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /i" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /f" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /z" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /x" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /y" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /k" cuhoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cuhoq = "C:\\Users\\Admin\\cuhoq.exe /c" cuhoq.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 52 IoCs
pid Process 3012 d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe 3012 d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe 4576 cuhoq.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3012 d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe 4576 cuhoq.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3012 wrote to memory of 4576 3012 d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe 92 PID 3012 wrote to memory of 4576 3012 d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe 92 PID 3012 wrote to memory of 4576 3012 d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.exe"C:\Users\Admin\AppData\Local\Temp\d0a2cd7178138c2a20b505ea75957f8bcad9b768701a56f3e611f3fdc67aca1f.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:3012 -
C:\Users\Admin\cuhoq.exe"C:\Users\Admin\cuhoq.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:4576
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
104KB
MD5ea8362f45d4da115d18e7b89e5d3a248
SHA1b93cd751c795e282b41cde2a8d8af3724e6e8a16
SHA256879bf252ea233ebe14625af48f82b982e3c28821ca12205ebbeb43583bce8226
SHA5123328c3f8c7404198feb72d138147f159f2d402a794e3348d745ed7bbad445b7e89a739b58dee86711ecbf315967a5de66c71c2305e4f415f2f177e0920273153
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Filesize
104KB
MD5ea8362f45d4da115d18e7b89e5d3a248
SHA1b93cd751c795e282b41cde2a8d8af3724e6e8a16
SHA256879bf252ea233ebe14625af48f82b982e3c28821ca12205ebbeb43583bce8226
SHA5123328c3f8c7404198feb72d138147f159f2d402a794e3348d745ed7bbad445b7e89a739b58dee86711ecbf315967a5de66c71c2305e4f415f2f177e0920273153