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Analysis
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max time kernel
152s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 17:02
Static task
static1
Behavioral task
behavioral1
Sample
cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe
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Size
108KB
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MD5
af043140a3fea6487413027b04c8f1f8
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SHA1
c83ef91ccf8a33018f151d44924617eb9c4e876c
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SHA256
cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a
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SHA512
4df3d452a9aea20024498cae09ade2938e1de7d91d20d3358f6a04df48f77b34d12653525c8cc742d901ddf6bdf863060b0085b1721b8ca570ed56348d344afd
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SSDEEP
1536:M6CZKiB6oQ7Lh5+sXmNt0ttJPXLq0zTrkC:7ImoIeZt0XTzToC
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kubuw.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe -
Executes dropped EXE 1 IoCs
pid Process 3660 kubuw.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 cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /w" cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /r" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /b" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /e" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /a" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /m" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /p" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /u" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /n" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /z" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /d" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /v" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /k" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /f" kubuw.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /i" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /h" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /s" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /q" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /t" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /w" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /o" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /j" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /y" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /x" kubuw.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /l" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /g" kubuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kubuw = "C:\\Users\\Admin\\kubuw.exe /c" kubuw.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 2016 cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe 2016 cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe 3660 kubuw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2016 cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe 3660 kubuw.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2016 wrote to memory of 3660 2016 cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe 81 PID 2016 wrote to memory of 3660 2016 cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe 81 PID 2016 wrote to memory of 3660 2016 cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.exe"C:\Users\Admin\AppData\Local\Temp\cba1c4ad11d46e8a54e7ef3a412a0b983f45f30c7907cd2edb8dacfa00a7975a.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:2016 -
C:\Users\Admin\kubuw.exe"C:\Users\Admin\kubuw.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:3660
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
108KB
MD5169e5cf5cb4054b7a4c44ce9dc957d9e
SHA1f727e400a105948bf1ec642cc61ba4cfd667dd27
SHA2563b34484b254037439a31ceeae8fd470e509a9fc09e8b7f1037b6026ffb386bc0
SHA5129c28efbc2ced94cf4bd51822b657854984a38414f8bbfcac685609e67d0fb65a53c6c2a113840d2369052cfd3b15bc807e6646900576379a220b453d73253219
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Filesize
108KB
MD5169e5cf5cb4054b7a4c44ce9dc957d9e
SHA1f727e400a105948bf1ec642cc61ba4cfd667dd27
SHA2563b34484b254037439a31ceeae8fd470e509a9fc09e8b7f1037b6026ffb386bc0
SHA5129c28efbc2ced94cf4bd51822b657854984a38414f8bbfcac685609e67d0fb65a53c6c2a113840d2369052cfd3b15bc807e6646900576379a220b453d73253219