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Analysis
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max time kernel
151s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03/12/2022, 05:04
Static task
static1
Behavioral task
behavioral1
Sample
a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe
Resource
win7-20220901-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe
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Size
96KB
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MD5
9bf013b618fff78ef8a428d3dbdc16c0
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SHA1
d15d88e5a4945a5ad64739865e6c012c2e6ea976
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SHA256
a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be
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SHA512
f2ba5ed283fe20cc5f2b7ec10cfceb9284341ed379a5eda3428bc1f655b17b7e2f41a8a0c9a28218cecd3193c08328911749b53c8d26ba6332c6b8bf7185a763
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SSDEEP
1536:0O6/l1TwFJW1p++yX43zRKLD8tocP5OaH6QfUHkwrEVnLJX+I+ojQKAd9dCEG:W/HGOpfyX43gkh5d6QfUH9EVnZ1jQKAS
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" a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" wnkaaw.exe -
Executes dropped EXE 2 IoCs
pid Process 3524 wnkaaw.exe 2332 wnkaaw.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 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.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\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /d" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /l" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /w" a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /m" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /b" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /f" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /u" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /g" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /v" wnkaaw.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /e" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /a" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /t" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /s" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /k" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /y" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /c" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /p" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /o" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /z" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /h" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /q" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /x" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /j" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /n" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /r" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /i" wnkaaw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wnkaaw = "C:\\Users\\Admin\\wnkaaw.exe /w" wnkaaw.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 wnkaaw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum wnkaaw.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf wnkaaw.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5060 set thread context of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 3524 set thread context of 2332 3524 wnkaaw.exe 83 -
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 2308 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 2308 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe 2332 wnkaaw.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 2308 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 3524 wnkaaw.exe 2332 wnkaaw.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 5060 wrote to memory of 2308 5060 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 81 PID 2308 wrote to memory of 3524 2308 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 82 PID 2308 wrote to memory of 3524 2308 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 82 PID 2308 wrote to memory of 3524 2308 a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe 82 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83 PID 3524 wrote to memory of 2332 3524 wnkaaw.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe"C:\Users\Admin\AppData\Local\Temp\a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5060 -
C:\Users\Admin\AppData\Local\Temp\a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be.exe742⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2308 -
C:\Users\Admin\wnkaaw.exe"C:\Users\Admin\wnkaaw.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3524 -
C:\Users\Admin\wnkaaw.exe744⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2332
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
96KB
MD59bf013b618fff78ef8a428d3dbdc16c0
SHA1d15d88e5a4945a5ad64739865e6c012c2e6ea976
SHA256a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be
SHA512f2ba5ed283fe20cc5f2b7ec10cfceb9284341ed379a5eda3428bc1f655b17b7e2f41a8a0c9a28218cecd3193c08328911749b53c8d26ba6332c6b8bf7185a763
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Filesize
96KB
MD59bf013b618fff78ef8a428d3dbdc16c0
SHA1d15d88e5a4945a5ad64739865e6c012c2e6ea976
SHA256a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be
SHA512f2ba5ed283fe20cc5f2b7ec10cfceb9284341ed379a5eda3428bc1f655b17b7e2f41a8a0c9a28218cecd3193c08328911749b53c8d26ba6332c6b8bf7185a763
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Filesize
96KB
MD59bf013b618fff78ef8a428d3dbdc16c0
SHA1d15d88e5a4945a5ad64739865e6c012c2e6ea976
SHA256a06bf3c634d163fb9af4fa16a2573bf204cc5d37f395d9c333fd0d1503e021be
SHA512f2ba5ed283fe20cc5f2b7ec10cfceb9284341ed379a5eda3428bc1f655b17b7e2f41a8a0c9a28218cecd3193c08328911749b53c8d26ba6332c6b8bf7185a763