Analysis
- max time kernel
150s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
18/10/2022, 08:40
Static task
static1
Behavioral task
behavioral1
Sample
4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe
- Size 200KB
- Sample221018-kk1kbsfbd5
- SHA256 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de
- MD5 56d7204149638b801d4f0a2ed74b9bcd
- SHA1 8184b75a8a882ee9eddd325ed376bb50c76edf26
- SHA512 9981d967650b26d65f93774109bf9895c34c06b401aadfd8d75b8bc99343c38b0fb9530eb57eb25c440b7d9edaa082c331c6be2487e84142424f57d8cc082906
- SSDEEP 3072:9CuTo/0Yx40tQ9nLHbB9WPliBs2HWWEakGJm9lb:9C3q4QxL7B9WPli+yWWEazg
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" wiicoak.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe - Executes dropped EXE 1 IoCs
pid Process 4968 wiicoak.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe - Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /q" 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /l" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /k" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /j" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /a" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /u" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /x" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /c" wiicoak.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /d" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /b" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /g" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /v" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /n" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /f" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /z" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /w" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /h" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /t" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /i" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /y" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /r" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /q" wiicoak.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /e" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /o" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /p" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /m" wiicoak.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiicoak = "C:\\Users\\Admin\\wiicoak.exe /s" wiicoak.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1956 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe 1956 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe 4968 wiicoak.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1956 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe 4968 wiicoak.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1956 wrote to memory of 4968 1956 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe 85 PID 1956 wrote to memory of 4968 1956 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe 85 PID 1956 wrote to memory of 4968 1956 4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.exe"C:\Users\Admin\AppData\Local\Temp\4a8fb132ada5d97d6996a23c2ba078bde46aad2007a208b45a6179e1fc5520de.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:1956 -
C:\Users\Admin\wiicoak.exe"C:\Users\Admin\wiicoak.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:4968
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\wiicoak.exe
- Size 200KB
- SHA256 0bc81bf1d2f64d1edd6eceead4bfe222bd8bd505e5f66a309400e12d411c5162
- MD5 0f7904e53cac83c908201188343521e2
- SHA1 e93a0c80c2097bd9bd4759ef67240e997bc79547
- SHA512 f19bddd4451ce0dcf21418634d8c964aef45d7328140b3dbdbe3cc7e8965ee15a118818b30866a51b640f6bb5d8b6cbfeaa7caeda8be5dc1ff6ccb4f33737e08
- SSDEEP 3072:WCETo/0Yx/S0tQ9nLHbB9WPliBs2HWWEakGJm92s:WCJE4QxL7B9WPli+yWWEazM
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\wiicoak.exe
- Size 200KB
- SHA256 0bc81bf1d2f64d1edd6eceead4bfe222bd8bd505e5f66a309400e12d411c5162
- MD5 0f7904e53cac83c908201188343521e2
- SHA1 e93a0c80c2097bd9bd4759ef67240e997bc79547
- SHA512 f19bddd4451ce0dcf21418634d8c964aef45d7328140b3dbdbe3cc7e8965ee15a118818b30866a51b640f6bb5d8b6cbfeaa7caeda8be5dc1ff6ccb4f33737e08
- SSDEEP 3072:WCETo/0Yx/S0tQ9nLHbB9WPliBs2HWWEakGJm92s:WCJE4QxL7B9WPli+yWWEazM
- MD5 SHA1 SHA512 SSDEEP