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Analysis
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max time kernel
186s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
14/10/2023, 18:05
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
NEAS.8fbdebbda4b82495cea9f98cae846760.exe
Resource
win7-20230831-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
NEAS.8fbdebbda4b82495cea9f98cae846760.exe
Resource
win10v2004-20230915-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
NEAS.8fbdebbda4b82495cea9f98cae846760.exe
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Size
204KB
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MD5
8fbdebbda4b82495cea9f98cae846760
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SHA1
983b70886f4a39ccefae72c006afa4c0820fcefe
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SHA256
5f8900aec85fbc1470385549dfb6ee83bb440cdb70c490bcc09f24a994cc792f
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SHA512
0ce8495d5d6aa8e8b692ef5a97e8f84e2e4a64fe390f96dadad3ac12052926e5f1a40252e16cbd4da9db95241fe1c0dbac2b58b7a7842b06707fbf52c5d6e712
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SSDEEP
3072:bm6W8W0tQ9nLHbB9W0c1TqECzR/mkSYGrl9ymgYUWfgs:qPt4QxL7B9W0c1RCzR/fSmlMD
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-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" NEAS.8fbdebbda4b82495cea9f98cae846760.exe Set value (int) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" wtcuz.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-1-5-21-3027552071-446050021-1254071215-1000\Control Panel\International\Geo\Nation NEAS.8fbdebbda4b82495cea9f98cae846760.exe -
Executes dropped EXE 1 IoCs
pid Process 1012 wtcuz.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /v" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /f" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /l" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /g" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /c" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /p" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /x" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /n" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /i" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /a" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /t" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /e" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /h" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /r" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /o" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /s" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /u" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /z" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /j" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /y" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /q" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /b" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /d" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /u" NEAS.8fbdebbda4b82495cea9f98cae846760.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /m" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /w" wtcuz.exe Set value (str) \REGISTRY\USER\S-1-5-21-3027552071-446050021-1254071215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wtcuz = "C:\\Users\\Admin\\wtcuz.exe /k" wtcuz.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 552 NEAS.8fbdebbda4b82495cea9f98cae846760.exe 552 NEAS.8fbdebbda4b82495cea9f98cae846760.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe 1012 wtcuz.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 552 NEAS.8fbdebbda4b82495cea9f98cae846760.exe 1012 wtcuz.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 552 wrote to memory of 1012 552 NEAS.8fbdebbda4b82495cea9f98cae846760.exe 92 PID 552 wrote to memory of 1012 552 NEAS.8fbdebbda4b82495cea9f98cae846760.exe 92 PID 552 wrote to memory of 1012 552 NEAS.8fbdebbda4b82495cea9f98cae846760.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.8fbdebbda4b82495cea9f98cae846760.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.8fbdebbda4b82495cea9f98cae846760.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:552 -
C:\Users\Admin\wtcuz.exe"C:\Users\Admin\wtcuz.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:1012
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
204KB
MD5f5c56834cf4008b0e62804b6d1ca1670
SHA13796e65ac8c94d529f19952fa36bd7233d92719f
SHA2563e8dde664762971da8795b104a2cff19b09e98117ec0a7a5d76ea6e9ee3de76c
SHA51259f7c7d7dcadaa50e3645713ce55f7b2559a819ab92e90f6f7484b66049e0c800040d5700ba049d3063670c497a70572544db44df35397c1f17921e501a9cb95
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Filesize
204KB
MD5f5c56834cf4008b0e62804b6d1ca1670
SHA13796e65ac8c94d529f19952fa36bd7233d92719f
SHA2563e8dde664762971da8795b104a2cff19b09e98117ec0a7a5d76ea6e9ee3de76c
SHA51259f7c7d7dcadaa50e3645713ce55f7b2559a819ab92e90f6f7484b66049e0c800040d5700ba049d3063670c497a70572544db44df35397c1f17921e501a9cb95
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Filesize
204KB
MD5f5c56834cf4008b0e62804b6d1ca1670
SHA13796e65ac8c94d529f19952fa36bd7233d92719f
SHA2563e8dde664762971da8795b104a2cff19b09e98117ec0a7a5d76ea6e9ee3de76c
SHA51259f7c7d7dcadaa50e3645713ce55f7b2559a819ab92e90f6f7484b66049e0c800040d5700ba049d3063670c497a70572544db44df35397c1f17921e501a9cb95