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Analysis
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max time kernel
150s -
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
05/12/2022, 23:22
Static task
static1
Behavioral task
behavioral1
Sample
7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe
Resource
win7-20221111-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe
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Size
92KB
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MD5
07934fe44016f1c72fe3780351561e30
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SHA1
871d96e2ec173240e4ffd0357411be712057f95b
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SHA256
7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d
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SHA512
c5be32d61639837888803368c0158acc6ad9bf25c5c7e6845fa2a35a3fef9bc6a4e9eb0d44b067b8706c580a49667b7ca3c0e220c985b3b56ea47dfdc17956ba
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SSDEEP
1536:IqrNQI+7yib1jlsdiHaqyAjiFrfLHr+zj5rIUq7c6oO:DrNQnyibllsYHaqyAmfrCf5dq7c6
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" 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" taeefu.exe -
Executes dropped EXE 2 IoCs
pid Process 4820 taeefu.exe 636 taeefu.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 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.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\taeefu = "C:\\Users\\Admin\\taeefu.exe /d" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /v" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /c" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /y" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /n" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /j" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /w" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /l" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /t" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /h" taeefu.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /x" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /z" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /f" 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /r" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /k" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /s" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /f" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /p" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /a" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /o" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /e" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /g" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /b" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /m" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /i" taeefu.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /q" taeefu.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taeefu = "C:\\Users\\Admin\\taeefu.exe /u" taeefu.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 opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum taeefu.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 taeefu.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 taeefu.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1812 set thread context of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 4820 set thread context of 636 4820 taeefu.exe 82 -
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 5016 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 5016 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe 636 taeefu.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 5016 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 4820 taeefu.exe 636 taeefu.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 1812 wrote to memory of 5016 1812 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 80 PID 5016 wrote to memory of 4820 5016 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 81 PID 5016 wrote to memory of 4820 5016 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 81 PID 5016 wrote to memory of 4820 5016 7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe 81 PID 4820 wrote to memory of 636 4820 taeefu.exe 82 PID 4820 wrote to memory of 636 4820 taeefu.exe 82 PID 4820 wrote to memory of 636 4820 taeefu.exe 82 PID 4820 wrote to memory of 636 4820 taeefu.exe 82 PID 4820 wrote to memory of 636 4820 taeefu.exe 82 PID 4820 wrote to memory of 636 4820 taeefu.exe 82 PID 4820 wrote to memory of 636 4820 taeefu.exe 82 PID 4820 wrote to memory of 636 4820 taeefu.exe 82 PID 4820 wrote to memory of 636 4820 taeefu.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe"C:\Users\Admin\AppData\Local\Temp\7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Users\Admin\AppData\Local\Temp\7d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d.exe712⤵
- 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:5016 -
C:\Users\Admin\taeefu.exe"C:\Users\Admin\taeefu.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Users\Admin\taeefu.exe714⤵
- 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:636
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
92KB
MD507934fe44016f1c72fe3780351561e30
SHA1871d96e2ec173240e4ffd0357411be712057f95b
SHA2567d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d
SHA512c5be32d61639837888803368c0158acc6ad9bf25c5c7e6845fa2a35a3fef9bc6a4e9eb0d44b067b8706c580a49667b7ca3c0e220c985b3b56ea47dfdc17956ba
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Filesize
92KB
MD507934fe44016f1c72fe3780351561e30
SHA1871d96e2ec173240e4ffd0357411be712057f95b
SHA2567d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d
SHA512c5be32d61639837888803368c0158acc6ad9bf25c5c7e6845fa2a35a3fef9bc6a4e9eb0d44b067b8706c580a49667b7ca3c0e220c985b3b56ea47dfdc17956ba
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Filesize
92KB
MD507934fe44016f1c72fe3780351561e30
SHA1871d96e2ec173240e4ffd0357411be712057f95b
SHA2567d9094cbd10445fe4c5fcfbc98d3e2286d616a4fce6472bf6e8a97c5bcdf783d
SHA512c5be32d61639837888803368c0158acc6ad9bf25c5c7e6845fa2a35a3fef9bc6a4e9eb0d44b067b8706c580a49667b7ca3c0e220c985b3b56ea47dfdc17956ba