Analysis
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max time kernel
152s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
23/11/2022, 18:11
Static task
static1
Behavioral task
behavioral1
Sample
23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe
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Size
124KB
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MD5
4508c1dc7d6e2dc911343088b98f7a61
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SHA1
bb6d3af96184ec95d7f8a56fd04753e4004e90a9
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SHA256
23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312
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SHA512
d07fb574ccc99e9d5a7e5310372a54d29441a0beec9c9cda873425d9a49c00dc51a84de2456b8dbd42e8df499a17ff67b9cb8cc4541681a6fda61e25c6fec24d
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SSDEEP
3072:grt1Z+dOV05+LiWMsM+W2LUjK0C0qdwnDmO:uHb4+LijsU
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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gaoyoo.exe -
Executes dropped EXE 2 IoCs
pid Process 1380 gaoyoo.exe 820 gaoyoo.exe -
Loads dropped DLL 2 IoCs
pid Process 1756 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 1756 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /p" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /r" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /f" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /o" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /k" gaoyoo.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /v" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /j" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /t" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /i" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /q" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /g" 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /g" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /x" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /c" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /h" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /y" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /e" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /s" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /a" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /n" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /w" gaoyoo.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /l" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /d" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /u" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /m" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /z" gaoyoo.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\gaoyoo = "C:\\Users\\Admin\\gaoyoo.exe /b" gaoyoo.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 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum gaoyoo.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 gaoyoo.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 gaoyoo.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 864 set thread context of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 1380 set thread context of 820 1380 gaoyoo.exe 29 -
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 1756 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe 820 gaoyoo.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 1756 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 1380 gaoyoo.exe 820 gaoyoo.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 864 wrote to memory of 1756 864 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 27 PID 1756 wrote to memory of 1380 1756 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 28 PID 1756 wrote to memory of 1380 1756 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 28 PID 1756 wrote to memory of 1380 1756 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 28 PID 1756 wrote to memory of 1380 1756 23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe 28 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29 PID 1380 wrote to memory of 820 1380 gaoyoo.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe"C:\Users\Admin\AppData\Local\Temp\23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:864 -
C:\Users\Admin\AppData\Local\Temp\23c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312.exe782⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Users\Admin\gaoyoo.exe"C:\Users\Admin\gaoyoo.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1380 -
C:\Users\Admin\gaoyoo.exe784⤵
- 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:820
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
124KB
MD54508c1dc7d6e2dc911343088b98f7a61
SHA1bb6d3af96184ec95d7f8a56fd04753e4004e90a9
SHA25623c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312
SHA512d07fb574ccc99e9d5a7e5310372a54d29441a0beec9c9cda873425d9a49c00dc51a84de2456b8dbd42e8df499a17ff67b9cb8cc4541681a6fda61e25c6fec24d
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Filesize
124KB
MD54508c1dc7d6e2dc911343088b98f7a61
SHA1bb6d3af96184ec95d7f8a56fd04753e4004e90a9
SHA25623c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312
SHA512d07fb574ccc99e9d5a7e5310372a54d29441a0beec9c9cda873425d9a49c00dc51a84de2456b8dbd42e8df499a17ff67b9cb8cc4541681a6fda61e25c6fec24d
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Filesize
124KB
MD54508c1dc7d6e2dc911343088b98f7a61
SHA1bb6d3af96184ec95d7f8a56fd04753e4004e90a9
SHA25623c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312
SHA512d07fb574ccc99e9d5a7e5310372a54d29441a0beec9c9cda873425d9a49c00dc51a84de2456b8dbd42e8df499a17ff67b9cb8cc4541681a6fda61e25c6fec24d
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Filesize
124KB
MD54508c1dc7d6e2dc911343088b98f7a61
SHA1bb6d3af96184ec95d7f8a56fd04753e4004e90a9
SHA25623c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312
SHA512d07fb574ccc99e9d5a7e5310372a54d29441a0beec9c9cda873425d9a49c00dc51a84de2456b8dbd42e8df499a17ff67b9cb8cc4541681a6fda61e25c6fec24d
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Filesize
124KB
MD54508c1dc7d6e2dc911343088b98f7a61
SHA1bb6d3af96184ec95d7f8a56fd04753e4004e90a9
SHA25623c88497f2cdd88e93045672c9fe56d038d9c8ecb034c877987949f5ca0b6312
SHA512d07fb574ccc99e9d5a7e5310372a54d29441a0beec9c9cda873425d9a49c00dc51a84de2456b8dbd42e8df499a17ff67b9cb8cc4541681a6fda61e25c6fec24d