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Analysis
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max time kernel
112s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19/09/2022, 00:56
Static task
static1
Behavioral task
behavioral1
Sample
6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
Resource
win10v2004-20220812-en
General
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Target
6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe
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Size
253KB
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MD5
d72d29e17d55a0f5327ba3b310111f4c
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SHA1
b35f60396d2d01c0a1148601143acc1c916668b9
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SHA256
6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524
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SHA512
49119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3
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SSDEEP
6144:7qXm9VZHAHjWm7LABGIwHeM8ce8dqTv7uNAab6xHUN:W2vZHADWVBGISercr0vCAauxHE
Malware Config
Extracted
metasploit
encoder/call4_dword_xor
Signatures
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MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
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Modifies firewall policy service 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List wmpbd32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile wmpbd32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications wmpbd32.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbd32.exe = "C:\\Windows\\SysWOW64\\wmpbd32.exe:*:Enabled:Windows Media Config" wmpbd32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List wmpbd32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile wmpbd32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications wmpbd32.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpbd32.exe = "C:\\Windows\\SysWOW64\\wmpbd32.exe:*:Enabled:Windows Media Config" wmpbd32.exe -
Executes dropped EXE 2 IoCs
pid Process 792 wmpbd32.exe 2736 wmpbd32.exe -
resource yara_rule behavioral2/memory/3576-133-0x0000000000400000-0x000000000044C000-memory.dmp upx behavioral2/memory/3576-135-0x0000000000400000-0x000000000044C000-memory.dmp upx behavioral2/memory/3576-136-0x0000000000400000-0x000000000044C000-memory.dmp upx behavioral2/memory/3576-137-0x0000000000400000-0x0000000000446000-memory.dmp upx behavioral2/memory/3576-147-0x0000000000400000-0x0000000000446000-memory.dmp upx behavioral2/memory/2736-148-0x0000000000400000-0x000000000044C000-memory.dmp upx behavioral2/memory/2736-149-0x0000000000400000-0x000000000044C000-memory.dmp upx -
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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run wmpbd32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Config = "C:\\Windows\\SysWOW64\\wmpbd32.exe" wmpbd32.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 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum wmpbd32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 wmpbd32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\wmpbd32.exe 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe File created C:\Windows\SysWOW64\wmpbd32.exe 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe File opened for modification C:\Windows\SysWOW64\ wmpbd32.exe File opened for modification C:\Windows\SysWOW64\ 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4700 set thread context of 3576 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 80 PID 792 set thread context of 2736 792 wmpbd32.exe 82 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3576 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 3576 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 3576 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 3576 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 2736 wmpbd32.exe 2736 wmpbd32.exe 2736 wmpbd32.exe 2736 wmpbd32.exe -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 4700 wrote to memory of 3576 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 80 PID 4700 wrote to memory of 3576 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 80 PID 4700 wrote to memory of 3576 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 80 PID 4700 wrote to memory of 3576 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 80 PID 4700 wrote to memory of 3576 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 80 PID 4700 wrote to memory of 3576 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 80 PID 4700 wrote to memory of 3576 4700 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 80 PID 3576 wrote to memory of 792 3576 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 81 PID 3576 wrote to memory of 792 3576 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 81 PID 3576 wrote to memory of 792 3576 6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe 81 PID 792 wrote to memory of 2736 792 wmpbd32.exe 82 PID 792 wrote to memory of 2736 792 wmpbd32.exe 82 PID 792 wrote to memory of 2736 792 wmpbd32.exe 82 PID 792 wrote to memory of 2736 792 wmpbd32.exe 82 PID 792 wrote to memory of 2736 792 wmpbd32.exe 82 PID 792 wrote to memory of 2736 792 wmpbd32.exe 82 PID 792 wrote to memory of 2736 792 wmpbd32.exe 82 PID 2736 wrote to memory of 2484 2736 wmpbd32.exe 33 PID 2736 wrote to memory of 2484 2736 wmpbd32.exe 33
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:2484
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C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe"C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4700 -
C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe"C:\Users\Admin\AppData\Local\Temp\6a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524.exe"3⤵
- Checks computer location settings
- Maps connected drives based on registry
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3576 -
C:\Windows\SysWOW64\wmpbd32.exe"C:\Windows\SysWOW64\wmpbd32.exe" C:\Users\Admin\AppData\Local\Temp\6A1435~1.EXE4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:792 -
C:\Windows\SysWOW64\wmpbd32.exe"C:\Windows\SysWOW64\wmpbd32.exe" C:\Users\Admin\AppData\Local\Temp\6A1435~1.EXE5⤵
- Modifies firewall policy service
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2736
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
253KB
MD5d72d29e17d55a0f5327ba3b310111f4c
SHA1b35f60396d2d01c0a1148601143acc1c916668b9
SHA2566a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524
SHA51249119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3
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Filesize
253KB
MD5d72d29e17d55a0f5327ba3b310111f4c
SHA1b35f60396d2d01c0a1148601143acc1c916668b9
SHA2566a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524
SHA51249119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3
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Filesize
253KB
MD5d72d29e17d55a0f5327ba3b310111f4c
SHA1b35f60396d2d01c0a1148601143acc1c916668b9
SHA2566a143506d1428a9d5ee2dc9e59bd5846060f3748742c314e2a9b7b7d67177524
SHA51249119148ec126a95f1560fd6b6e4c47ef1396bd75862a7210c63b70ce792fd08eac1715df7945a7af46b75c0cd78c460fe9e91e9bee8ac5b1a3c4daeaad8bda3