Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
30-11-2022 21:20
Static task
static1
Behavioral task
behavioral1
Sample
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
Resource
win10v2004-20220812-en
General
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Target
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe
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Size
245KB
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MD5
bc09fe65df4c3c4f72fab57a32d6321e
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SHA1
2c6c7f902da3c8aba207dd548b094d64c22f08d9
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SHA256
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c
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SHA512
41c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089
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SSDEEP
6144:jpuYPcJ3XpDq8InaUjsqCfs0TcTvT2w+703B8:jpmn8naDqCU0YTI03m
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
Processes:
wmptb64.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications wmptb64.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptb64.exe = "C:\\Windows\\SysWOW64\\wmptb64.exe:*:Enabled:Windows Media Protocal" wmptb64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List wmptb64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile wmptb64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications wmptb64.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmptb64.exe = "C:\\Windows\\SysWOW64\\wmptb64.exe:*:Enabled:Windows Media Protocal" wmptb64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List wmptb64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile wmptb64.exe -
Executes dropped EXE 2 IoCs
Processes:
wmptb64.exewmptb64.exepid process 4228 wmptb64.exe 4668 wmptb64.exe -
Processes:
resource yara_rule behavioral2/memory/2748-133-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/2748-135-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/2748-136-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/2748-137-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/2748-138-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/2748-142-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/4668-147-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/4668-148-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/4668-149-0x0000000000400000-0x0000000000465000-memory.dmp upx behavioral2/memory/4668-150-0x0000000000400000-0x0000000000465000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wmptb64.exedescription ioc process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run wmptb64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Protocal = "C:\\Windows\\SysWOW64\\wmptb64.exe" wmptb64.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
wmptb64.execc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum wmptb64.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 wmptb64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe -
Drops file in System32 directory 5 IoCs
Processes:
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exewmptb64.exedescription ioc process File opened for modification C:\Windows\SysWOW64\wmptb64.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe File created C:\Windows\SysWOW64\wmptb64.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe File opened for modification C:\Windows\SysWOW64\ wmptb64.exe File opened for modification C:\Windows\SysWOW64\wmptb64.exe wmptb64.exe File opened for modification C:\Windows\SysWOW64\ cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exewmptb64.exedescription pid process target process PID 4624 set thread context of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 4228 set thread context of 4668 4228 wmptb64.exe wmptb64.exe -
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
Processes:
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exewmptb64.exepid process 2748 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe 2748 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe 2748 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe 2748 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe 4668 wmptb64.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.execc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exewmptb64.exewmptb64.exedescription pid process target process PID 4624 wrote to memory of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 4624 wrote to memory of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 4624 wrote to memory of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 4624 wrote to memory of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 4624 wrote to memory of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 4624 wrote to memory of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 4624 wrote to memory of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 4624 wrote to memory of 2748 4624 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe PID 2748 wrote to memory of 4228 2748 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe wmptb64.exe PID 2748 wrote to memory of 4228 2748 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe wmptb64.exe PID 2748 wrote to memory of 4228 2748 cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe wmptb64.exe PID 4228 wrote to memory of 4668 4228 wmptb64.exe wmptb64.exe PID 4228 wrote to memory of 4668 4228 wmptb64.exe wmptb64.exe PID 4228 wrote to memory of 4668 4228 wmptb64.exe wmptb64.exe PID 4228 wrote to memory of 4668 4228 wmptb64.exe wmptb64.exe PID 4228 wrote to memory of 4668 4228 wmptb64.exe wmptb64.exe PID 4228 wrote to memory of 4668 4228 wmptb64.exe wmptb64.exe PID 4228 wrote to memory of 4668 4228 wmptb64.exe wmptb64.exe PID 4228 wrote to memory of 4668 4228 wmptb64.exe wmptb64.exe PID 4668 wrote to memory of 724 4668 wmptb64.exe Explorer.EXE PID 4668 wrote to memory of 724 4668 wmptb64.exe Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe"C:\Users\Admin\AppData\Local\Temp\cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.exe"C:\Users\Admin\AppData\Local\Temp\cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c.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
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C:\Windows\SysWOW64\wmptb64.exe"C:\Windows\SysWOW64\wmptb64.exe" C:\Users\Admin\AppData\Local\Temp\CC711D~1.EXE4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\wmptb64.exe"C:\Windows\SysWOW64\wmptb64.exe" C:\Users\Admin\AppData\Local\Temp\CC711D~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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\wmptb64.exeFilesize
245KB
MD5bc09fe65df4c3c4f72fab57a32d6321e
SHA12c6c7f902da3c8aba207dd548b094d64c22f08d9
SHA256cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c
SHA51241c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089
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C:\Windows\SysWOW64\wmptb64.exeFilesize
245KB
MD5bc09fe65df4c3c4f72fab57a32d6321e
SHA12c6c7f902da3c8aba207dd548b094d64c22f08d9
SHA256cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c
SHA51241c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089
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C:\Windows\SysWOW64\wmptb64.exeFilesize
245KB
MD5bc09fe65df4c3c4f72fab57a32d6321e
SHA12c6c7f902da3c8aba207dd548b094d64c22f08d9
SHA256cc711d85c8da2316e79d1158e562f722b84e3557863b89b63cc55ac5dd504e1c
SHA51241c25a4ee4873e1274fd3159d27503a5c4c7057da05bb07357eddc33fc7adeaac97a079f47d549538d7fcbbf290d0abfec36da4c5172d8c7e50ef9a4b0b76089
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memory/2748-142-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/2748-137-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/2748-138-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/2748-136-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/2748-132-0x0000000000000000-mapping.dmp
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memory/2748-135-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/2748-133-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/4228-139-0x0000000000000000-mapping.dmp
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memory/4668-143-0x0000000000000000-mapping.dmp
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memory/4668-147-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/4668-148-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/4668-149-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB
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memory/4668-150-0x0000000000400000-0x0000000000465000-memory.dmpFilesize
404KB