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Analysis
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max time kernel
152s -
max time network
170s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
01/12/2022, 17:40
Static task
static1
Behavioral task
behavioral1
Sample
cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
Resource
win10v2004-20220812-en
General
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Target
cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe
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Size
259KB
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MD5
dc5960e94932cddb25a0118729234ec4
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SHA1
2615246d4d3832e0a1ad2bd8825300ae8153a14f
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SHA256
cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888
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SHA512
604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33
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SSDEEP
3072:ybfupze+Lo2RuB/1fYlQHqzx806EhafJtRXpWOvB66EMxZkbw8eFLZBbsUYVayOl:4Oe+RR+NFKzDheL8gxqbbeFT
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 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List wmplv64.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmplv64.exe = "C:\\Windows\\SysWOW64\\wmplv64.exe:*:Enabled:Windows Media Launch" wmplv64.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List wmplv64.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmplv64.exe = "C:\\Windows\\SysWOW64\\wmplv64.exe:*:Enabled:Windows Media Launch" wmplv64.exe -
Executes dropped EXE 2 IoCs
pid Process 952 wmplv64.exe 1784 wmplv64.exe -
Sets file execution options in registry 2 TTPs 18 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe wmplv64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe wmplv64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\epplauncher.exe wmplv64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastSvc.exe wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe\Debugger = "CMD /C>null" wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avast.setup\Debugger = "CMD /C>null" wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastUI.exe\Debugger = "CMD /C>null" wmplv64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastUI.exe wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MsMpEng.exe\Debugger = "CMD /C>null" wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe\Debugger = "CMD /C>null" wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\epplauncher.exe\Debugger = "CMD /C>null" wmplv64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avast.setup wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe\Debugger = "CMD /C>null" wmplv64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe\Debugger = "CMD /C>null" wmplv64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MsMpEng.exe wmplv64.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastSvc.exe\Debugger = "CMD /C>null" wmplv64.exe -
resource yara_rule behavioral1/memory/1808-55-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-57-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-58-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-60-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-65-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-66-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-67-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-68-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-69-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1808-74-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1784-89-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1784-90-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1784-91-0x0000000000400000-0x0000000000464000-memory.dmp upx behavioral1/memory/1784-92-0x0000000000400000-0x0000000000464000-memory.dmp upx -
Deletes itself 1 IoCs
pid Process 1784 wmplv64.exe -
Loads dropped DLL 2 IoCs
pid Process 1808 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 1808 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run wmplv64.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Launch = "C:\\Windows\\SysWOW64\\wmplv64.exe" wmplv64.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 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum wmplv64.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 wmplv64.exe -
Drops file in System32 directory 5 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\ cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe File opened for modification C:\Windows\SysWOW64\wmplv64.exe cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe File created C:\Windows\SysWOW64\wmplv64.exe cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe File opened for modification C:\Windows\SysWOW64\ wmplv64.exe File opened for modification C:\Windows\SysWOW64\wmplv64.exe wmplv64.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1096 set thread context of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 952 set thread context of 1784 952 wmplv64.exe 30 -
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 6 IoCs
pid Process 1808 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 1808 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 1784 wmplv64.exe 1784 wmplv64.exe 1784 wmplv64.exe 1784 wmplv64.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 1096 wrote to memory of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 1096 wrote to memory of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 1096 wrote to memory of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 1096 wrote to memory of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 1096 wrote to memory of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 1096 wrote to memory of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 1096 wrote to memory of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 1096 wrote to memory of 1808 1096 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 28 PID 1808 wrote to memory of 952 1808 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 29 PID 1808 wrote to memory of 952 1808 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 29 PID 1808 wrote to memory of 952 1808 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 29 PID 1808 wrote to memory of 952 1808 cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe 29 PID 952 wrote to memory of 1784 952 wmplv64.exe 30 PID 952 wrote to memory of 1784 952 wmplv64.exe 30 PID 952 wrote to memory of 1784 952 wmplv64.exe 30 PID 952 wrote to memory of 1784 952 wmplv64.exe 30 PID 952 wrote to memory of 1784 952 wmplv64.exe 30 PID 952 wrote to memory of 1784 952 wmplv64.exe 30 PID 952 wrote to memory of 1784 952 wmplv64.exe 30 PID 952 wrote to memory of 1784 952 wmplv64.exe 30 PID 1784 wrote to memory of 1276 1784 wmplv64.exe 12 PID 1784 wrote to memory of 1276 1784 wmplv64.exe 12
Processes
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C:\Users\Admin\AppData\Local\Temp\cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe"C:\Users\Admin\AppData\Local\Temp\cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1096 -
C:\Users\Admin\AppData\Local\Temp\cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe"C:\Users\Admin\AppData\Local\Temp\cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888.exe"2⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1808 -
C:\Windows\SysWOW64\wmplv64.exe"C:\Windows\SysWOW64\wmplv64.exe" C:\Users\Admin\AppData\Local\Temp\CAC7AA~1.EXE3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:952 -
C:\Windows\SysWOW64\wmplv64.exe"C:\Windows\SysWOW64\wmplv64.exe" C:\Users\Admin\AppData\Local\Temp\CAC7AA~1.EXE4⤵
- Modifies firewall policy service
- Executes dropped EXE
- Sets file execution options in registry
- Deletes itself
- 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:1784
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1276
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
259KB
MD5dc5960e94932cddb25a0118729234ec4
SHA12615246d4d3832e0a1ad2bd8825300ae8153a14f
SHA256cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888
SHA512604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33
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Filesize
259KB
MD5dc5960e94932cddb25a0118729234ec4
SHA12615246d4d3832e0a1ad2bd8825300ae8153a14f
SHA256cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888
SHA512604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33
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Filesize
259KB
MD5dc5960e94932cddb25a0118729234ec4
SHA12615246d4d3832e0a1ad2bd8825300ae8153a14f
SHA256cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888
SHA512604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33
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Filesize
259KB
MD5dc5960e94932cddb25a0118729234ec4
SHA12615246d4d3832e0a1ad2bd8825300ae8153a14f
SHA256cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888
SHA512604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33
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Filesize
259KB
MD5dc5960e94932cddb25a0118729234ec4
SHA12615246d4d3832e0a1ad2bd8825300ae8153a14f
SHA256cac7aabcf8785e719ec620c14653e427fe5f7ee500083b35a9675c6df71ec888
SHA512604cda59a9758e8a35814bb6100f6be4f51d645e83ec9e269c8c29233de0cf90ea22f5eb2245bc8918a4506c47e32556ae2185456532d47abcf476115abeee33