Analysis
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max time kernel
82s -
max time network
92s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
19-09-2022 03:09
Static task
static1
Behavioral task
behavioral1
Sample
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
Resource
win10v2004-20220901-en
General
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Target
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe
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Size
170KB
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MD5
72d3478bd0c0f31ff0ca19bb096130a8
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SHA1
d86416279916cba2716e90264c082f9da2240c36
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SHA256
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf
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SHA512
566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9
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SSDEEP
3072:SyPevd8s7ZeqSBlnb/YlSFc6yum7c3tw+T++Elaqurlc14lYdrKe439pdp:SSs7klBpb/tRyuVdwhl/urC1GY4L9bp
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
Processes:
wmpkv32.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List wmpkv32.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkv32.exe = "C:\\Windows\\SysWOW64\\wmpkv32.exe:*:Enabled:WinMedia Server" wmpkv32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List wmpkv32.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkv32.exe = "C:\\Windows\\SysWOW64\\wmpkv32.exe:*:Enabled:WinMedia Server" wmpkv32.exe -
Executes dropped EXE 2 IoCs
Processes:
wmpkv32.exewmpkv32.exepid process 2008 wmpkv32.exe 1700 wmpkv32.exe -
Processes:
resource yara_rule behavioral1/memory/1048-55-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1048-57-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1048-58-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1048-62-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1048-63-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1048-64-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1048-65-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1700-82-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1048-83-0x0000000000400000-0x0000000000451000-memory.dmp upx behavioral1/memory/1700-84-0x0000000000400000-0x0000000000451000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
wmpkv32.exepid process 1700 wmpkv32.exe -
Loads dropped DLL 2 IoCs
Processes:
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exepid process 1048 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 1048 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wmpkv32.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run wmpkv32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia Server = "C:\\Windows\\SysWOW64\\wmpkv32.exe" wmpkv32.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exewmpkv32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum wmpkv32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 wmpkv32.exe -
Drops file in System32 directory 4 IoCs
Processes:
wmpkv32.exe66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exedescription ioc process File opened for modification C:\Windows\SysWOW64\ wmpkv32.exe File opened for modification C:\Windows\SysWOW64\ 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe File opened for modification C:\Windows\SysWOW64\wmpkv32.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe File created C:\Windows\SysWOW64\wmpkv32.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exewmpkv32.exedescription pid process target process PID 1456 set thread context of 1048 1456 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe PID 2008 set thread context of 1700 2008 wmpkv32.exe wmpkv32.exe -
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 4 IoCs
Processes:
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exewmpkv32.exepid process 1048 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 1048 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 1700 wmpkv32.exe 1700 wmpkv32.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exewmpkv32.exewmpkv32.exedescription pid process target process PID 1456 wrote to memory of 1048 1456 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe PID 1456 wrote to memory of 1048 1456 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe PID 1456 wrote to memory of 1048 1456 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe PID 1456 wrote to memory of 1048 1456 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe PID 1456 wrote to memory of 1048 1456 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe PID 1456 wrote to memory of 1048 1456 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe PID 1456 wrote to memory of 1048 1456 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe PID 1048 wrote to memory of 2008 1048 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe wmpkv32.exe PID 1048 wrote to memory of 2008 1048 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe wmpkv32.exe PID 1048 wrote to memory of 2008 1048 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe wmpkv32.exe PID 1048 wrote to memory of 2008 1048 66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe wmpkv32.exe PID 2008 wrote to memory of 1700 2008 wmpkv32.exe wmpkv32.exe PID 2008 wrote to memory of 1700 2008 wmpkv32.exe wmpkv32.exe PID 2008 wrote to memory of 1700 2008 wmpkv32.exe wmpkv32.exe PID 2008 wrote to memory of 1700 2008 wmpkv32.exe wmpkv32.exe PID 2008 wrote to memory of 1700 2008 wmpkv32.exe wmpkv32.exe PID 2008 wrote to memory of 1700 2008 wmpkv32.exe wmpkv32.exe PID 2008 wrote to memory of 1700 2008 wmpkv32.exe wmpkv32.exe PID 1700 wrote to memory of 1348 1700 wmpkv32.exe Explorer.EXE PID 1700 wrote to memory of 1348 1700 wmpkv32.exe Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:1348
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C:\Users\Admin\AppData\Local\Temp\66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe"C:\Users\Admin\AppData\Local\Temp\66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1456 -
C:\Users\Admin\AppData\Local\Temp\66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe"C:\Users\Admin\AppData\Local\Temp\66e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf.exe"3⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Windows\SysWOW64\wmpkv32.exe"C:\Windows\SysWOW64\wmpkv32.exe" C:\Users\Admin\AppData\Local\Temp\66E292~1.EXE4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Windows\SysWOW64\wmpkv32.exe"C:\Windows\SysWOW64\wmpkv32.exe" C:\Users\Admin\AppData\Local\Temp\66E292~1.EXE5⤵
- Modifies firewall policy service
- Executes dropped EXE
- 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:1700
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
170KB
MD572d3478bd0c0f31ff0ca19bb096130a8
SHA1d86416279916cba2716e90264c082f9da2240c36
SHA25666e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf
SHA512566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9
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Filesize
170KB
MD572d3478bd0c0f31ff0ca19bb096130a8
SHA1d86416279916cba2716e90264c082f9da2240c36
SHA25666e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf
SHA512566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9
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Filesize
170KB
MD572d3478bd0c0f31ff0ca19bb096130a8
SHA1d86416279916cba2716e90264c082f9da2240c36
SHA25666e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf
SHA512566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9
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Filesize
170KB
MD572d3478bd0c0f31ff0ca19bb096130a8
SHA1d86416279916cba2716e90264c082f9da2240c36
SHA25666e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf
SHA512566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9
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Filesize
170KB
MD572d3478bd0c0f31ff0ca19bb096130a8
SHA1d86416279916cba2716e90264c082f9da2240c36
SHA25666e2924598475f91962b91d29feba8b83317dbaedac3ed1e077d79e4cac25ddf
SHA512566527ab20ce004fd397764b642683ed77fa3fabedd32e2e0d58ae0e6b4c530310152b6ffb1b265b2f8d5de3eb51c7cff6bffdf5bfbe2a045f0e0617bcaa5ee9