Analysis
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max time kernel
146s -
max time network
172s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
04-06-2022 00:05
Static task
static1
Behavioral task
behavioral1
Sample
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe
Resource
win10v2004-20220414-en
General
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Target
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe
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Size
245KB
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MD5
3bb9b752591fa1203fe803edad35857c
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SHA1
da11e4415e5ceaf5f055636f0024502e100c2476
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SHA256
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b
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SHA512
b5de6c75517e0fb69bba6bb9a5f657456ae45f23972b3cd27570cab046d2d2f68598ac70aaee63f100b8e220566369948c68cbd605aeab39c2160245fb59ed87
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:
wmpsh32.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsh32.exe = "C:\\Windows\\SysWOW64\\wmpsh32.exe:*:Enabled:Windows Media Content Sharing" wmpsh32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List wmpsh32.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpsh32.exe = "C:\\Windows\\SysWOW64\\wmpsh32.exe:*:Enabled:Windows Media Content Sharing" wmpsh32.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List wmpsh32.exe -
Executes dropped EXE 2 IoCs
Processes:
wmpsh32.exewmpsh32.exepid process 1216 wmpsh32.exe 1500 wmpsh32.exe -
Processes:
resource yara_rule behavioral1/memory/1164-55-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1164-57-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1164-58-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1164-60-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1164-64-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1164-65-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1164-66-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1164-67-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1164-84-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1500-85-0x0000000000400000-0x0000000000466000-memory.dmp upx behavioral1/memory/1500-86-0x0000000000400000-0x0000000000466000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
wmpsh32.exepid process 1500 wmpsh32.exe -
Loads dropped DLL 1 IoCs
Processes:
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exepid process 1164 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
wmpsh32.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run wmpsh32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Media Content Sharing = "C:\\Windows\\SysWOW64\\wmpsh32.exe" wmpsh32.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exewmpsh32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum wmpsh32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 wmpsh32.exe -
Drops file in System32 directory 5 IoCs
Processes:
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exewmpsh32.exedescription ioc process File opened for modification C:\Windows\SysWOW64\ 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe File opened for modification C:\Windows\SysWOW64\wmpsh32.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe File created C:\Windows\SysWOW64\wmpsh32.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe File opened for modification C:\Windows\SysWOW64\ wmpsh32.exe File opened for modification C:\Windows\SysWOW64\wmpsh32.exe wmpsh32.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exewmpsh32.exedescription pid process target process PID 1884 set thread context of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1216 set thread context of 1500 1216 wmpsh32.exe wmpsh32.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 7 IoCs
Processes:
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exewmpsh32.exepid process 1164 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 1164 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 1500 wmpsh32.exe 1500 wmpsh32.exe 1500 wmpsh32.exe 1500 wmpsh32.exe 1500 wmpsh32.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exewmpsh32.exewmpsh32.exedescription pid process target process PID 1884 wrote to memory of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1884 wrote to memory of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1884 wrote to memory of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1884 wrote to memory of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1884 wrote to memory of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1884 wrote to memory of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1884 wrote to memory of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1884 wrote to memory of 1164 1884 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe PID 1164 wrote to memory of 1216 1164 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe wmpsh32.exe PID 1164 wrote to memory of 1216 1164 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe wmpsh32.exe PID 1164 wrote to memory of 1216 1164 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe wmpsh32.exe PID 1164 wrote to memory of 1216 1164 11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe wmpsh32.exe PID 1216 wrote to memory of 1500 1216 wmpsh32.exe wmpsh32.exe PID 1216 wrote to memory of 1500 1216 wmpsh32.exe wmpsh32.exe PID 1216 wrote to memory of 1500 1216 wmpsh32.exe wmpsh32.exe PID 1216 wrote to memory of 1500 1216 wmpsh32.exe wmpsh32.exe PID 1216 wrote to memory of 1500 1216 wmpsh32.exe wmpsh32.exe PID 1216 wrote to memory of 1500 1216 wmpsh32.exe wmpsh32.exe PID 1216 wrote to memory of 1500 1216 wmpsh32.exe wmpsh32.exe PID 1216 wrote to memory of 1500 1216 wmpsh32.exe wmpsh32.exe PID 1500 wrote to memory of 1260 1500 wmpsh32.exe Explorer.EXE PID 1500 wrote to memory of 1260 1500 wmpsh32.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\11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe"C:\Users\Admin\AppData\Local\Temp\11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe"C:\Users\Admin\AppData\Local\Temp\11c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b.exe"3⤵
- Loads dropped DLL
- Maps connected drives based on registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\wmpsh32.exe"C:\Windows\SysWOW64\wmpsh32.exe" C:\Users\Admin\AppData\Local\Temp\11C871~1.EXE4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\wmpsh32.exe"C:\Windows\SysWOW64\wmpsh32.exe" C:\Users\Admin\AppData\Local\Temp\11C871~1.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
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\wmpsh32.exeFilesize
245KB
MD53bb9b752591fa1203fe803edad35857c
SHA1da11e4415e5ceaf5f055636f0024502e100c2476
SHA25611c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b
SHA512b5de6c75517e0fb69bba6bb9a5f657456ae45f23972b3cd27570cab046d2d2f68598ac70aaee63f100b8e220566369948c68cbd605aeab39c2160245fb59ed87
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C:\Windows\SysWOW64\wmpsh32.exeFilesize
245KB
MD53bb9b752591fa1203fe803edad35857c
SHA1da11e4415e5ceaf5f055636f0024502e100c2476
SHA25611c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b
SHA512b5de6c75517e0fb69bba6bb9a5f657456ae45f23972b3cd27570cab046d2d2f68598ac70aaee63f100b8e220566369948c68cbd605aeab39c2160245fb59ed87
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C:\Windows\SysWOW64\wmpsh32.exeFilesize
245KB
MD53bb9b752591fa1203fe803edad35857c
SHA1da11e4415e5ceaf5f055636f0024502e100c2476
SHA25611c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b
SHA512b5de6c75517e0fb69bba6bb9a5f657456ae45f23972b3cd27570cab046d2d2f68598ac70aaee63f100b8e220566369948c68cbd605aeab39c2160245fb59ed87
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\Windows\SysWOW64\wmpsh32.exeFilesize
245KB
MD53bb9b752591fa1203fe803edad35857c
SHA1da11e4415e5ceaf5f055636f0024502e100c2476
SHA25611c871395406ad11b229d9bf9c59321e2c6824f00cc673d0e5f60601e702180b
SHA512b5de6c75517e0fb69bba6bb9a5f657456ae45f23972b3cd27570cab046d2d2f68598ac70aaee63f100b8e220566369948c68cbd605aeab39c2160245fb59ed87
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memory/1164-61-0x000000000044E9B0-mapping.dmp
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memory/1164-58-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-63-0x0000000075D21000-0x0000000075D23000-memory.dmpFilesize
8KB
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memory/1164-64-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-65-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-66-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-67-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-60-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-55-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-54-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-84-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1164-57-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1216-69-0x0000000000000000-mapping.dmp
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memory/1260-87-0x0000000002980000-0x000000000299E000-memory.dmpFilesize
120KB
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memory/1500-78-0x000000000044E9B0-mapping.dmp
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memory/1500-85-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB
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memory/1500-86-0x0000000000400000-0x0000000000466000-memory.dmpFilesize
408KB