Analysis
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max time kernel
258s -
max time network
357s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
04-12-2022 11:38
Static task
static1
Behavioral task
behavioral1
Sample
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
Resource
win10v2004-20221111-en
General
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Target
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
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Size
224KB
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MD5
3afe6fa198d0191ad4470a79126f333e
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SHA1
959b9639f05989dfef918070c0bb4aef34047e92
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SHA256
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174
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SHA512
f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d
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SSDEEP
3072:OyyL6e5KJOUM8GXLimIxlLUQtVWSjFLrjF0TSUSj74JgO0GgGsgWAWUsN4dtv:OrWe8oiGiBrFLXF0mA70GWZU9tv
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:
igfxcb86.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List igfxcb86.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxcb86.exe = "C:\\Windows\\SysWOW64\\igfxcb86.exe:*:Enabled:Intel Display Daemon" igfxcb86.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List igfxcb86.exe Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxcb86.exe = "C:\\Windows\\SysWOW64\\igfxcb86.exe:*:Enabled:Intel Display Daemon" igfxcb86.exe -
Executes dropped EXE 2 IoCs
Processes:
igfxcb86.exeigfxcb86.exepid process 1728 igfxcb86.exe 1788 igfxcb86.exe -
Processes:
resource yara_rule behavioral1/memory/268-56-0x0000000000400000-0x000000000044B000-memory.dmp upx behavioral1/memory/268-58-0x0000000000400000-0x000000000044B000-memory.dmp upx behavioral1/memory/268-59-0x0000000000400000-0x000000000044B000-memory.dmp upx behavioral1/memory/268-61-0x0000000000400000-0x000000000044B000-memory.dmp upx behavioral1/memory/268-63-0x0000000000400000-0x000000000044B000-memory.dmp upx behavioral1/memory/268-64-0x0000000000400000-0x000000000044B000-memory.dmp upx behavioral1/memory/268-65-0x0000000000400000-0x000000000044B000-memory.dmp upx behavioral1/memory/268-66-0x0000000000400000-0x000000000044B000-memory.dmp upx behavioral1/memory/1788-81-0x0000000000400000-0x0000000000401000-memory.dmp upx behavioral1/memory/1788-82-0x0000000000400000-0x000000000043D000-memory.dmp upx behavioral1/memory/268-83-0x0000000000400000-0x000000000044B000-memory.dmp upx -
Deletes itself 1 IoCs
Processes:
igfxcb86.exepid process 1788 igfxcb86.exe -
Loads dropped DLL 2 IoCs
Processes:
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exepid process 268 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe 268 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
igfxcb86.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run igfxcb86.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Intel Display Daemon = "C:\\Windows\\SysWOW64\\igfxcb86.exe" igfxcb86.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum igfxcb86.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 igfxcb86.exe -
Drops file in System32 directory 4 IoCs
Processes:
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exedescription ioc process File opened for modification C:\Windows\SysWOW64\ dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe File opened for modification C:\Windows\SysWOW64\igfxcb86.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe File created C:\Windows\SysWOW64\igfxcb86.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe File opened for modification C:\Windows\SysWOW64\ igfxcb86.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exedescription pid process target process PID 1308 set thread context of 268 1308 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe PID 1728 set thread context of 1788 1728 igfxcb86.exe igfxcb86.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:
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exepid process 268 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe 268 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe 1788 igfxcb86.exe 1788 igfxcb86.exe -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
igfxcb86.exepid process 1728 igfxcb86.exe -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exedfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exeigfxcb86.exedescription pid process target process PID 1308 wrote to memory of 268 1308 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe PID 1308 wrote to memory of 268 1308 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe PID 1308 wrote to memory of 268 1308 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe PID 1308 wrote to memory of 268 1308 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe PID 1308 wrote to memory of 268 1308 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe PID 1308 wrote to memory of 268 1308 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe PID 1308 wrote to memory of 268 1308 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe PID 268 wrote to memory of 1728 268 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe igfxcb86.exe PID 268 wrote to memory of 1728 268 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe igfxcb86.exe PID 268 wrote to memory of 1728 268 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe igfxcb86.exe PID 268 wrote to memory of 1728 268 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe igfxcb86.exe PID 1728 wrote to memory of 1788 1728 igfxcb86.exe igfxcb86.exe PID 1728 wrote to memory of 1788 1728 igfxcb86.exe igfxcb86.exe PID 1728 wrote to memory of 1788 1728 igfxcb86.exe igfxcb86.exe PID 1728 wrote to memory of 1788 1728 igfxcb86.exe igfxcb86.exe PID 1728 wrote to memory of 1788 1728 igfxcb86.exe igfxcb86.exe PID 1728 wrote to memory of 1788 1728 igfxcb86.exe igfxcb86.exe PID 1728 wrote to memory of 1788 1728 igfxcb86.exe igfxcb86.exe PID 1788 wrote to memory of 1272 1788 igfxcb86.exe Explorer.EXE PID 1788 wrote to memory of 1272 1788 igfxcb86.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\dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe"C:\Users\Admin\AppData\Local\Temp\dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe"C:\Users\Admin\AppData\Local\Temp\dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.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\igfxcb86.exe"C:\Windows\SysWOW64\igfxcb86.exe" C:\Users\Admin\AppData\Local\Temp\DFEF17~1.EXE4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\igfxcb86.exe"C:\Windows\SysWOW64\igfxcb86.exe" C:\Users\Admin\AppData\Local\Temp\DFEF17~1.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\igfxcb86.exeFilesize
224KB
MD53afe6fa198d0191ad4470a79126f333e
SHA1959b9639f05989dfef918070c0bb4aef34047e92
SHA256dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174
SHA512f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d
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C:\Windows\SysWOW64\igfxcb86.exeFilesize
224KB
MD53afe6fa198d0191ad4470a79126f333e
SHA1959b9639f05989dfef918070c0bb4aef34047e92
SHA256dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174
SHA512f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d
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C:\Windows\SysWOW64\igfxcb86.exeFilesize
224KB
MD53afe6fa198d0191ad4470a79126f333e
SHA1959b9639f05989dfef918070c0bb4aef34047e92
SHA256dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174
SHA512f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d
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\Windows\SysWOW64\igfxcb86.exeFilesize
224KB
MD53afe6fa198d0191ad4470a79126f333e
SHA1959b9639f05989dfef918070c0bb4aef34047e92
SHA256dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174
SHA512f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d
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\Windows\SysWOW64\igfxcb86.exeFilesize
224KB
MD53afe6fa198d0191ad4470a79126f333e
SHA1959b9639f05989dfef918070c0bb4aef34047e92
SHA256dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174
SHA512f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d
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memory/268-62-0x0000000076391000-0x0000000076393000-memory.dmpFilesize
8KB
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memory/268-59-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-63-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-64-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-65-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-66-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-61-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-83-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-55-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-58-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-56-0x0000000000400000-0x000000000044B000-memory.dmpFilesize
300KB
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memory/268-54-0x0000000000000000-mapping.dmp
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memory/1272-84-0x0000000002AA0000-0x0000000002ABE000-memory.dmpFilesize
120KB
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memory/1728-69-0x0000000000000000-mapping.dmp
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memory/1788-72-0x0000000000000000-mapping.dmp
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memory/1788-78-0x000000000044A000-0x000000000044B000-memory.dmpFilesize
4KB
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memory/1788-80-0x000000000044A000-0x000000000044B000-memory.dmpFilesize
4KB
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memory/1788-81-0x0000000000400000-0x0000000000401000-memory.dmpFilesize
4KB
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memory/1788-82-0x0000000000400000-0x000000000043D000-memory.dmpFilesize
244KB
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memory/1788-77-0x0000000000431000-0x0000000000449E00-memory.dmpFilesize
99KB
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memory/1788-75-0x0000000000431000-0x000000000044A000-memory.dmpFilesize
100KB