Analysis
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max time kernel
153s -
max time network
149s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
21-12-2021 11:54
Static task
static1
Behavioral task
behavioral1
Sample
8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe
Resource
win7-en-20211208
windows7_x64
0 signatures
0 seconds
General
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Target
8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe
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Size
69KB
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MD5
5bbd9bc7dafd0a6076ed450aa18afc0a
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SHA1
3ec5aa4b6185a505c521b07268d19a12455754e5
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SHA256
8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9
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SHA512
2d5f87490b90611bc9602c4f36933294f1021b20893275429b2d36b5e2b691d0eb8703579373dc43929902387032f74a51c7a7ec98aff3a3764d13d0bc8bbd3a
Malware Config
Signatures
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Phorphiex Payload 2 IoCs
resource yara_rule behavioral1/files/0x000700000001321e-56.dat family_phorphiex behavioral1/files/0x000700000001321e-58.dat family_phorphiex -
Executes dropped EXE 1 IoCs
pid Process 1656 wudsvsmgr.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" wudsvsmgr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" wudsvsmgr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiSpywareOverride = "1" wudsvsmgr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" wudsvsmgr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" wudsvsmgr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesOverride = "1" wudsvsmgr.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" wudsvsmgr.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Update Service = "C:\\Windows\\wudsvsmgr.exe" 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\wudsvsmgr.exe 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe File opened for modification C:\Windows\wudsvsmgr.exe 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1524 wrote to memory of 1656 1524 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe 27 PID 1524 wrote to memory of 1656 1524 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe 27 PID 1524 wrote to memory of 1656 1524 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe 27 PID 1524 wrote to memory of 1656 1524 8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe"C:\Users\Admin\AppData\Local\Temp\8f49d7e3596aff4c8cd3aa38d0dc6911ae77e54cc3b13210d95c9f38063317a9.bin.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1524 -
C:\Windows\wudsvsmgr.exeC:\Windows\wudsvsmgr.exe2⤵
- Executes dropped EXE
- Windows security modification
PID:1656
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