Analysis
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max time kernel
91s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
15-02-2023 01:23
Static task
static1
Behavioral task
behavioral1
Sample
c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe
Resource
win10v2004-20221111-en
General
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Target
c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe
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Size
237KB
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MD5
06167414f9e8c6eeafd8d769c0fb8f1f
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SHA1
b20b33f159f92f28f08ba44b2146a4e9b060a50b
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SHA256
c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2
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SHA512
d3af4323e3cd75661cbf52f7929a9fafbf00dccb7d100502c1730c4c630ad259a78307b2200d1aa9cf61c76d549f4edaec41bc132bf3fecfe47bc66018707319
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SSDEEP
3072:Bo1NawlLkh+Q5aeZyjl968GWKolUNe7PPIfvdOGiM/E1+TBVALn2tKTvQzb9jSlC:qDLK+7X1OofjBMk+TBVA/e5Wb
Malware Config
Signatures
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Detect rhadamanthys stealer shellcode 2 IoCs
resource yara_rule behavioral1/memory/5084-135-0x0000000002550000-0x000000000256D000-memory.dmp family_rhadamanthys behavioral1/memory/5084-145-0x0000000002550000-0x000000000256D000-memory.dmp family_rhadamanthys -
Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
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Blocklisted process makes network request 2 IoCs
flow pid Process 13 4092 rundll32.exe 22 4092 rundll32.exe -
Loads dropped DLL 1 IoCs
pid Process 4092 rundll32.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Program crash 2 IoCs
pid pid_target Process procid_target 3204 5084 WerFault.exe 81 4260 4092 WerFault.exe 82 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4092 rundll32.exe 4092 rundll32.exe 4092 rundll32.exe 4092 rundll32.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 5084 wrote to memory of 4092 5084 c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe 82 PID 5084 wrote to memory of 4092 5084 c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe 82 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook rundll32.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe"C:\Users\Admin\AppData\Local\Temp\c224f1f4ec24cbe1600beb5f9be181016a640c57f4a4848ac31dc733ddfb01b2.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:5084 -
C:\Windows\system32\rundll32.exe"C:\Users\Admin\AppData\Roaming\nsis_unse566ecc.dll",PrintUIEntry |5CQkOhmAAAA|1TKr5GsMwYD|67sDqg8OAAl|xYmwxC0TNSO|1k8B3tZkgiyf2sAZQByAG4XAP9sADMAMgAuAKVkHwBs8|AtBQPz8ET|ADUAagBDAGH|AHoAdgBtAE2rAFA|AGkXAHEtAln|SIPsKOgEAgD|AEiDxCjDzMz|zEyJRCQYSIn|VCQQSIlMJAj+XQFIi0QkMEiJ2wQkgQE4SG8ACEhvx0QkEC0B6w6BAV8QSIPAAY8BEIEBt0BIOZYAcyWfA4v|DCRIA8hIi8HXSItMqwFUewAD0f9Ii8qKCYgI6|3BZgVlSIsEJWD+8|AzyUiLUBhI|zvRdDZIg8Ig|0iLAkg7wnQq|2aDeEgYdRpM|4tAUGZBgzhru3QHERFLdQgREHj|EC50BUiLAOuv1UiLSP0AwWoAQP9TVVZXQVRBVe9BVkFXXQFmgTn|TVpNi|hMi|K|SIvZD4X88|BM|2NJPEGBPAlQv0UAAA+F6vPwQe+LhAmI8|CFwEi|jTwBD4TWahGDd7wJjC0BD4THOQH|i2cgRItfHIv|dyREi08YTAP|4UwD2UgD8TN|yUWFyQ+EpPPw|02LxEGLEEUz|9JIA9OKAoTA|3QdQcHKDQ++vcD6AAFEA9C|EXX|7EGB+qr8DXz|dA6DwQFJg8D|BEE7yXNp68b|i8EPtwxORYv|LItMA+t0WDN97aoQdFFBixTBAP|TM8mKAkyLwm|rD8HJyBEDyOUQ7wFBigDVEO0zwD8z9kE7DLbgEKYA|4PGAYP4CHLu|+sKSIvLQf|Vv0mJBPeDxeQQxL8EO28Ycq9mAUH|X0FeQV1BXF|3Xl1bMxdIgexg|QFkAIvp6Gb+|3||SIXAD4SYdSDrTI2vAYsrEMgz||vom30gjV8ETI3|RUYz0ovL|1T7JGiAIEyL4A+E9Wt1IEWoEDPAi9O+kSBIiXwkIKYgcH6AIEiL8A+ES3Ug|qYgUEiNVghEjb9HQEiNjCSFEUjfi9jofP1+II1W1UjeIBDiIczz8Ohnfu8gRIsGjVcIQSB6piBYyiGJhCSAhxLt3vPwiw7aIFiJjLEkcREHMJEg6DHvIIv9nC0yTItdOkiD9|tsSIogMEyJZN8kOEyLpBoyTIndXIQBhCTchxGGknY5AY1HSzCMJPDz8L9Ji9To6fwFMIrdnHgySI2EeDJBgP|zIY1PbEQwGP6kAoPpAXXzgbz+eDIhUmV4dU2Ld4Qk9CIxlCT4NQH|wkg72HI4g|p|bHYzRI1JQPoAT5RBuACYAKYgQMoiz|h0GUS2MMAxSY33VCRskSBJg+hsu+hrgjBIi86mIHj|SIX|dBKLVUL5TI4wGzFIjUwkQB||10iBxHQhYSQtCAAtAQ==2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- outlook_office_path
- outlook_win_path
PID:4092 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 4092 -s 5243⤵
- Program crash
PID:4260
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5084 -s 6962⤵
- Program crash
PID:3204
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 5084 -ip 50841⤵PID:4364
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 368 -p 4092 -ip 40921⤵PID:4692
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
49KB
MD5832890fded186835970d1d3302590138
SHA15385703e9dcde43e60928b2e9c941b7232468a6a
SHA256438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576
SHA5125cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1
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Filesize
49KB
MD5832890fded186835970d1d3302590138
SHA15385703e9dcde43e60928b2e9c941b7232468a6a
SHA256438c088568093ad767802ba5e132efbd4e643ddf62e4996565c3b46719e3e576
SHA5125cf752eac75b532b32501c9d469cbcb6638b49cf20df040554b37986cbe3c068a10e2ff69747b594b5b114111cbbe1cdfbbd0f394a7ac71b863e042414a68ae1