Analysis
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max time kernel
50s -
max time network
70s -
platform
windows10-1703_x64 -
resource
win10-20230220-en -
resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system -
submitted
17-06-2023 11:11
Static task
static1
Behavioral task
behavioral1
Sample
c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe
Resource
win10-20230220-en
General
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Target
c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe
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Size
440KB
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MD5
55fa2ddc0ae01966455398fa41f16f09
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SHA1
a6eb19f6c11510d361a6df8a56e3316aaec26a96
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SHA256
c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952
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SHA512
83c8f60d2ad78527180938970bb1df1b1a5e2fecd7fa41babf3422f98b24a08f70306fb484f7ee8f1d3a80aec693ebf9ed636a2449778a5eb073f4b8438063e3
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SSDEEP
6144:s0ZTvnDi2NI89xS/19oe7bxqJnYtdWlJZqGn/gbOetgGQOATNETdgH:pTvLNP9I/19ohGKnaA7OONETe
Malware Config
Signatures
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Detect rhadamanthys stealer shellcode 2 IoCs
Processes:
resource yara_rule behavioral1/memory/4100-119-0x0000000002A20000-0x0000000002E20000-memory.dmp family_rhadamanthys behavioral1/memory/4100-120-0x0000000002A20000-0x0000000002E20000-memory.dmp family_rhadamanthys -
Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
Processes:
c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exedescription pid process target process PID 4100 created 3196 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe Explorer.EXE -
Deletes itself 1 IoCs
Processes:
certreq.exepid process 1680 certreq.exe -
Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
Processes:
certreq.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook certreq.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4424 4100 WerFault.exe c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
certreq.exedescription ioc process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 certreq.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString certreq.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.execertreq.exepid process 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe 1680 certreq.exe 1680 certreq.exe 1680 certreq.exe 1680 certreq.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exedescription pid process target process PID 4100 wrote to memory of 1680 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe certreq.exe PID 4100 wrote to memory of 1680 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe certreq.exe PID 4100 wrote to memory of 1680 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe certreq.exe PID 4100 wrote to memory of 1680 4100 c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe certreq.exe -
outlook_office_path 1 IoCs
Processes:
certreq.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook certreq.exe -
outlook_win_path 1 IoCs
Processes:
certreq.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3853465373-1718857667-1861325682-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook certreq.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3196
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C:\Users\Admin\AppData\Local\Temp\c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe"C:\Users\Admin\AppData\Local\Temp\c6574821e75907938b8749a94aada92533dc9091d6c51bc2623cfdf76747c952.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4100 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 3683⤵
- Program crash
PID:4424
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C:\Windows\system32\certreq.exe"C:\Windows\system32\certreq.exe"2⤵
- Deletes itself
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- outlook_office_path
- outlook_win_path
PID:1680
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