Analysis
- max time kernel
93s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
05/04/2023, 10:13
Static task
static1
Behavioral task
behavioral1
Sample
91fcc079b33d90c504df8d935b46e8e5.exe
Resource
win7-20230220-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
91fcc079b33d90c504df8d935b46e8e5.exe
Resource
win10v2004-20230220-en
9 signatures
150 seconds
General
- Target 91fcc079b33d90c504df8d935b46e8e5.exe
- Size 272KB
- Sample230405-l83j9sda76
- SHA256 8e05fe5a2271126b27ee3a7c2a6aa9e5e7e009efa4acfc29a688e3c2873110bb
- MD5 91fcc079b33d90c504df8d935b46e8e5
- SHA1 d45849d356f6121e5ef1a3f13add2ab1ae7f81e2
- SHA512 e27533ee6639f22b0e349d43e98365ff4425e69eca6482b66a2a5d3138ffa8111fdfa92ac1e9c103927b0b69a022507c55fe04f31584908f909ec944db4e762d
- SSDEEP 6144:F624jZbj24naPblybT4LhKTKeJbBGCsZI8f/T:FmjZbj24aPxETShKTTHsS8T
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detect rhadamanthys stealer shellcode 4 IoCs
resource yara_rule behavioral2/memory/1312-139-0x00000000006A0000-0x00000000006BC000-memory.dmp family_rhadamanthys behavioral2/memory/1312-140-0x00000000006A0000-0x00000000006BC000-memory.dmp family_rhadamanthys behavioral2/memory/1312-142-0x00000000006A0000-0x00000000006BC000-memory.dmp family_rhadamanthys behavioral2/memory/1312-149-0x00000000006A0000-0x00000000006BC000-memory.dmp family_rhadamanthys - Rhadamanthys
Rhadamanthys is an info stealer written in C++ first seen in August 2022.
- Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook dllhost.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook dllhost.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook dllhost.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook dllhost.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook dllhost.exe Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook dllhost.exe - Program crash 1 IoCs
pid pid_target Process procid_target 4884 1312 WerFault.exe 81 - 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 dllhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dllhost.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1312 91fcc079b33d90c504df8d935b46e8e5.exe 1312 91fcc079b33d90c504df8d935b46e8e5.exe 468 dllhost.exe 468 dllhost.exe 468 dllhost.exe 468 dllhost.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1312 wrote to memory of 468 1312 91fcc079b33d90c504df8d935b46e8e5.exe 88 PID 1312 wrote to memory of 468 1312 91fcc079b33d90c504df8d935b46e8e5.exe 88 PID 1312 wrote to memory of 468 1312 91fcc079b33d90c504df8d935b46e8e5.exe 88 PID 1312 wrote to memory of 468 1312 91fcc079b33d90c504df8d935b46e8e5.exe 88 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook dllhost.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook dllhost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\91fcc079b33d90c504df8d935b46e8e5.exe"C:\Users\Admin\AppData\Local\Temp\91fcc079b33d90c504df8d935b46e8e5.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1312 -
C:\Windows\system32\dllhost.exe"C:\Windows\system32\dllhost.exe"2⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- outlook_office_path
- outlook_win_path
PID:468
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1312 -s 7322⤵
- Program crash
PID:4884
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1312 -ip 13121⤵PID:2664