Analysis
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max time kernel
72s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 08:35
Static task
static1
Behavioral task
behavioral1
Sample
915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe
Resource
win10v2004-20220901-en
General
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Target
915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe
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Size
497KB
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MD5
7dd5da0fe50d0c14b4bd2f4ae265e34e
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SHA1
82f5595d0c3d61c80eba41e9da640b8e7d7d7ca2
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SHA256
915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99
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SHA512
09c0438b0fab4c6a81781b0099101815d4f3403f412bc726107980b58d16230c273a4e8202c39f9d2f4f2b689322d1daa352088cf8b5c3f86fb56b0d4a098ae7
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SSDEEP
6144:oSDMpra6/Ri8nfqYo7Xxp9WGQeg8bhI5PPL14:Kp1Ji8fRyB7WE2L1
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot1335107831:AAGZPoo67JukV78LJI16BeQqy3whx-zI59g/sendMessage?chat_id=1294593001
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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 3 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 7 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exedescription pid process target process PID 1048 set thread context of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 5036 3084 WerFault.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exeRegAsm.exepid process 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe 3084 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe Token: SeDebugPrivilege 3084 RegAsm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exedescription pid process target process PID 1048 wrote to memory of 2276 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 2276 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 2276 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe PID 1048 wrote to memory of 3084 1048 915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe"C:\Users\Admin\AppData\Local\Temp\915bf45c516f6cf10dec4441b47efb8ce11bd3db44569521e98912fe7d839f99.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵PID:2276
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3084 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 16163⤵
- Program crash
PID:5036
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3084 -ip 30841⤵PID:216