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Analysis
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max time kernel
89s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05/10/2024, 15:46
Static task
static1
Behavioral task
behavioral1
Sample
13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe
Resource
win10v2004-20240802-en
General
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Target
13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe
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Size
404KB
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MD5
10e555691e5bd8608d3afde0c81a61e4
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SHA1
37480fa81dca9c7fa109820b0b86ed3ec7258b04
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SHA256
13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc
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SHA512
e4280c7b1c114b5b3dba3caa976604c77e69a782ecbff6cdb4c21653016878f90c8bcebd336dd288721ec38f464cd2a78e1bfe0b886e0bcb8a5fd610836df291
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SSDEEP
6144:kyt602OmYh5I7KU9QPrVI5IgQ0jolIMaszHQTh1u1KjjY9tbCDdBNkioEO:kdt7YMOU2hkflq3jHihamE912kioEO
Malware Config
Extracted
vidar
11
3c2b9e69b31bab816bc6aaf265216d69
https://t.me/jamsemlg
https://steamcommunity.com/profiles/76561199780418869
https://t.me/ae5ed
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0
Signatures
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Detect Vidar Stealer 7 IoCs
resource yara_rule behavioral2/memory/2824-3-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/2824-8-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/2824-6-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/2824-15-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/2824-16-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/2824-32-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/2824-33-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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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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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 388 set thread context of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
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 RegAsm.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2824 RegAsm.exe 2824 RegAsm.exe 2824 RegAsm.exe 2824 RegAsm.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 388 wrote to memory of 1992 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 84 PID 388 wrote to memory of 1992 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 84 PID 388 wrote to memory of 1992 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 84 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85 PID 388 wrote to memory of 2824 388 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe"C:\Users\Admin\AppData\Local\Temp\13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:388 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵PID:1992
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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⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2824
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1