Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
27-09-2024 01:56
Static task
static1
Behavioral task
behavioral1
Sample
f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe
Resource
win10v2004-20240802-en
General
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Target
f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe
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Size
403KB
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MD5
2cce29d734ea1d227b338834698e2de4
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SHA1
41700cd1bcf5f5bcca81ce722ed47fc17bd030c2
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SHA256
f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d
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SHA512
ea0b440113a225764b38ae2526a10f7e4f3081e4a353e9831cf0e846ac7ba97ea7c2b4a12ab6fac5708a7855da8967f1b6bc661757dc68d819d11887a6af20b5
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SSDEEP
6144:O+0dGgr04h1LBuTmcYz43wUDPNvms5PYYzX3oYbEU6DsV4+1/QSyiZEO:30d/h1LBK13wUjx5QYTo0EUBVSS/EO
Malware Config
Extracted
vidar
11
e90840a846d017e7b095f7543cdf2d15
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/4484-3-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4484-7-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4484-9-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4484-18-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4484-19-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4484-35-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4484-36-0x0000000000400000-0x0000000000676000-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 4072 set thread context of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.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 RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4484 RegAsm.exe 4484 RegAsm.exe 4484 RegAsm.exe 4484 RegAsm.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85 PID 4072 wrote to memory of 4484 4072 f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe"C:\Users\Admin\AppData\Local\Temp\f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4072 -
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:4484
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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