Analysis
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max time kernel
170s -
max time network
124s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
13-10-2024 18:36
Static task
static1
Behavioral task
behavioral1
Sample
a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe
Resource
win11-20241007-en
windows11-21h2-x64
24 signatures
1800 seconds
General
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Target
a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe
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Size
404KB
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MD5
3c9241d0ce97c159d6cfaa49f602fafd
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SHA1
3a0320d338544496cb2ed6952d52e740c7f25d03
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SHA256
a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc
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SHA512
e7a86d0e92be6c741d53e505d712034f24cc9951fbb0015e6c46b97399eaa358c216de63930728fc1ca7edaaf3ceca3ed1dcab0e1c7bf0c384ba78d22615e9d4
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SSDEEP
12288:Dpn81p29d9YRhTe4kashZFxfNvJKXZYDJEO:1Sp29d9YRhi4kasRxfNxfJt
Malware Config
Extracted
Family
vidar
Version
11
Botnet
514d77849a01ff8ab7dd99d5f0a2e19e
C2
https://t.me/jamsemlg
https://steamcommunity.com/profiles/76561199780418869
https://t.me/ae5ed
Attributes
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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 15 IoCs
resource yara_rule behavioral1/memory/4984-3-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-8-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-6-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-41-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-42-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-50-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-51-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-59-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-60-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-76-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-77-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-101-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-102-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-109-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral1/memory/4984-110-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 4984 RegAsm.exe 4984 RegAsm.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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 4416 set thread context of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 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 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language timeout.exe -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName taskmgr.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 -
Delays execution with timeout.exe 1 IoCs
pid Process 3620 timeout.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000_Classes\Local Settings taskmgr.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4984 RegAsm.exe 4984 RegAsm.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4984 RegAsm.exe 4984 RegAsm.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4984 RegAsm.exe 4984 RegAsm.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4984 RegAsm.exe 4984 RegAsm.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4764 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4764 taskmgr.exe Token: SeSystemProfilePrivilege 4764 taskmgr.exe Token: SeCreateGlobalPrivilege 4764 taskmgr.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
pid Process 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe 4764 taskmgr.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4984 RegAsm.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 4416 wrote to memory of 680 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 78 PID 4416 wrote to memory of 680 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 78 PID 4416 wrote to memory of 680 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 78 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4416 wrote to memory of 4984 4416 a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe 79 PID 4984 wrote to memory of 4824 4984 RegAsm.exe 85 PID 4984 wrote to memory of 4824 4984 RegAsm.exe 85 PID 4984 wrote to memory of 4824 4984 RegAsm.exe 85 PID 4824 wrote to memory of 3620 4824 cmd.exe 87 PID 4824 wrote to memory of 3620 4824 cmd.exe 87 PID 4824 wrote to memory of 3620 4824 cmd.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe"C:\Users\Admin\AppData\Local\Temp\a73c4d134f180b9f4047f9be94f3f36b3a2e34469f8c90f70d964778efdc6adc.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4416 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵PID:680
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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⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4984 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\IIEHCFIDHIDG" & exit3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4824 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:3620
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /01⤵
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4764
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1560
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
4Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571