Analysis
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max time kernel
95s -
max time network
112s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-10-2024 04:11
Static task
static1
Behavioral task
behavioral1
Sample
b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe
Resource
win10v2004-20241007-en
General
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Target
b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe
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Size
571KB
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MD5
04c2c7a717122dc38042383ec0012100
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SHA1
2a6791c8fa407043834e850e96a5b911fd0c4363
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SHA256
b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3
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SHA512
e23162c851cb99c37c7595accc8d2f9a7fbd5c08349b081f4d0d3035488ad41e9108c2f195ac58ace941f7d1c36f19f06219a31718dabbea6a7eaa8b14b804f1
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SSDEEP
12288:+Lg1ZnYljso4nhYWdMAhUe3kFKwWbdYGzIfP2d9jU4S:+wnYInOWKtehhZY8wqX
Malware Config
Extracted
vidar
c0c7c802c4ec94ab4c7fcd88c588698c
https://t.me/maslengdsa
https://steamcommunity.com/profiles/76561199786602107
https://t.me/lpnjoke
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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 16 IoCs
Processes:
resource yara_rule behavioral2/memory/4956-1-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-3-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-6-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-7-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-8-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-18-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-19-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-27-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-28-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-44-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-45-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-57-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-74-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-75-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-82-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 behavioral2/memory/4956-83-0x0000000000400000-0x0000000000676000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
Processes:
MSBuild.exepid Process 4956 MSBuild.exe 4956 MSBuild.exe -
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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Suspicious use of SetThreadContext 1 IoCs
Processes:
b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exedescription pid Process procid_target PID 548 set thread context of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target Process procid_target 4264 548 WerFault.exe 82 -
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.
Processes:
b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exeMSBuild.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MSBuild.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MSBuild.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MSBuild.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
MSBuild.exepid Process 4956 MSBuild.exe 4956 MSBuild.exe 4956 MSBuild.exe 4956 MSBuild.exe 4956 MSBuild.exe 4956 MSBuild.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
MSBuild.exepid Process 4956 MSBuild.exe -
Suspicious use of WriteProcessMemory 16 IoCs
Processes:
b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exedescription pid Process procid_target PID 548 wrote to memory of 1684 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 83 PID 548 wrote to memory of 1684 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 83 PID 548 wrote to memory of 1684 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 83 PID 548 wrote to memory of 2576 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 84 PID 548 wrote to memory of 2576 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 84 PID 548 wrote to memory of 2576 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 84 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85 PID 548 wrote to memory of 4956 548 b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe"C:\Users\Admin\AppData\Local\Temp\b4a04a1bf82bd3acb278fd1f1a3216686e465c574bc63a410192c40dec12e2d3N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵PID:1684
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵PID:2576
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4956
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 548 -s 2602⤵
- Program crash
PID:4264
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 548 -ip 5481⤵PID:5012
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571