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Analysis
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max time kernel
129s -
max time network
298s -
platform
windows10-1703_x64 -
resource
win10-20240611-en -
resource tags
arch:x64arch:x86image:win10-20240611-enlocale:en-usos:windows10-1703-x64system -
submitted
11/07/2024, 22:33
Static task
static1
Behavioral task
behavioral1
Sample
4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe
Resource
win7-20240705-en
General
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Target
4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe
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Size
5.5MB
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MD5
983dff02742f5837caf4346840a2781e
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SHA1
068034b6154abcb93cf7cc63b43a1b68b74cbcc6
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SHA256
4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9
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SHA512
a7b5eb217a829aaeb902467d046d5dff1886bccb7b29c7081a5c512411dedfed2ac041d4ecbc7a29944be3eb643377aecd42cf15a7b32d759ab598a91059802d
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SSDEEP
98304:nY/z5D4MPXHgcQI0pjKY6po40sv+nWwy3ir4:Ozp4MPUpwpo4Eny30
Malware Config
Extracted
vidar
https://steamcommunity.com/profiles/76561199735694209
https://t.me/puffclou
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1
Signatures
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Detect Vidar Stealer 5 IoCs
resource yara_rule behavioral2/memory/2224-67-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2224-69-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2224-72-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2224-81-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2224-136-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Loads dropped DLL 2 IoCs
pid Process 2224 MSBuild.exe 2224 MSBuild.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4296 set thread context of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 -
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 MSBuild.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4896 timeout.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 2224 MSBuild.exe 2224 MSBuild.exe 2224 MSBuild.exe 2224 MSBuild.exe 2224 MSBuild.exe 2224 MSBuild.exe 2224 MSBuild.exe 2224 MSBuild.exe 2224 MSBuild.exe 2224 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 4296 wrote to memory of 2224 4296 4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe 70 PID 2224 wrote to memory of 4556 2224 MSBuild.exe 72 PID 2224 wrote to memory of 4556 2224 MSBuild.exe 72 PID 2224 wrote to memory of 4556 2224 MSBuild.exe 72 PID 4556 wrote to memory of 4896 4556 cmd.exe 74 PID 4556 wrote to memory of 4896 4556 cmd.exe 74 PID 4556 wrote to memory of 4896 4556 cmd.exe 74
Processes
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C:\Users\Admin\AppData\Local\Temp\4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe"C:\Users\Admin\AppData\Local\Temp\4bdfd59b483a10eb95136609e25962884d8c6c4c97249fde304dc19b504768c9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4296 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2224 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EBAKEBAECGCB" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4556 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:4896
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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