Analysis
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max time kernel
146s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
02/04/2024, 11:32
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20240319-en
4 signatures
150 seconds
General
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Target
file.exe
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Size
244KB
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MD5
2caa34244dd6726f37dbccc7fe9b59fd
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SHA1
0ec728e4614ae0f3ae5db4ed255a1a344d654659
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SHA256
5bde316bb02a4d1c0e5530093c04f48e6bb862a828f154b5ad2a19c3a032937d
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SHA512
2a471bf75e21b6637839626f25668e03fd60c7bdd2f11b838c3842999e6b615a26c6bd1bcf3ecdcdae37a6ce11a046e7590194c8fdc40aef2ab44854238669b2
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SSDEEP
3072:jp3BvL34Ph1UOpbqWvhSveoQxd0+4NB4F/8CUKnozHZHeV1HLVA8959eQAOED:Nxvz4ZxbVvhweoQL0DNBKn6H1w5AENo
Malware Config
Extracted
Family
vidar
C2
https://steamcommunity.com/profiles/76561199658817715
https://t.me/sa9ok
Attributes
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36
Signatures
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Detect Vidar Stealer 3 IoCs
resource yara_rule behavioral2/memory/4812-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4812-7-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4812-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3984 set thread context of 4812 3984 file.exe 88 -
Program crash 2 IoCs
pid pid_target Process procid_target 4640 3984 WerFault.exe 84 1352 4812 WerFault.exe 88 -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88 PID 3984 wrote to memory of 4812 3984 file.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3984 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵PID:4812
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 23283⤵
- Program crash
PID:1352
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 8082⤵
- Program crash
PID:4640
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3984 -ip 39841⤵PID:3632
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4812 -ip 48121⤵PID:3640