Analysis
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max time kernel
93s -
max time network
122s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 08:07
Static task
static1
Behavioral task
behavioral1
Sample
85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe
Resource
win10v2004-20240508-en
General
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Target
85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe
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Size
2.0MB
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MD5
835be6954983cdb53fee88007edf0e8b
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SHA1
b5b8f1a6709d97a9cb975eec82278bef7a6545fa
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SHA256
85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2
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SHA512
7ed98e2f5258a91f47bab06508fd12d04f643d0a71bc52499af9dab0cab4ae6d91f143780e301e4968e3b7eaa5621178a5ca5d9a6421b3c179780b677db96c57
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SSDEEP
49152:s4K3x1vU2JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex182tIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/2012-1-0x0000000004040000-0x0000000004189000-memory.dmp family_vidar_v7 behavioral1/memory/2752-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2752-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2752-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2752-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2752-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2752-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2752-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat47A8.tmppid process 2752 kat47A8.tmp -
Reads user/profile data of web browsers 2 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
Processes:
85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exedescription pid process target process PID 2012 set thread context of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat47A8.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat47A8.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat47A8.tmppid process 2752 kat47A8.tmp 2752 kat47A8.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exedescription pid process target process PID 2012 wrote to memory of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp PID 2012 wrote to memory of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp PID 2012 wrote to memory of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp PID 2012 wrote to memory of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp PID 2012 wrote to memory of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp PID 2012 wrote to memory of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp PID 2012 wrote to memory of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp PID 2012 wrote to memory of 2752 2012 85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe kat47A8.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe"C:\Users\Admin\AppData\Local\Temp\85149f1aa120d3172a707c484ab8f2d29d6b565f0f86945744b9ec61011fdad2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat47A8.tmpC:\Users\Admin\AppData\Local\Temp\kat47A8.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat47A8.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2012-0-0x0000000002370000-0x0000000002371000-memory.dmpFilesize
4KB
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memory/2012-1-0x0000000004040000-0x0000000004189000-memory.dmpFilesize
1.3MB
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memory/2012-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/2752-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2752-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2752-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2752-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2752-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2752-22-0x000000001B840000-0x000000001BA9F000-memory.dmpFilesize
2.4MB
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memory/2752-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2752-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB