Analysis
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max time kernel
92s -
max time network
95s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-05-2024 19:56
Static task
static1
Behavioral task
behavioral1
Sample
7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe
Resource
win10v2004-20240508-en
General
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Target
7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe
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Size
2.0MB
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MD5
c7e9ddcbc38c0671b039a5268ed30d12
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SHA1
c7a053d47dfb3cb87c1c6752e9d8668372b1f4ec
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SHA256
7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9
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SHA512
1928f85b3f0183163a2dd2543c4cf618baa2a84ff8128b951f1a72bd48706c19d3f4cb6a18f64ff563d310b8f24b71018f1f143df7a79cee9da5a98ad6d2067b
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SSDEEP
49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ
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 behavioral2/memory/3508-2-0x0000000004020000-0x0000000004169000-memory.dmp family_vidar_v7 behavioral2/memory/4636-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4636-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4636-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4636-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4636-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4636-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4636-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4AE4.tmppid process 4636 kat4AE4.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:
7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exedescription pid process target process PID 3508 set thread context of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4AE4.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4AE4.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4AE4.tmppid process 4636 kat4AE4.tmp 4636 kat4AE4.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exedescription pid process target process PID 3508 wrote to memory of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp PID 3508 wrote to memory of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp PID 3508 wrote to memory of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp PID 3508 wrote to memory of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp PID 3508 wrote to memory of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp PID 3508 wrote to memory of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp PID 3508 wrote to memory of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp PID 3508 wrote to memory of 4636 3508 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe kat4AE4.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe"C:\Users\Admin\AppData\Local\Temp\7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmpC:\Users\Admin\AppData\Local\Temp\kat4AE4.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\kat4AE4.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3508-0-0x0000000002450000-0x0000000002451000-memory.dmpFilesize
4KB
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memory/3508-2-0x0000000004020000-0x0000000004169000-memory.dmpFilesize
1.3MB
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memory/3508-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/4636-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-20-0x0000000019380000-0x00000000195DF000-memory.dmpFilesize
2.4MB
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memory/4636-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4636-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB