Analysis
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max time kernel
133s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-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 behavioral1/memory/2232-1-0x0000000004070000-0x00000000041B9000-memory.dmp family_vidar_v7 behavioral1/memory/4316-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4316-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4316-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4316-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4316-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4316-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4316-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
katEEE4.tmppid process 4316 katEEE4.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 2232 set thread context of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
katEEE4.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString katEEE4.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
katEEE4.tmppid process 4316 katEEE4.tmp 4316 katEEE4.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exedescription pid process target process PID 2232 wrote to memory of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.tmp PID 2232 wrote to memory of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.tmp PID 2232 wrote to memory of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.tmp PID 2232 wrote to memory of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.tmp PID 2232 wrote to memory of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.tmp PID 2232 wrote to memory of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.tmp PID 2232 wrote to memory of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.tmp PID 2232 wrote to memory of 4316 2232 7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9.exe katEEE4.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\katEEE4.tmpC:\Users\Admin\AppData\Local\Temp\katEEE4.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3760,i,15140928051103392835,1612840580898364401,262144 --variations-seed-version --mojo-platform-channel-handle=3848 /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\katEEE4.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2232-0-0x00000000007C0000-0x00000000007C1000-memory.dmpFilesize
4KB
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memory/2232-1-0x0000000004070000-0x00000000041B9000-memory.dmpFilesize
1.3MB
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memory/2232-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/4316-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4316-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4316-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4316-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4316-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4316-20-0x000000001DBF0000-0x000000001DE4F000-memory.dmpFilesize
2.4MB
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memory/4316-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4316-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB