Analysis
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max time kernel
133s -
max time network
106s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 15:27
Static task
static1
Behavioral task
behavioral1
Sample
fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe
Resource
win10v2004-20240508-en
General
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Target
fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe
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Size
2.0MB
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MD5
ae4fa8e0a9ffc588c39ccd06b44e394f
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SHA1
c6ddb615d962cfc7dfd4a2e1429b821888091c3b
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SHA256
fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6
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SHA512
9409251967064ba368471af85f8aa48322359650e3b2f42260d44043480de7fe310695ed718e853fdeb5c46a95fbb92490e333a739f86769933877d46b2a7797
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SSDEEP
49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ
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/3568-1-0x00000000040E0000-0x0000000004229000-memory.dmp family_vidar_v7 behavioral1/memory/4492-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4492-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4492-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4492-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4492-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4492-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4492-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4805.tmppid process 4492 kat4805.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:
fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exedescription pid process target process PID 3568 set thread context of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4805.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4805.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4805.tmppid process 4492 kat4805.tmp 4492 kat4805.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exedescription pid process target process PID 3568 wrote to memory of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp PID 3568 wrote to memory of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp PID 3568 wrote to memory of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp PID 3568 wrote to memory of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp PID 3568 wrote to memory of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp PID 3568 wrote to memory of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp PID 3568 wrote to memory of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp PID 3568 wrote to memory of 4492 3568 fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe kat4805.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe"C:\Users\Admin\AppData\Local\Temp\fc6f196562ee8fab708c942033dd8b29ca07136e114201c9945f42170a703ec6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4805.tmpC:\Users\Admin\AppData\Local\Temp\kat4805.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4805.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3568-0-0x0000000002260000-0x0000000002261000-memory.dmpFilesize
4KB
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memory/3568-1-0x00000000040E0000-0x0000000004229000-memory.dmpFilesize
1.3MB
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memory/3568-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/4492-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4492-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4492-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4492-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4492-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4492-18-0x000000001DBA0000-0x000000001DDFF000-memory.dmpFilesize
2.4MB
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memory/4492-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4492-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB