Analysis
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max time kernel
90s -
max time network
94s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
28-05-2024 02:51
Static task
static1
Behavioral task
behavioral1
Sample
6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe
Resource
win10v2004-20240508-en
General
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Target
6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe
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Size
1.9MB
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MD5
842319e84a104140f70fa0c5bd6c0590
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SHA1
611693023d72314fbefd0cd81d67cf39afb0665f
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SHA256
6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc
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SHA512
e62cbf06d9e4d59da89207a90b2a26ed68033284e12552d7dbac63633428006432d7214ae8a4783478640df88a5cd7c6dbd22d6a0189d4578a0b1f25952f9232
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SSDEEP
49152:CdKfTn6vSJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnBtIuoITsdZ
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/1836-2-0x0000000004000000-0x0000000004149000-memory.dmp family_vidar_v7 behavioral2/memory/916-7-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/916-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/916-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/916-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/916-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/916-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/916-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat7C15.tmppid process 916 kat7C15.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:
6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exedescription pid process target process PID 1836 set thread context of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat7C15.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7C15.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat7C15.tmppid process 916 kat7C15.tmp 916 kat7C15.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exedescription pid process target process PID 1836 wrote to memory of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp PID 1836 wrote to memory of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp PID 1836 wrote to memory of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp PID 1836 wrote to memory of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp PID 1836 wrote to memory of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp PID 1836 wrote to memory of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp PID 1836 wrote to memory of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp PID 1836 wrote to memory of 916 1836 6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe kat7C15.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe"C:\Users\Admin\AppData\Local\Temp\6be1cb3ae6ce78a6491eb5e1e8d36a6530f8cdfcf17e7f8d0162122447edafcc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1836 -
C:\Users\Admin\AppData\Local\Temp\kat7C15.tmpC:\Users\Admin\AppData\Local\Temp\kat7C15.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:916
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat7C15.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/916-7-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/916-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/916-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/916-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/916-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/916-19-0x00000000193F0000-0x000000001964F000-memory.dmpFilesize
2.4MB
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memory/916-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/916-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1836-0-0x0000000002350000-0x0000000002351000-memory.dmpFilesize
4KB
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memory/1836-2-0x0000000004000000-0x0000000004149000-memory.dmpFilesize
1.3MB
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memory/1836-9-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB