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Analysis
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max time kernel
134s -
max time network
103s -
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, 19:54
Static task
static1
Behavioral task
behavioral1
Sample
3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe
Resource
win10v2004-20240508-en
General
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Target
3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe
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Size
2.0MB
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MD5
396eb804e59119e4ff7931931b7d8ffa
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SHA1
fbaeb2253b7342df997ff43c64a6d21bd5f97389
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SHA256
3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562
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SHA512
bf7ae68420bc6cc780a3630df82880ba0412336bbfdfd678df448af59760d92a60282501d654bc1da592bbadb49cd361be9693d91dcbcc45ba398ae59a52cbf9
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SSDEEP
49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ
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
resource yara_rule behavioral1/memory/1428-2-0x0000000004080000-0x00000000041C9000-memory.dmp family_vidar_v7 behavioral1/memory/5116-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5116-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5116-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5116-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5116-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5116-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/5116-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 5116 kat53FC.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
description pid Process procid_target PID 1428 set thread context of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84 -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat53FC.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5116 kat53FC.tmp 5116 kat53FC.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1428 wrote to memory of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84 PID 1428 wrote to memory of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84 PID 1428 wrote to memory of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84 PID 1428 wrote to memory of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84 PID 1428 wrote to memory of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84 PID 1428 wrote to memory of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84 PID 1428 wrote to memory of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84 PID 1428 wrote to memory of 5116 1428 3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe"C:\Users\Admin\AppData\Local\Temp\3be5d72001044e873dce9671b8d8e5ae5ba04ff58551851d014df2b2e2d7f562.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Users\Admin\AppData\Local\Temp\kat53FC.tmpC:\Users\Admin\AppData\Local\Temp\kat53FC.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:5116
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f