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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
24/05/2024, 04:14
Static task
static1
Behavioral task
behavioral1
Sample
197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe
Resource
win10v2004-20240508-en
General
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Target
197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe
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Size
2.4MB
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MD5
47c4d76fc76b9b0213148ea0bba44c2f
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SHA1
fcf9a628e7e8d267e6a65c21c138d1d3aea680c1
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SHA256
197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01
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SHA512
026a160159f474226662555db3fd550e62e5df79b4b74fd9a0b3cb19954551470cc47c4bfd297e6b0dd2fe3fd3f94306bbd5bda3618e90d104c76f765edf4286
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SSDEEP
49152:jxIRJF1HL+VdX68kUmJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dmtIuoITsdZ
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/4932-1-0x0000000004080000-0x00000000041C9000-memory.dmp family_vidar_v7 behavioral1/memory/2536-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2536-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2536-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2536-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2536-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2536-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2536-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 2536 kat5062.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 4932 set thread context of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86 -
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 kat5062.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2536 kat5062.tmp 2536 kat5062.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4932 wrote to memory of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86 PID 4932 wrote to memory of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86 PID 4932 wrote to memory of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86 PID 4932 wrote to memory of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86 PID 4932 wrote to memory of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86 PID 4932 wrote to memory of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86 PID 4932 wrote to memory of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86 PID 4932 wrote to memory of 2536 4932 197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe"C:\Users\Admin\AppData\Local\Temp\197957dae636b6aede55e7eb5d650b4107e425870bbf1bcaae3bfa6f37222a01.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Users\Admin\AppData\Local\Temp\kat5062.tmpC:\Users\Admin\AppData\Local\Temp\kat5062.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2536
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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