Analysis
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max time kernel
139s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 03:24
Static task
static1
Behavioral task
behavioral1
Sample
917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe
Resource
win10v2004-20240508-en
General
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Target
917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe
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Size
2.1MB
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MD5
502a8628ac9f42b8258d3ee440d58db8
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SHA1
ef7ff1d96bd374807b88a7a0f96cf49c49fe3309
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SHA256
917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1
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SHA512
673d52851e2cecc4220c3b7ddb4dc3f200ab8ceddb01df80f94f181c0dd53d95caa0006f1ea2e7bfc3f1e323278e75dab043849078ab5935d1126f73966ad96b
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SSDEEP
49152:N6uDuaS9refi8JtTF+TxMoxc1TU+j+dAzGwlrh:N6uKb9H8tIuoITsdZ
Malware Config
Extracted
stealc
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/2876-2-0x0000000004060000-0x00000000041A9000-memory.dmp family_vidar_v7 behavioral1/memory/1420-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1420-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1420-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1420-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1420-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1420-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1420-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat44E8.tmppid process 1420 kat44E8.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:
917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exedescription pid process target process PID 2876 set thread context of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat44E8.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat44E8.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat44E8.tmppid process 1420 kat44E8.tmp 1420 kat44E8.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exedescription pid process target process PID 2876 wrote to memory of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp PID 2876 wrote to memory of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp PID 2876 wrote to memory of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp PID 2876 wrote to memory of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp PID 2876 wrote to memory of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp PID 2876 wrote to memory of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp PID 2876 wrote to memory of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp PID 2876 wrote to memory of 1420 2876 917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe kat44E8.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe"C:\Users\Admin\AppData\Local\Temp\917ea94350f22c3c0dbb935090db6d6a180d22d1f6e46f447c85fe196b14a3e1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat44E8.tmpC:\Users\Admin\AppData\Local\Temp\kat44E8.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat44E8.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1420-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1420-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1420-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1420-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1420-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1420-18-0x000000001B720000-0x000000001B97F000-memory.dmpFilesize
2.4MB
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memory/1420-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1420-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2876-0-0x0000000002380000-0x0000000002381000-memory.dmpFilesize
4KB
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memory/2876-2-0x0000000004060000-0x00000000041A9000-memory.dmpFilesize
1.3MB
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memory/2876-10-0x0000000000400000-0x000000000061C000-memory.dmpFilesize
2.1MB