Analysis
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max time kernel
149s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 20:26
Static task
static1
Behavioral task
behavioral1
Sample
18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe
Resource
win7-20240419-en
General
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Target
18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe
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Size
2.0MB
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MD5
adea8099a77307b3aedb99b65c4fd513
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SHA1
ae26e0ca9be4fdf23ef5edae55ab0b025b84b6dd
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SHA256
18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1
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SHA512
e910245d12bc5a4243de5b60220b96b79a4d5a600aa92cc0097fc9d19cee0ac9615ea3b422fd24307e19dcfe2bfd76afb47df4e7fe2f335dd88794e1d6d21589
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SSDEEP
49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ
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/624-2-0x0000000004000000-0x0000000004149000-memory.dmp family_vidar_v7 behavioral2/memory/2080-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2080-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2080-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2080-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2080-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2080-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2080-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3827.tmppid process 2080 kat3827.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:
18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exedescription pid process target process PID 624 set thread context of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat3827.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3827.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat3827.tmppid process 2080 kat3827.tmp 2080 kat3827.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exedescription pid process target process PID 624 wrote to memory of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp PID 624 wrote to memory of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp PID 624 wrote to memory of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp PID 624 wrote to memory of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp PID 624 wrote to memory of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp PID 624 wrote to memory of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp PID 624 wrote to memory of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp PID 624 wrote to memory of 2080 624 18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe kat3827.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe"C:\Users\Admin\AppData\Local\Temp\18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:624 -
C:\Users\Admin\AppData\Local\Temp\kat3827.tmpC:\Users\Admin\AppData\Local\Temp\kat3827.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2080
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3827.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/624-0-0x0000000002370000-0x0000000002371000-memory.dmpFilesize
4KB
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memory/624-2-0x0000000004000000-0x0000000004149000-memory.dmpFilesize
1.3MB
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memory/624-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/2080-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2080-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2080-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2080-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2080-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2080-21-0x000000001B7C0000-0x000000001BA1F000-memory.dmpFilesize
2.4MB
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memory/2080-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2080-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB