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Analysis
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max time kernel
90s -
max time network
123s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
08/06/2024, 17:59
Static task
static1
Behavioral task
behavioral1
Sample
65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe
Resource
win10v2004-20240426-en
General
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Target
65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe
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Size
1.9MB
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MD5
6090b8a6aa613fa717b03676f6d2c1dd
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SHA1
60c24ad8f163be51c1ba0224670004cc11594e18
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SHA256
65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41
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SHA512
9516647b87c4eea8a47dcebed184cd79f73d6a814175cf29bb759ff9bd1acda28811e0901bc4ea21b9834abed499613c2ffa50c9c6b49e4503f6d89cc498d9ab
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SSDEEP
49152:zsC/lYEBY3sEAQACR07Q3byRD8aXY658:zsCdYEBOfAw07QLyLn
Malware Config
Extracted
stealc
Extracted
vidar
https://t.me/r8z0l
https://steamcommunity.com/profiles/76561199698764354
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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 behavioral2/memory/1284-2-0x00000000040E0000-0x0000000004243000-memory.dmp family_vidar_v7 behavioral2/memory/4540-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4540-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4540-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4540-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4540-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4540-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4540-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 4540 kat7B6A.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 1284 set thread context of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77 -
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 kat7B6A.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4540 kat7B6A.tmp 4540 kat7B6A.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1284 wrote to memory of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77 PID 1284 wrote to memory of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77 PID 1284 wrote to memory of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77 PID 1284 wrote to memory of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77 PID 1284 wrote to memory of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77 PID 1284 wrote to memory of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77 PID 1284 wrote to memory of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77 PID 1284 wrote to memory of 4540 1284 65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe 77
Processes
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C:\Users\Admin\AppData\Local\Temp\65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe"C:\Users\Admin\AppData\Local\Temp\65ed96ae24698ed824cdc50cd54d85ffe36148e5a70e7093243fb446b7d71c41.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1284 -
C:\Users\Admin\AppData\Local\Temp\kat7B6A.tmpC:\Users\Admin\AppData\Local\Temp\kat7B6A.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4540
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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