Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 20:47
Static task
static1
Behavioral task
behavioral1
Sample
19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe
Resource
win7-20240221-en
General
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Target
19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe
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Size
2.0MB
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MD5
d172f4efeb2bbe525ace5b59a821c9ed
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SHA1
ac38dbbb9c9fb383dab5eb90991d5edb45131caa
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SHA256
19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac
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SHA512
98dda633c63a573fdb6d2988009ddee6a6c39893df53f70380dd1a9ad886d99ae6cefc485b4703c8bec6fdd1281dce91de772e7313303df678b7894f7d537919
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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/2164-1-0x0000000004000000-0x0000000004149000-memory.dmp family_vidar_v7 behavioral2/memory/4568-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4568-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4568-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4568-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4568-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4568-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4568-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4D84.tmppid process 4568 kat4D84.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:
19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exedescription pid process target process PID 2164 set thread context of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4D84.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4D84.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4D84.tmppid process 4568 kat4D84.tmp 4568 kat4D84.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exedescription pid process target process PID 2164 wrote to memory of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp PID 2164 wrote to memory of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp PID 2164 wrote to memory of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp PID 2164 wrote to memory of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp PID 2164 wrote to memory of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp PID 2164 wrote to memory of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp PID 2164 wrote to memory of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp PID 2164 wrote to memory of 4568 2164 19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe kat4D84.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe"C:\Users\Admin\AppData\Local\Temp\19c5da486734eb34499ff1a9d9e5c48a921237b5d3b6ce363596ae281d8a46ac.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2164 -
C:\Users\Admin\AppData\Local\Temp\kat4D84.tmpC:\Users\Admin\AppData\Local\Temp\kat4D84.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4568
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4D84.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2164-0-0x0000000002270000-0x0000000002271000-memory.dmpFilesize
4KB
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memory/2164-1-0x0000000004000000-0x0000000004149000-memory.dmpFilesize
1.3MB
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memory/2164-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/4568-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4568-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4568-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4568-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4568-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4568-21-0x000000001DBF0000-0x000000001DE4F000-memory.dmpFilesize
2.4MB
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memory/4568-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4568-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB