Analysis
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max time kernel
130s -
max time network
99s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2024 20:45
Static task
static1
Behavioral task
behavioral1
Sample
7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe
Resource
win10v2004-20240426-en
General
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Target
7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe
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Size
2.0MB
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MD5
22728158f77f25b288998a2a5cd43722
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SHA1
3b4aae6521a54e3d710af9081ec367ed64418f0c
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SHA256
7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958
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SHA512
037d860e814fa84ee48fedb5da7d9ef12ff4f1b3e6ba0ce7b6e494981c5bae6694a659d656dc2cb44b47795e9e5ae1b2e3d47609fef417fe12a6972df5efd205
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SSDEEP
49152:s4K3x1vUqJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18qtIuoITsdZ
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 behavioral1/memory/700-1-0x0000000004140000-0x0000000004289000-memory.dmp family_vidar_v7 behavioral1/memory/3084-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3084-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat43DF.tmppid process 3084 kat43DF.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:
7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exedescription pid process target process PID 700 set thread context of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat43DF.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat43DF.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat43DF.tmppid process 3084 kat43DF.tmp 3084 kat43DF.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exedescription pid process target process PID 700 wrote to memory of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp PID 700 wrote to memory of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp PID 700 wrote to memory of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp PID 700 wrote to memory of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp PID 700 wrote to memory of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp PID 700 wrote to memory of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp PID 700 wrote to memory of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp PID 700 wrote to memory of 3084 700 7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe kat43DF.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe"C:\Users\Admin\AppData\Local\Temp\7058a36fce61704f91c27286bd8a33ef9fcea939811e08fc963047698cde5958.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat43DF.tmpC:\Users\Admin\AppData\Local\Temp\kat43DF.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat43DF.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/700-0-0x0000000002260000-0x0000000002261000-memory.dmpFilesize
4KB
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memory/700-1-0x0000000004140000-0x0000000004289000-memory.dmpFilesize
1.3MB
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memory/700-9-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/3084-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3084-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3084-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3084-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3084-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3084-18-0x000000001DC30000-0x000000001DE8F000-memory.dmpFilesize
2.4MB
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memory/3084-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3084-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB