Analysis
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max time kernel
90s -
max time network
131s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-05-2024 19:44
Static task
static1
Behavioral task
behavioral1
Sample
db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe
Resource
win10v2004-20240426-en
General
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Target
db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe
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Size
1.9MB
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MD5
1d396a979d3cb04cf1c983f6276b0782
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SHA1
f53e874e2af9d82bc3ec6b17a95261e0d9cfa414
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SHA256
db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b
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SHA512
262fbffca4d93d0ecb6a7eeb301d07692f1ab7ae86c46f51a3768f4f3e59ca1cca776fc1eab4744302e559c152f056f9691e16dfa699081d32c85ea10b86c09f
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SSDEEP
49152:CdKfTn6v2JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnNtIuoITsdZ
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/464-2-0x0000000004010000-0x0000000004159000-memory.dmp family_vidar_v7 behavioral2/memory/3488-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3488-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3488-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3488-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3488-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3488-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/3488-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4B61.tmppid process 3488 kat4B61.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:
db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exedescription pid process target process PID 464 set thread context of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4B61.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4B61.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat4B61.tmppid process 3488 kat4B61.tmp 3488 kat4B61.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exedescription pid process target process PID 464 wrote to memory of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp PID 464 wrote to memory of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp PID 464 wrote to memory of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp PID 464 wrote to memory of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp PID 464 wrote to memory of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp PID 464 wrote to memory of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp PID 464 wrote to memory of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp PID 464 wrote to memory of 3488 464 db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe kat4B61.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe"C:\Users\Admin\AppData\Local\Temp\db47ed6df9fe3d2a32a69be94ba21d2fa55e7fb1442e6e8af34b8caae55bdf3b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:464 -
C:\Users\Admin\AppData\Local\Temp\kat4B61.tmpC:\Users\Admin\AppData\Local\Temp\kat4B61.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3488
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4B61.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/464-0-0x0000000002320000-0x0000000002321000-memory.dmpFilesize
4KB
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memory/464-2-0x0000000004010000-0x0000000004159000-memory.dmpFilesize
1.3MB
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memory/464-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/3488-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3488-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3488-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3488-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3488-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3488-22-0x0000000026040000-0x000000002629F000-memory.dmpFilesize
2.4MB
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memory/3488-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3488-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB