Analysis
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max time kernel
146s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 04:38
Static task
static1
Behavioral task
behavioral1
Sample
c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe
Resource
win10v2004-20240508-en
General
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Target
c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe
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Size
2.2MB
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MD5
ec8aae0fdf3af9acfc55d7c4d4a65d41
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SHA1
c421d946b429eb7f594ae2c29be2aafd16fd4eb9
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SHA256
c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424
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SHA512
dbf8920983a8ffd99125ce304d2dcdbcf4b0f26027609c3f15d221a6f013ccb2dc75340597f93664f1cc0ab2b4154b449d4cbf4c92f669bf2b15c9239e6d52dc
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SSDEEP
49152:qpjNvr9ySAOmw41HHO+SASagXkJr4MDkUwm:qpjNp7p41HH8n5A
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral2/memory/1072-2-0x0000000002C20000-0x0000000002D30000-memory.dmp family_vidar_v7 behavioral2/memory/4524-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4524-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4524-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4524-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4524-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4524-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4524-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat4CC8.tmppid process 4524 kat4CC8.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:
c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exedescription pid process target process PID 1072 set thread context of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat4CC8.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4CC8.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat4CC8.tmp -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat4CC8.tmppid process 4524 kat4CC8.tmp 4524 kat4CC8.tmp 4524 kat4CC8.tmp 4524 kat4CC8.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exedescription pid process target process PID 1072 wrote to memory of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp PID 1072 wrote to memory of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp PID 1072 wrote to memory of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp PID 1072 wrote to memory of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp PID 1072 wrote to memory of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp PID 1072 wrote to memory of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp PID 1072 wrote to memory of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp PID 1072 wrote to memory of 4524 1072 c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe kat4CC8.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe"C:\Users\Admin\AppData\Local\Temp\c852d91ef98070e7c2dc725c9966d716dbf411a76477b5de7e86203e55013424.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Users\Admin\AppData\Local\Temp\kat4CC8.tmpC:\Users\Admin\AppData\Local\Temp\kat4CC8.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:4524
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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