Analysis
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max time kernel
146s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 06:03
Static task
static1
Behavioral task
behavioral1
Sample
b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe
Resource
win10v2004-20240508-en
General
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Target
b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe
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Size
2.2MB
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MD5
024dff98502d2f4f8da0c57038ad21b3
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SHA1
77b5f4b639ebf423312018aa006ae7d60864a982
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SHA256
b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754
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SHA512
c48685d1ca5ef48cccc6f04efe2bfaa30d72f6f583f0d2b2e6f2d06ea56271fec4d698b34891679ee7d6c4a371a3ffeca021eb72a29746acb580a02d828aa52d
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SSDEEP
49152:qpjNvr9ySAOmw4JHHO+SASagXkJr4MDkUwm:qpjNp7p4JHH8n5A
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 9 IoCs
Processes:
resource yara_rule behavioral2/memory/4404-1-0x00000000040A0000-0x00000000041B0000-memory.dmp family_vidar_v7 behavioral2/memory/3692-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3692-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3692-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3692-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3692-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3692-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3692-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3692-17-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat6793.tmppid process 3692 kat6793.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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:
b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exedescription pid process target process PID 4404 set thread context of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat6793.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat6793.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat6793.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3068 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat6793.tmppid process 3692 kat6793.tmp 3692 kat6793.tmp 3692 kat6793.tmp 3692 kat6793.tmp 3692 kat6793.tmp 3692 kat6793.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exekat6793.tmpcmd.exedescription pid process target process PID 4404 wrote to memory of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp PID 4404 wrote to memory of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp PID 4404 wrote to memory of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp PID 4404 wrote to memory of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp PID 4404 wrote to memory of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp PID 4404 wrote to memory of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp PID 4404 wrote to memory of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp PID 4404 wrote to memory of 3692 4404 b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe kat6793.tmp PID 3692 wrote to memory of 5012 3692 kat6793.tmp cmd.exe PID 3692 wrote to memory of 5012 3692 kat6793.tmp cmd.exe PID 3692 wrote to memory of 5012 3692 kat6793.tmp cmd.exe PID 5012 wrote to memory of 3068 5012 cmd.exe timeout.exe PID 5012 wrote to memory of 3068 5012 cmd.exe timeout.exe PID 5012 wrote to memory of 3068 5012 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe"C:\Users\Admin\AppData\Local\Temp\b35ac26f3318bbb3881a91e107052f2e239ec7d70d1389b576fd0df91394b754.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat6793.tmpC:\Users\Admin\AppData\Local\Temp\kat6793.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6793.tmp" & rd /s /q "C:\ProgramData\AAEGHJKJKKJD" & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
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\kat6793.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3692-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3692-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3692-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3692-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3692-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3692-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3692-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3692-17-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4404-0-0x0000000002590000-0x0000000002591000-memory.dmpFilesize
4KB
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memory/4404-1-0x00000000040A0000-0x00000000041B0000-memory.dmpFilesize
1.1MB
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memory/4404-9-0x0000000000400000-0x0000000000635000-memory.dmpFilesize
2.2MB