Analysis
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max time kernel
146s -
max time network
153s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
01-07-2024 03:14
Static task
static1
Behavioral task
behavioral1
Sample
d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe
Resource
win10v2004-20240508-en
General
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Target
d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe
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Size
2.2MB
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MD5
652cb6fc39f413184bcf86e1333ffbde
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SHA1
8189af2450d3ce5b0b1162e1d751b16ad6da4324
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SHA256
d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6
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SHA512
a0429a97b65a5c3659ea6370d99971ee379488cb68695ad5a46c48c4b126acb3d0607dc785d171420ccbddce176d57394f866ea898d34f74870cf8377596660b
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXHdU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPi21tuuIeNHYGY0LzjsJxK
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/336-1-0x0000000004180000-0x0000000004293000-memory.dmp family_vidar_v7 behavioral2/memory/2500-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2500-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2500-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2500-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2500-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2500-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2500-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2500-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat4E6E.tmppid process 2500 kat4E6E.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:
d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exedescription pid process target process PID 336 set thread context of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.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:
kat4E6E.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat4E6E.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4E6E.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2156 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat4E6E.tmppid process 2500 kat4E6E.tmp 2500 kat4E6E.tmp 2500 kat4E6E.tmp 2500 kat4E6E.tmp 2500 kat4E6E.tmp 2500 kat4E6E.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exekat4E6E.tmpcmd.exedescription pid process target process PID 336 wrote to memory of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.tmp PID 336 wrote to memory of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.tmp PID 336 wrote to memory of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.tmp PID 336 wrote to memory of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.tmp PID 336 wrote to memory of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.tmp PID 336 wrote to memory of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.tmp PID 336 wrote to memory of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.tmp PID 336 wrote to memory of 2500 336 d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe kat4E6E.tmp PID 2500 wrote to memory of 3512 2500 kat4E6E.tmp cmd.exe PID 2500 wrote to memory of 3512 2500 kat4E6E.tmp cmd.exe PID 2500 wrote to memory of 3512 2500 kat4E6E.tmp cmd.exe PID 3512 wrote to memory of 2156 3512 cmd.exe timeout.exe PID 3512 wrote to memory of 2156 3512 cmd.exe timeout.exe PID 3512 wrote to memory of 2156 3512 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe"C:\Users\Admin\AppData\Local\Temp\d132b1d89ca3905c541a784386520190ef61bc0d621e341e8b2093164c6cfde6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4E6E.tmpC:\Users\Admin\AppData\Local\Temp\kat4E6E.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\kat4E6E.tmp" & rd /s /q "C:\ProgramData\AKKKECBKKECG" & 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\kat4E6E.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/336-0-0x00000000024E0000-0x00000000024E1000-memory.dmpFilesize
4KB
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memory/336-1-0x0000000004180000-0x0000000004293000-memory.dmpFilesize
1.1MB
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memory/336-10-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/2500-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2500-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2500-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2500-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2500-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2500-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2500-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2500-15-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB