Analysis
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max time kernel
146s -
max time network
151s -
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 01:59
Static task
static1
Behavioral task
behavioral1
Sample
de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe
Resource
win10v2004-20240611-en
General
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Target
de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe
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Size
2.2MB
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MD5
bc28298fa8886a83a9b78f7bfa70c967
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SHA1
2aad0ee89fffc24d73923ed849a5acaa947b5d43
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SHA256
de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c
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SHA512
74d027c544c62da2bfb1f71b48a33d424bec8d43b852f08b6ff53be8c25a22afe7ac0def87718c822eba465c4de98c5d92f1d20e44e5512bc0ddc6fc946358b9
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXfkU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPj21tuuIeNHYGY0LzjsJxK
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/1280-1-0x0000000004070000-0x0000000004183000-memory.dmp family_vidar_v7 behavioral2/memory/4992-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4992-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4992-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4992-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4992-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4992-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4992-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4992-17-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat416E.tmppid process 4992 kat416E.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:
de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exedescription pid process target process PID 1280 set thread context of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.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:
kat416E.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat416E.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat416E.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3972 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat416E.tmppid process 4992 kat416E.tmp 4992 kat416E.tmp 4992 kat416E.tmp 4992 kat416E.tmp 4992 kat416E.tmp 4992 kat416E.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exekat416E.tmpcmd.exedescription pid process target process PID 1280 wrote to memory of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.tmp PID 1280 wrote to memory of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.tmp PID 1280 wrote to memory of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.tmp PID 1280 wrote to memory of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.tmp PID 1280 wrote to memory of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.tmp PID 1280 wrote to memory of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.tmp PID 1280 wrote to memory of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.tmp PID 1280 wrote to memory of 4992 1280 de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe kat416E.tmp PID 4992 wrote to memory of 1992 4992 kat416E.tmp cmd.exe PID 4992 wrote to memory of 1992 4992 kat416E.tmp cmd.exe PID 4992 wrote to memory of 1992 4992 kat416E.tmp cmd.exe PID 1992 wrote to memory of 3972 1992 cmd.exe timeout.exe PID 1992 wrote to memory of 3972 1992 cmd.exe timeout.exe PID 1992 wrote to memory of 3972 1992 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe"C:\Users\Admin\AppData\Local\Temp\de0b2e128fd4b48ab5f6a9353f622b119a334d75c661a7e89d742a5b69dced9c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat416E.tmpC:\Users\Admin\AppData\Local\Temp\kat416E.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\kat416E.tmp" & rd /s /q "C:\ProgramData\HJJKFBGCFHCG" & 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\kat416E.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1280-0-0x0000000000900000-0x0000000000901000-memory.dmpFilesize
4KB
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memory/1280-1-0x0000000004070000-0x0000000004183000-memory.dmpFilesize
1.1MB
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memory/1280-9-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/4992-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4992-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4992-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4992-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4992-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4992-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4992-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4992-17-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB