Analysis
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max time kernel
79s -
max time network
99s -
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 06:52
Static task
static1
Behavioral task
behavioral1
Sample
77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe
Resource
win10v2004-20240611-en
General
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Target
77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe
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Size
2.2MB
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MD5
3c9e5a89c57f9c580d24b94a9903f20b
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SHA1
715b4b2c4c1cc56db6376b466bc470f9dff78c27
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SHA256
77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a
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SHA512
952339c025edc1d847183185c925b10eb4405775df5e9be0de06e68dd80f7ba4144bd482e701dcf98b5f3466e19e59ec4a81322e5a766169dce1243e6b1ee00f
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgX/AU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MP321tuuIeNHYGY0LzjsJxK
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/1480-2-0x00000000041F0000-0x0000000004303000-memory.dmp family_vidar_v7 behavioral2/memory/572-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/572-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/572-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/572-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/572-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/572-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/572-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/572-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat762A.tmppid process 572 kat762A.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:
77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exedescription pid process target process PID 1480 set thread context of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.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:
kat762A.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat762A.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat762A.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4656 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat762A.tmppid process 572 kat762A.tmp 572 kat762A.tmp 572 kat762A.tmp 572 kat762A.tmp 572 kat762A.tmp 572 kat762A.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exekat762A.tmpcmd.exedescription pid process target process PID 1480 wrote to memory of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.tmp PID 1480 wrote to memory of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.tmp PID 1480 wrote to memory of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.tmp PID 1480 wrote to memory of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.tmp PID 1480 wrote to memory of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.tmp PID 1480 wrote to memory of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.tmp PID 1480 wrote to memory of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.tmp PID 1480 wrote to memory of 572 1480 77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe kat762A.tmp PID 572 wrote to memory of 4336 572 kat762A.tmp cmd.exe PID 572 wrote to memory of 4336 572 kat762A.tmp cmd.exe PID 572 wrote to memory of 4336 572 kat762A.tmp cmd.exe PID 4336 wrote to memory of 4656 4336 cmd.exe timeout.exe PID 4336 wrote to memory of 4656 4336 cmd.exe timeout.exe PID 4336 wrote to memory of 4656 4336 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe"C:\Users\Admin\AppData\Local\Temp\77f4b9465cc351331c1769d13db104d2cce6c4468939e3e7c1246aec591c995a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat762A.tmpC:\Users\Admin\AppData\Local\Temp\kat762A.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\kat762A.tmp" & rd /s /q "C:\ProgramData\AKJDAEGCAFII" & 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\kat762A.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/572-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/572-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/572-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/572-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/572-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/572-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/572-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/572-15-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1480-0-0x00000000009E0000-0x00000000009E1000-memory.dmpFilesize
4KB
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memory/1480-2-0x00000000041F0000-0x0000000004303000-memory.dmpFilesize
1.1MB
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memory/1480-9-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB