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
30-06-2024 21:00
Static task
static1
Behavioral task
behavioral1
Sample
2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe
Resource
win10v2004-20240226-en
General
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Target
2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe
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Size
2.2MB
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MD5
f133a7d9de06d03e58d8a8647f3ac8d6
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SHA1
2a097ce4f6870abfebc176c074324cb4388d3368
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SHA256
2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168
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SHA512
0056c12442c2fdc3b90a0e6a6a9625315cb21661712a2e5658e2e836b00834ee981cff875b9f0a52f87d370161c1adcf98449c5c66973e02a4b5af207facf8af
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXHMU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPD21tuuIeNHYGY0LzjsJxK
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 16 IoCs
Processes:
resource yara_rule behavioral2/memory/3428-2-0x0000000002E20000-0x0000000002F33000-memory.dmp family_vidar_v7 behavioral2/memory/1388-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-45-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-69-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1388-76-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat7426.tmppid process 1388 kat7426.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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:
2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exedescription pid process target process PID 3428 set thread context of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.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:
kat7426.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat7426.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7426.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3712 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat7426.tmppid process 1388 kat7426.tmp 1388 kat7426.tmp 1388 kat7426.tmp 1388 kat7426.tmp 1388 kat7426.tmp 1388 kat7426.tmp 1388 kat7426.tmp 1388 kat7426.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exekat7426.tmpcmd.exedescription pid process target process PID 3428 wrote to memory of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.tmp PID 3428 wrote to memory of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.tmp PID 3428 wrote to memory of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.tmp PID 3428 wrote to memory of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.tmp PID 3428 wrote to memory of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.tmp PID 3428 wrote to memory of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.tmp PID 3428 wrote to memory of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.tmp PID 3428 wrote to memory of 1388 3428 2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe kat7426.tmp PID 1388 wrote to memory of 704 1388 kat7426.tmp cmd.exe PID 1388 wrote to memory of 704 1388 kat7426.tmp cmd.exe PID 1388 wrote to memory of 704 1388 kat7426.tmp cmd.exe PID 704 wrote to memory of 3712 704 cmd.exe timeout.exe PID 704 wrote to memory of 3712 704 cmd.exe timeout.exe PID 704 wrote to memory of 3712 704 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe"C:\Users\Admin\AppData\Local\Temp\2458839fd7f696c4b22edfa9abe2872902c5307e070fe320ce0bb5997adc1168.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat7426.tmpC:\Users\Admin\AppData\Local\Temp\kat7426.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\kat7426.tmp" & rd /s /q "C:\ProgramData\JJECAAEHCFIE" & 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
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat7426.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1388-62-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-76-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-27-0x0000000024D40000-0x0000000024F9F000-memory.dmpFilesize
2.4MB
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memory/1388-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-35-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-75-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-44-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-36-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-45-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-61-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-74-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1388-69-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3428-0-0x0000000000C00000-0x0000000000C01000-memory.dmpFilesize
4KB
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memory/3428-2-0x0000000002E20000-0x0000000002F33000-memory.dmpFilesize
1.1MB
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memory/3428-10-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB