Analysis
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max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
01-07-2024 12:19
Static task
static1
Behavioral task
behavioral1
Sample
ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe
Resource
win10v2004-20240508-en
General
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Target
ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe
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Size
2.2MB
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MD5
3cbdca1ecf107b5483a2f67eaa89a707
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SHA1
9afe261394209177f9b4ff5b4d422c0da4a25d43
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SHA256
ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9
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SHA512
472450a6b61ce6dae74ec13bf51f36c0bd3d5cb2226e635226b94ba4bb571b7cc7cdd5b8c9eb4b172904eb13a6c92207c4febae2e03f65385b0187292680d582
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXbkU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPf21tuuIeNHYGY0LzjsJxK
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 behavioral1/memory/4244-2-0x0000000004240000-0x0000000004353000-memory.dmp family_vidar_v7 behavioral1/memory/4156-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4156-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4156-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4156-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4156-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4156-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4156-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/4156-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat54F6.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation kat54F6.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat54F6.tmppid process 4156 kat54F6.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:
ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exedescription pid process target process PID 4244 set thread context of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.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:
kat54F6.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat54F6.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat54F6.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1428 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat54F6.tmppid process 4156 kat54F6.tmp 4156 kat54F6.tmp 4156 kat54F6.tmp 4156 kat54F6.tmp 4156 kat54F6.tmp 4156 kat54F6.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exekat54F6.tmpcmd.exedescription pid process target process PID 4244 wrote to memory of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.tmp PID 4244 wrote to memory of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.tmp PID 4244 wrote to memory of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.tmp PID 4244 wrote to memory of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.tmp PID 4244 wrote to memory of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.tmp PID 4244 wrote to memory of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.tmp PID 4244 wrote to memory of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.tmp PID 4244 wrote to memory of 4156 4244 ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe kat54F6.tmp PID 4156 wrote to memory of 4744 4156 kat54F6.tmp cmd.exe PID 4156 wrote to memory of 4744 4156 kat54F6.tmp cmd.exe PID 4156 wrote to memory of 4744 4156 kat54F6.tmp cmd.exe PID 4744 wrote to memory of 1428 4744 cmd.exe timeout.exe PID 4744 wrote to memory of 1428 4744 cmd.exe timeout.exe PID 4744 wrote to memory of 1428 4744 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe"C:\Users\Admin\AppData\Local\Temp\ae9b8a2935bca5b773f906cf2da421b6e294e0c21cffd986f9ec779bfa3a31d9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat54F6.tmpC:\Users\Admin\AppData\Local\Temp\kat54F6.tmp2⤵
- Checks computer location settings
- 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\kat54F6.tmp" & rd /s /q "C:\ProgramData\CFHIIJDBKEGI" & 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\kat54F6.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/4156-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4156-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4156-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4156-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4156-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4156-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4156-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4156-15-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4244-0-0x0000000000940000-0x0000000000941000-memory.dmpFilesize
4KB
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memory/4244-2-0x0000000004240000-0x0000000004353000-memory.dmpFilesize
1.1MB
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memory/4244-9-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB