Analysis
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max time kernel
41s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
30-06-2024 23:19
Static task
static1
Behavioral task
behavioral1
Sample
349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe
Resource
win10v2004-20240508-en
General
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Target
349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe
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Size
2.2MB
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MD5
97a9176b3a22b5fcc585fd4499dba2f3
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SHA1
6628399d8772d10f5c062e64a3fcb8dd554a010a
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SHA256
349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c
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SHA512
b264e040eeb49a6bc8030d3d64cd210a58a8f4a74b6dad027989d307db361a548865fb4496cca86fc6a3cd94ae60835387cbc3957e5026c80f86dce5dfd229c3
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXfqU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPp21tuuIeNHYGY0LzjsJxK
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/2808-2-0x0000000004030000-0x0000000004143000-memory.dmp family_vidar_v7 behavioral1/memory/3660-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3660-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3660-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3660-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3660-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3660-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3660-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/3660-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat4769.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation kat4769.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat4769.tmppid process 3660 kat4769.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:
349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exedescription pid process target process PID 2808 set thread context of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.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:
kat4769.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat4769.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4769.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1076 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat4769.tmppid process 3660 kat4769.tmp 3660 kat4769.tmp 3660 kat4769.tmp 3660 kat4769.tmp 3660 kat4769.tmp 3660 kat4769.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exekat4769.tmpcmd.exedescription pid process target process PID 2808 wrote to memory of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.tmp PID 2808 wrote to memory of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.tmp PID 2808 wrote to memory of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.tmp PID 2808 wrote to memory of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.tmp PID 2808 wrote to memory of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.tmp PID 2808 wrote to memory of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.tmp PID 2808 wrote to memory of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.tmp PID 2808 wrote to memory of 3660 2808 349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe kat4769.tmp PID 3660 wrote to memory of 3312 3660 kat4769.tmp cmd.exe PID 3660 wrote to memory of 3312 3660 kat4769.tmp cmd.exe PID 3660 wrote to memory of 3312 3660 kat4769.tmp cmd.exe PID 3312 wrote to memory of 1076 3312 cmd.exe timeout.exe PID 3312 wrote to memory of 1076 3312 cmd.exe timeout.exe PID 3312 wrote to memory of 1076 3312 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe"C:\Users\Admin\AppData\Local\Temp\349d8bd0d84ffbefc03f066dd4e2494949f3e6f24508ff127f86d5a52edd4b6c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat4769.tmpC:\Users\Admin\AppData\Local\Temp\kat4769.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\kat4769.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
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4769.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2808-0-0x0000000000810000-0x0000000000811000-memory.dmpFilesize
4KB
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memory/2808-2-0x0000000004030000-0x0000000004143000-memory.dmpFilesize
1.1MB
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memory/2808-9-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/3660-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3660-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3660-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3660-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3660-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3660-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3660-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3660-15-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB