Analysis
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max time kernel
42s -
max time network
52s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
29-06-2024 05:23
Static task
static1
Behavioral task
behavioral1
Sample
44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe
Resource
win10v2004-20240508-en
General
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Target
44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe
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Size
2.2MB
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MD5
c8ccf705939a046da24217378cd35c82
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SHA1
ae75b4150dafc1a1653dff3827339f8bcd3b8c8c
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SHA256
44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0
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SHA512
5b59936b02998b33a9a22ab16b894ddc6248655d7f8401ff77facb382d2e935e348da69105aa3446610fe1e16aab48a8d877476a42acf9902413ef3626558c1a
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SSDEEP
49152:qpjNvr9ySAOmw45HHO+SASagXkJr4MDkUwm:qpjNp7p45HH8n5A
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/2972-2-0x00000000040B0000-0x00000000041C0000-memory.dmp family_vidar_v7 behavioral1/memory/1816-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1816-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1816-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1816-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1816-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1816-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1816-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/1816-17-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat45E2.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation kat45E2.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat45E2.tmppid process 1816 kat45E2.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:
44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exedescription pid process target process PID 2972 set thread context of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.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:
kat45E2.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat45E2.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat45E2.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2968 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat45E2.tmppid process 1816 kat45E2.tmp 1816 kat45E2.tmp 1816 kat45E2.tmp 1816 kat45E2.tmp 1816 kat45E2.tmp 1816 kat45E2.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exekat45E2.tmpcmd.exedescription pid process target process PID 2972 wrote to memory of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.tmp PID 2972 wrote to memory of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.tmp PID 2972 wrote to memory of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.tmp PID 2972 wrote to memory of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.tmp PID 2972 wrote to memory of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.tmp PID 2972 wrote to memory of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.tmp PID 2972 wrote to memory of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.tmp PID 2972 wrote to memory of 1816 2972 44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe kat45E2.tmp PID 1816 wrote to memory of 4884 1816 kat45E2.tmp cmd.exe PID 1816 wrote to memory of 4884 1816 kat45E2.tmp cmd.exe PID 1816 wrote to memory of 4884 1816 kat45E2.tmp cmd.exe PID 4884 wrote to memory of 2968 4884 cmd.exe timeout.exe PID 4884 wrote to memory of 2968 4884 cmd.exe timeout.exe PID 4884 wrote to memory of 2968 4884 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe"C:\Users\Admin\AppData\Local\Temp\44b42608681a174971965e5c26a18cc11e837308ed50517302281039745e69e0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Users\Admin\AppData\Local\Temp\kat45E2.tmpC:\Users\Admin\AppData\Local\Temp\kat45E2.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1816 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat45E2.tmp" & rd /s /q "C:\ProgramData\HDGHJEBFBFHI" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4884 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2968
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f