Analysis
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max time kernel
79s -
max time network
103s -
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 10:58
Static task
static1
Behavioral task
behavioral1
Sample
4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe
Resource
win10v2004-20240508-en
General
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Target
4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe
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Size
2.2MB
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MD5
06f28765742cc1bcbc3247faa706eca2
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SHA1
9df226d0d841101fb71c481151d1dc6a8da4ed2d
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SHA256
4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82
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SHA512
fdb6f214607420ebf1e68cd8a58776f89d9c24b9ec37f8530cc6a3b1666aacaee83d4c3d553ae4b8c6e42d7b1a294a899d676c5c31f02465013259c57fdd0115
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXfsU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPL21tuuIeNHYGY0LzjsJxK
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/4452-1-0x0000000004150000-0x0000000004263000-memory.dmp family_vidar_v7 behavioral1/memory/2596-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2596-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2596-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2596-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2596-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2596-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2596-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2596-17-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat3D47.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation kat3D47.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat3D47.tmppid process 2596 kat3D47.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:
4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exedescription pid process target process PID 4452 set thread context of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.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:
kat3D47.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat3D47.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3D47.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4400 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat3D47.tmppid process 2596 kat3D47.tmp 2596 kat3D47.tmp 2596 kat3D47.tmp 2596 kat3D47.tmp 2596 kat3D47.tmp 2596 kat3D47.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exekat3D47.tmpcmd.exedescription pid process target process PID 4452 wrote to memory of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.tmp PID 4452 wrote to memory of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.tmp PID 4452 wrote to memory of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.tmp PID 4452 wrote to memory of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.tmp PID 4452 wrote to memory of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.tmp PID 4452 wrote to memory of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.tmp PID 4452 wrote to memory of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.tmp PID 4452 wrote to memory of 2596 4452 4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe kat3D47.tmp PID 2596 wrote to memory of 720 2596 kat3D47.tmp cmd.exe PID 2596 wrote to memory of 720 2596 kat3D47.tmp cmd.exe PID 2596 wrote to memory of 720 2596 kat3D47.tmp cmd.exe PID 720 wrote to memory of 4400 720 cmd.exe timeout.exe PID 720 wrote to memory of 4400 720 cmd.exe timeout.exe PID 720 wrote to memory of 4400 720 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe"C:\Users\Admin\AppData\Local\Temp\4624374dd48ebc8c34efa4c37ba8926cbaa3ad6f10d03c806025ac49f614df82.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat3D47.tmpC:\Users\Admin\AppData\Local\Temp\kat3D47.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\kat3D47.tmp" & rd /s /q "C:\ProgramData\KKFCAAKFBAEH" & 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\kat3D47.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2596-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2596-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2596-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2596-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2596-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2596-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2596-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2596-17-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4452-0-0x00000000007F0000-0x00000000007F1000-memory.dmpFilesize
4KB
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memory/4452-1-0x0000000004150000-0x0000000004263000-memory.dmpFilesize
1.1MB
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memory/4452-9-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB