Analysis
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max time kernel
133s -
max time network
102s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
28-05-2024 00:07
Static task
static1
Behavioral task
behavioral1
Sample
bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe
Resource
win10v2004-20240508-en
General
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Target
bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe
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Size
1.9MB
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MD5
04667d2fd34570b426e85b84eeadaaa7
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SHA1
b84156a0820e19b12935d519c7dc66abc9455df6
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SHA256
bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c
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SHA512
05b218111aacdf3234893972a8dc6465b6fbe73d2961049fbab03709e9b1d7b6e6a36aca6b4495f84fd33f1047aa66400092298a733d376f09388c7d8ff56768
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SSDEEP
49152:CdKfTn6vaJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnhtIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 14 IoCs
Processes:
resource yara_rule behavioral1/memory/3392-1-0x0000000004090000-0x00000000041D9000-memory.dmp family_vidar_v7 behavioral1/memory/1916-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-49-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-50-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-61-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-62-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-63-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/1916-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat568C.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation kat568C.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat568C.tmppid process 1916 kat568C.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 local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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:
bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exedescription pid process target process PID 3392 set thread context of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.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 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat568C.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat568C.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2716 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat568C.tmppid process 1916 kat568C.tmp 1916 kat568C.tmp 1916 kat568C.tmp 1916 kat568C.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exekat568C.tmpcmd.exedescription pid process target process PID 3392 wrote to memory of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.tmp PID 3392 wrote to memory of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.tmp PID 3392 wrote to memory of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.tmp PID 3392 wrote to memory of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.tmp PID 3392 wrote to memory of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.tmp PID 3392 wrote to memory of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.tmp PID 3392 wrote to memory of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.tmp PID 3392 wrote to memory of 1916 3392 bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe kat568C.tmp PID 1916 wrote to memory of 1388 1916 kat568C.tmp cmd.exe PID 1916 wrote to memory of 1388 1916 kat568C.tmp cmd.exe PID 1916 wrote to memory of 1388 1916 kat568C.tmp cmd.exe PID 1388 wrote to memory of 2716 1388 cmd.exe timeout.exe PID 1388 wrote to memory of 2716 1388 cmd.exe timeout.exe PID 1388 wrote to memory of 2716 1388 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe"C:\Users\Admin\AppData\Local\Temp\bed1041a59bd3a02094cf5a3febe69c394028933497c676c32f1bc947325784c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3392 -
C:\Users\Admin\AppData\Local\Temp\kat568C.tmpC:\Users\Admin\AppData\Local\Temp\kat568C.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1916 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat568C.tmp" & rd /s /q "C:\ProgramData\CFHIIEHJKKEC" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2716
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat568C.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1916-49-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-61-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-18-0x000000001B790000-0x000000001B9EF000-memory.dmpFilesize
2.4MB
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memory/1916-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-63-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-62-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-50-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/1916-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/3392-0-0x0000000002240000-0x0000000002241000-memory.dmpFilesize
4KB
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memory/3392-1-0x0000000004090000-0x00000000041D9000-memory.dmpFilesize
1.3MB
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memory/3392-9-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB