Analysis
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max time kernel
93s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
27-05-2024 22:34
Static task
static1
Behavioral task
behavioral1
Sample
932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe
Resource
win10v2004-20240426-en
General
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Target
932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe
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Size
1.9MB
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MD5
715903ea8b18f2dcd1fb01d7bc23905c
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SHA1
a750acdea3c5513f29da3be40cc4cb0b7af0b14b
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SHA256
932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0
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SHA512
8ba005ba028fab5223dbbfe311910c7d9deb84a0a1edb1ae08f530e0b40e4a56481a3f69e66c676f43fa6ab83875a89c7b0c6262067d2f9cbc91454f062f3979
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SSDEEP
49152:CdKfTn6v+JtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnNtIuoITsdZ
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/3172-2-0x0000000003FC0000-0x0000000004109000-memory.dmp family_vidar_v7 behavioral1/memory/4320-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-17-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-18-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-35-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-36-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-52-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-59-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-64-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-65-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/4320-67-0x0000000000400000-0x0000000000646000-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:
kat4093.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation kat4093.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat4093.tmppid process 4320 kat4093.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:
932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exedescription pid process target process PID 3172 set thread context of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.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:
kat4093.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat4093.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2504 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat4093.tmppid process 4320 kat4093.tmp 4320 kat4093.tmp 4320 kat4093.tmp 4320 kat4093.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exekat4093.tmpcmd.exedescription pid process target process PID 3172 wrote to memory of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.tmp PID 3172 wrote to memory of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.tmp PID 3172 wrote to memory of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.tmp PID 3172 wrote to memory of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.tmp PID 3172 wrote to memory of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.tmp PID 3172 wrote to memory of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.tmp PID 3172 wrote to memory of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.tmp PID 3172 wrote to memory of 4320 3172 932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe kat4093.tmp PID 4320 wrote to memory of 2252 4320 kat4093.tmp cmd.exe PID 4320 wrote to memory of 2252 4320 kat4093.tmp cmd.exe PID 4320 wrote to memory of 2252 4320 kat4093.tmp cmd.exe PID 2252 wrote to memory of 2504 2252 cmd.exe timeout.exe PID 2252 wrote to memory of 2504 2252 cmd.exe timeout.exe PID 2252 wrote to memory of 2504 2252 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe"C:\Users\Admin\AppData\Local\Temp\932e79e8abb5097a47c93196979c3e3bfd80bc69bca9c2305d31b2a748cf38b0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3172 -
C:\Users\Admin\AppData\Local\Temp\kat4093.tmpC:\Users\Admin\AppData\Local\Temp\kat4093.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4320 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat4093.tmp" & rd /s /q "C:\ProgramData\BGDAAKJJDAAK" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2504
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat4093.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/3172-10-0x0000000000400000-0x00000000005EC000-memory.dmpFilesize
1.9MB
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memory/3172-2-0x0000000003FC0000-0x0000000004109000-memory.dmpFilesize
1.3MB
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memory/3172-0-0x0000000002360000-0x0000000002361000-memory.dmpFilesize
4KB
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memory/4320-18-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-36-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-17-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-20-0x000000001B7D0000-0x000000001BA2F000-memory.dmpFilesize
2.4MB
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memory/4320-35-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-52-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-59-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-64-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-65-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4320-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB