Analysis
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max time kernel
39s -
max time network
54s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
01-07-2024 00:26
Static task
static1
Behavioral task
behavioral1
Sample
a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe
Resource
win10v2004-20240226-en
General
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Target
a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe
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Size
2.2MB
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MD5
597277944cd8ddf71c2154e51da67fba
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SHA1
566349102869a4ca206f77f84d738dddf5f2eada
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SHA256
a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569
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SHA512
f9d4000891f5c4a14b40f00f58af23ff6689c8eac5a05a4fb8125fbf6e5e5d953480fef5a089d292483b9d29f3f451a3b73c6ebb0da29f1d7ea65bd1a66f33aa
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXfeU2MZQti1u8LnsDJY6WpEYGYG: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 behavioral2/memory/1284-1-0x0000000004030000-0x0000000004143000-memory.dmp family_vidar_v7 behavioral2/memory/560-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/560-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/560-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/560-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/560-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/560-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/560-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/560-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat7C92.tmppid process 560 kat7C92.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:
a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exedescription pid process target process PID 1284 set thread context of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.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:
kat7C92.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat7C92.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7C92.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4212 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat7C92.tmppid process 560 kat7C92.tmp 560 kat7C92.tmp 560 kat7C92.tmp 560 kat7C92.tmp 560 kat7C92.tmp 560 kat7C92.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exekat7C92.tmpcmd.exedescription pid process target process PID 1284 wrote to memory of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.tmp PID 1284 wrote to memory of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.tmp PID 1284 wrote to memory of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.tmp PID 1284 wrote to memory of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.tmp PID 1284 wrote to memory of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.tmp PID 1284 wrote to memory of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.tmp PID 1284 wrote to memory of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.tmp PID 1284 wrote to memory of 560 1284 a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe kat7C92.tmp PID 560 wrote to memory of 1084 560 kat7C92.tmp cmd.exe PID 560 wrote to memory of 1084 560 kat7C92.tmp cmd.exe PID 560 wrote to memory of 1084 560 kat7C92.tmp cmd.exe PID 1084 wrote to memory of 4212 1084 cmd.exe timeout.exe PID 1084 wrote to memory of 4212 1084 cmd.exe timeout.exe PID 1084 wrote to memory of 4212 1084 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe"C:\Users\Admin\AppData\Local\Temp\a5d5d5fe7e0e7ad239c115c9c89f2e1d5651da20e98100cfa85a6d2cce699569.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat7C92.tmpC:\Users\Admin\AppData\Local\Temp\kat7C92.tmp2⤵
- 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\kat7C92.tmp" & rd /s /q "C:\ProgramData\EGDAEBGIDBGH" & 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
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat7C92.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/560-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/560-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/560-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/560-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/560-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/560-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/560-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/560-15-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1284-0-0x00000000023B0000-0x00000000023B1000-memory.dmpFilesize
4KB
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memory/1284-1-0x0000000004030000-0x0000000004143000-memory.dmpFilesize
1.1MB
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memory/1284-9-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB