Analysis
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max time kernel
146s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
24-05-2024 23:48
Static task
static1
Behavioral task
behavioral1
Sample
2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe
Resource
win10v2004-20240508-en
General
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Target
2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe
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Size
2.0MB
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MD5
81f30ef123498f071ffd8a771e9dc405
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SHA1
404ac3ef7f291d5e3109fec3feb365e5e9256122
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SHA256
2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed
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SHA512
cfe6dc8fdc9c6ca621265c37913f938fe0d80017c7ddf21d150cd193a3619303c19adb09478cc64743d597cfa11690c52ba061928957ab6a34337d8d3e99cee4
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SSDEEP
49152:s4K3x1vUWJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18WtIuoITsdZ
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 behavioral2/memory/568-2-0x0000000004060000-0x00000000041A9000-memory.dmp family_vidar_v7 behavioral2/memory/2644-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2644-71-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat62C1.tmppid process 2644 kat62C1.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:
2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exedescription pid process target process PID 568 set thread context of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.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:
kat62C1.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat62C1.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4904 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat62C1.tmppid process 2644 kat62C1.tmp 2644 kat62C1.tmp 2644 kat62C1.tmp 2644 kat62C1.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exekat62C1.tmpcmd.exedescription pid process target process PID 568 wrote to memory of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.tmp PID 568 wrote to memory of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.tmp PID 568 wrote to memory of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.tmp PID 568 wrote to memory of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.tmp PID 568 wrote to memory of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.tmp PID 568 wrote to memory of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.tmp PID 568 wrote to memory of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.tmp PID 568 wrote to memory of 2644 568 2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe kat62C1.tmp PID 2644 wrote to memory of 3712 2644 kat62C1.tmp cmd.exe PID 2644 wrote to memory of 3712 2644 kat62C1.tmp cmd.exe PID 2644 wrote to memory of 3712 2644 kat62C1.tmp cmd.exe PID 3712 wrote to memory of 4904 3712 cmd.exe timeout.exe PID 3712 wrote to memory of 4904 3712 cmd.exe timeout.exe PID 3712 wrote to memory of 4904 3712 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe"C:\Users\Admin\AppData\Local\Temp\2e82254861bdfd26d355b8faa6093edda4fe92505d5ba743c0e5e693e2083eed.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat62C1.tmpC:\Users\Admin\AppData\Local\Temp\kat62C1.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\kat62C1.tmp" & rd /s /q "C:\ProgramData\EHCFBFBAEBKJ" & 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\kat62C1.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/568-10-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/568-2-0x0000000004060000-0x00000000041A9000-memory.dmpFilesize
1.3MB
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memory/568-0-0x0000000002360000-0x0000000002361000-memory.dmpFilesize
4KB
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memory/2644-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-22-0x0000000026090000-0x00000000262EF000-memory.dmpFilesize
2.4MB
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memory/2644-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-55-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2644-71-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB