Analysis
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max time kernel
146s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240426-en -
resource tags
arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system -
submitted
26-05-2024 23:35
Static task
static1
Behavioral task
behavioral1
Sample
6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe
Resource
win10v2004-20240508-en
General
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Target
6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe
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Size
2.0MB
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MD5
d73f74414a8901e5fe110c33426984b6
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SHA1
3c3dee0d190b1418cc5037da53064772879d4f63
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SHA256
6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845
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SHA512
cecabc1a921331b71b04f1b13748d005585508d935ed379ed0dcfa136267b71725f4b5e5adbad8407f51496f22613de01bae2c3942afd34b4ed4ff5a5cb8eb14
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SSDEEP
49152:OePpQEtJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEttIuoITsdZ
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/2060-2-0x0000000004170000-0x00000000042B9000-memory.dmp family_vidar_v7 behavioral2/memory/2464-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/2464-71-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat5072.tmppid process 2464 kat5072.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:
6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exedescription pid process target process PID 2060 set thread context of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.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:
kat5072.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5072.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1600 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat5072.tmppid process 2464 kat5072.tmp 2464 kat5072.tmp 2464 kat5072.tmp 2464 kat5072.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exekat5072.tmpcmd.exedescription pid process target process PID 2060 wrote to memory of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.tmp PID 2060 wrote to memory of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.tmp PID 2060 wrote to memory of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.tmp PID 2060 wrote to memory of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.tmp PID 2060 wrote to memory of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.tmp PID 2060 wrote to memory of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.tmp PID 2060 wrote to memory of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.tmp PID 2060 wrote to memory of 2464 2060 6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe kat5072.tmp PID 2464 wrote to memory of 4860 2464 kat5072.tmp cmd.exe PID 2464 wrote to memory of 4860 2464 kat5072.tmp cmd.exe PID 2464 wrote to memory of 4860 2464 kat5072.tmp cmd.exe PID 4860 wrote to memory of 1600 4860 cmd.exe timeout.exe PID 4860 wrote to memory of 1600 4860 cmd.exe timeout.exe PID 4860 wrote to memory of 1600 4860 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe"C:\Users\Admin\AppData\Local\Temp\6f70feca23db40bc38ee96e342114a34c9391b156f0af2f37bd691c155aee845.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat5072.tmpC:\Users\Admin\AppData\Local\Temp\kat5072.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\kat5072.tmp" & rd /s /q "C:\ProgramData\HCAKFBGCBFHI" & 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\kat5072.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2060-0-0x00000000025A0000-0x00000000025A1000-memory.dmpFilesize
4KB
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memory/2060-2-0x0000000004170000-0x00000000042B9000-memory.dmpFilesize
1.3MB
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memory/2060-10-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB
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memory/2464-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-22-0x0000000026040000-0x000000002629F000-memory.dmpFilesize
2.4MB
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memory/2464-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-55-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2464-71-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB