Analysis
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max time kernel
89s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
26-05-2024 23:05
Static task
static1
Behavioral task
behavioral1
Sample
418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe
Resource
win10v2004-20240508-en
General
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Target
418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe
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Size
2.0MB
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MD5
374eb8818192c4c027bed57ad8b70430
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SHA1
1868c30e1fdf0d910583d11069f0f60a8736ee09
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SHA256
418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb
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SHA512
fe170b74fc2e3142d3aabf77e73aeb0f112e535df691b00bb35aa05e4251de35715521e7b2e09a39c5a1bdd35c49cfaa35f27e1df84f30f0e81700471d6afcd8
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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/4892-2-0x0000000004250000-0x0000000004399000-memory.dmp family_vidar_v7 behavioral2/memory/4212-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-19-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-20-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-37-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-38-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-54-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-55-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-66-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-67-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-68-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral2/memory/4212-71-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat3AE6.tmppid process 4212 kat3AE6.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:
418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exedescription pid process target process PID 4892 set thread context of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.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:
kat3AE6.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat3AE6.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1688 timeout.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
kat3AE6.tmppid process 4212 kat3AE6.tmp 4212 kat3AE6.tmp 4212 kat3AE6.tmp 4212 kat3AE6.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exekat3AE6.tmpcmd.exedescription pid process target process PID 4892 wrote to memory of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.tmp PID 4892 wrote to memory of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.tmp PID 4892 wrote to memory of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.tmp PID 4892 wrote to memory of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.tmp PID 4892 wrote to memory of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.tmp PID 4892 wrote to memory of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.tmp PID 4892 wrote to memory of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.tmp PID 4892 wrote to memory of 4212 4892 418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe kat3AE6.tmp PID 4212 wrote to memory of 2372 4212 kat3AE6.tmp cmd.exe PID 4212 wrote to memory of 2372 4212 kat3AE6.tmp cmd.exe PID 4212 wrote to memory of 2372 4212 kat3AE6.tmp cmd.exe PID 2372 wrote to memory of 1688 2372 cmd.exe timeout.exe PID 2372 wrote to memory of 1688 2372 cmd.exe timeout.exe PID 2372 wrote to memory of 1688 2372 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe"C:\Users\Admin\AppData\Local\Temp\418d379a2131463d8754428c82ae6ff22202c7f44582f692425408ffea66bcbb.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4892 -
C:\Users\Admin\AppData\Local\Temp\kat3AE6.tmpC:\Users\Admin\AppData\Local\Temp\kat3AE6.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4212 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3AE6.tmp" & rd /s /q "C:\ProgramData\BFCGDAAKFHID" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:1688
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat3AE6.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/4212-54-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-22-0x0000000028550000-0x00000000287AF000-memory.dmpFilesize
2.4MB
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memory/4212-71-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-37-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-19-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-38-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-68-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-20-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-67-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-55-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4212-66-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4892-0-0x00000000024B0000-0x00000000024B1000-memory.dmpFilesize
4KB
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memory/4892-2-0x0000000004250000-0x0000000004399000-memory.dmpFilesize
1.3MB
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memory/4892-9-0x0000000000400000-0x0000000000612000-memory.dmpFilesize
2.1MB