Analysis
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max time kernel
90s -
max time network
125s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
29-06-2024 03:00
Static task
static1
Behavioral task
behavioral1
Sample
9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe
Resource
win10v2004-20240611-en
General
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Target
9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe
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Size
2.2MB
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MD5
75fb5b0b682cb9e87c19da1688ae266e
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SHA1
9f12e2279efe96934df0a0d0a769c955b900980a
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SHA256
9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec
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SHA512
e194a130bd5e449aaad53177ecb614968606fd6d17b86d7444ca11f061bc0f0831b9b4c9f887689c167a6f67fbdfa5989333f6d0363f2ef8ebd80961a8135cba
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SSDEEP
49152:qpjNvr9ySAOmw4RHHO+SASagXkJr4MDkUwm:qpjNp7p4RHH8n5A
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 16 IoCs
Processes:
resource yara_rule behavioral2/memory/1420-1-0x00000000040B0000-0x00000000041C0000-memory.dmp family_vidar_v7 behavioral2/memory/576-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-45-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/576-76-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat51D9.tmppid process 576 kat51D9.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 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:
9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exedescription pid process target process PID 1420 set thread context of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.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:
kat51D9.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat51D9.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat51D9.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2520 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat51D9.tmppid process 576 kat51D9.tmp 576 kat51D9.tmp 576 kat51D9.tmp 576 kat51D9.tmp 576 kat51D9.tmp 576 kat51D9.tmp 576 kat51D9.tmp 576 kat51D9.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exekat51D9.tmpcmd.exedescription pid process target process PID 1420 wrote to memory of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.tmp PID 1420 wrote to memory of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.tmp PID 1420 wrote to memory of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.tmp PID 1420 wrote to memory of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.tmp PID 1420 wrote to memory of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.tmp PID 1420 wrote to memory of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.tmp PID 1420 wrote to memory of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.tmp PID 1420 wrote to memory of 576 1420 9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe kat51D9.tmp PID 576 wrote to memory of 4132 576 kat51D9.tmp cmd.exe PID 576 wrote to memory of 4132 576 kat51D9.tmp cmd.exe PID 576 wrote to memory of 4132 576 kat51D9.tmp cmd.exe PID 4132 wrote to memory of 2520 4132 cmd.exe timeout.exe PID 4132 wrote to memory of 2520 4132 cmd.exe timeout.exe PID 4132 wrote to memory of 2520 4132 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe"C:\Users\Admin\AppData\Local\Temp\9f80d8dc87ee7c8708bbaec571f5c73333565987b53a14cc0d80b5ab23b76fec.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1420 -
C:\Users\Admin\AppData\Local\Temp\kat51D9.tmpC:\Users\Admin\AppData\Local\Temp\kat51D9.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:576 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat51D9.tmp" & rd /s /q "C:\ProgramData\KJDGDGDHDGDB" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4132 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2520
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f