Analysis
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max time kernel
90s -
max time network
127s -
platform
windows11-21h2_x64 -
resource
win11-20240419-en -
resource tags
arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 05:00
Static task
static1
Behavioral task
behavioral1
Sample
4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe
Resource
win10v2004-20240611-en
General
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Target
4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe
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Size
2.2MB
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MD5
decf323d9dfc1e720555c52139b567ec
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SHA1
ca2c4a3d08238089d75f38da6d3697ec671dfca7
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SHA256
4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196
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SHA512
0e2ff1169fa4ff0c9d11b1ad30e5b31d871d3f0550942301d62421ad2502f8d1cc16cdfd0e6877ada90f3c202bdf75387ba649332d6361642bba8c9d7760e726
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SSDEEP
49152:qpjNvr9ySAOmw4pHHO+SASagXkJr4MDkUwm:qpjNp7p4pHH8n5A
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 13 IoCs
Processes:
resource yara_rule behavioral2/memory/2472-2-0x0000000004090000-0x00000000041A0000-memory.dmp family_vidar_v7 behavioral2/memory/1412-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-59-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-60-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-71-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-72-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/1412-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat608F.tmppid process 1412 kat608F.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:
4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exedescription pid process target process PID 2472 set thread context of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.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:
kat608F.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat608F.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat608F.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 764 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat608F.tmppid process 1412 kat608F.tmp 1412 kat608F.tmp 1412 kat608F.tmp 1412 kat608F.tmp 1412 kat608F.tmp 1412 kat608F.tmp 1412 kat608F.tmp 1412 kat608F.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exekat608F.tmpcmd.exedescription pid process target process PID 2472 wrote to memory of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.tmp PID 2472 wrote to memory of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.tmp PID 2472 wrote to memory of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.tmp PID 2472 wrote to memory of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.tmp PID 2472 wrote to memory of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.tmp PID 2472 wrote to memory of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.tmp PID 2472 wrote to memory of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.tmp PID 2472 wrote to memory of 1412 2472 4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe kat608F.tmp PID 1412 wrote to memory of 736 1412 kat608F.tmp cmd.exe PID 1412 wrote to memory of 736 1412 kat608F.tmp cmd.exe PID 1412 wrote to memory of 736 1412 kat608F.tmp cmd.exe PID 736 wrote to memory of 764 736 cmd.exe timeout.exe PID 736 wrote to memory of 764 736 cmd.exe timeout.exe PID 736 wrote to memory of 764 736 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe"C:\Users\Admin\AppData\Local\Temp\4b6e203fb95df8b0f4fcbffcc242cd3ece251acd1048964ce90f5153adea4196.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat608F.tmpC:\Users\Admin\AppData\Local\Temp\kat608F.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\kat608F.tmp" & rd /s /q "C:\ProgramData\EBGIDGCAFCBK" & 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\kat608F.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1412-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-27-0x000000002F6A0000-0x000000002F8FF000-memory.dmpFilesize
2.4MB
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memory/1412-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-75-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-72-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-71-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-42-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-43-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-59-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/1412-60-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/2472-9-0x0000000000400000-0x0000000000635000-memory.dmpFilesize
2.2MB
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memory/2472-0-0x00000000024A0000-0x00000000024A1000-memory.dmpFilesize
4KB
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memory/2472-2-0x0000000004090000-0x00000000041A0000-memory.dmpFilesize
1.1MB