Analysis
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max time kernel
90s -
max time network
126s -
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 23:54
Static task
static1
Behavioral task
behavioral1
Sample
e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe
Resource
win10v2004-20240226-en
General
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Target
e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe
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Size
2.2MB
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MD5
c3380bde01dd46281b618d9c59146a28
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SHA1
15ee1060b509c90a06ddea24068d2744b8725c53
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SHA256
e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b
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SHA512
f23d9342fa01e116fbf878fc645038c010c56fa0818413fd5df4ceae1f628f2b9844797e943767b29171d2bfa414b836b8f67e371faf52d88a5116d61f0eeacb
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SSDEEP
49152:qpjNvr9ySAOmw41HHO+SASagXkJr4MDkUwm:qpjNp7p41HH8n5A
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/5036-1-0x0000000002A30000-0x0000000002B40000-memory.dmp family_vidar_v7 behavioral2/memory/5088-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-45-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-69-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/5088-78-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat57C5.tmppid process 5088 kat57C5.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:
e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exedescription pid process target process PID 5036 set thread context of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.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:
kat57C5.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat57C5.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat57C5.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3056 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat57C5.tmppid process 5088 kat57C5.tmp 5088 kat57C5.tmp 5088 kat57C5.tmp 5088 kat57C5.tmp 5088 kat57C5.tmp 5088 kat57C5.tmp 5088 kat57C5.tmp 5088 kat57C5.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exekat57C5.tmpcmd.exedescription pid process target process PID 5036 wrote to memory of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.tmp PID 5036 wrote to memory of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.tmp PID 5036 wrote to memory of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.tmp PID 5036 wrote to memory of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.tmp PID 5036 wrote to memory of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.tmp PID 5036 wrote to memory of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.tmp PID 5036 wrote to memory of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.tmp PID 5036 wrote to memory of 5088 5036 e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe kat57C5.tmp PID 5088 wrote to memory of 2176 5088 kat57C5.tmp cmd.exe PID 5088 wrote to memory of 2176 5088 kat57C5.tmp cmd.exe PID 5088 wrote to memory of 2176 5088 kat57C5.tmp cmd.exe PID 2176 wrote to memory of 3056 2176 cmd.exe timeout.exe PID 2176 wrote to memory of 3056 2176 cmd.exe timeout.exe PID 2176 wrote to memory of 3056 2176 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe"C:\Users\Admin\AppData\Local\Temp\e71ab8268d8e4f85c352576393945306fcdd622b69ea1f631198c1b0a753125b.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat57C5.tmpC:\Users\Admin\AppData\Local\Temp\kat57C5.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\kat57C5.tmp" & rd /s /q "C:\ProgramData\HJJEHJJKJEGH" & 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
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat57C5.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/5036-9-0x0000000000400000-0x0000000000635000-memory.dmpFilesize
2.2MB
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memory/5036-1-0x0000000002A30000-0x0000000002B40000-memory.dmpFilesize
1.1MB
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memory/5036-0-0x0000000000910000-0x0000000000911000-memory.dmpFilesize
4KB
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memory/5088-35-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-36-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-24-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-25-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-27-0x000000002D130000-0x000000002D38F000-memory.dmpFilesize
2.4MB
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memory/5088-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-10-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-44-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-45-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-61-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-62-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-69-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-74-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-75-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/5088-78-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB