Analysis
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max time kernel
147s -
max time network
151s -
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 02:11
Static task
static1
Behavioral task
behavioral1
Sample
98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe
Resource
win10v2004-20240611-en
General
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Target
98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe
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Size
2.2MB
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MD5
d1fbd57718481dcd499d3f1a9d9df679
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SHA1
b3f8780acc6b70cb4764062d2e357b004e21169d
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SHA256
98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae
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SHA512
dca744861ef983fea86ffeea924604b3fef8145cd7dacb3d41eb2ecf491e17f217bd44abcbf60298747c5918318cc0663af8844b66822797a6e4563af724167b
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SSDEEP
49152:qpjNvr9ySAOmw4lHHO+SASagXkJr4MDkUwm:qpjNp7p4lHH8n5A
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/3700-2-0x0000000002BC0000-0x0000000002CD0000-memory.dmp family_vidar_v7 behavioral2/memory/4960-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-45-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4960-78-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat38E2.tmppid process 4960 kat38E2.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:
98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exedescription pid process target process PID 3700 set thread context of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.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:
kat38E2.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat38E2.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat38E2.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2448 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat38E2.tmppid process 4960 kat38E2.tmp 4960 kat38E2.tmp 4960 kat38E2.tmp 4960 kat38E2.tmp 4960 kat38E2.tmp 4960 kat38E2.tmp 4960 kat38E2.tmp 4960 kat38E2.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exekat38E2.tmpcmd.exedescription pid process target process PID 3700 wrote to memory of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.tmp PID 3700 wrote to memory of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.tmp PID 3700 wrote to memory of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.tmp PID 3700 wrote to memory of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.tmp PID 3700 wrote to memory of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.tmp PID 3700 wrote to memory of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.tmp PID 3700 wrote to memory of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.tmp PID 3700 wrote to memory of 4960 3700 98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe kat38E2.tmp PID 4960 wrote to memory of 2284 4960 kat38E2.tmp cmd.exe PID 4960 wrote to memory of 2284 4960 kat38E2.tmp cmd.exe PID 4960 wrote to memory of 2284 4960 kat38E2.tmp cmd.exe PID 2284 wrote to memory of 2448 2284 cmd.exe timeout.exe PID 2284 wrote to memory of 2448 2284 cmd.exe timeout.exe PID 2284 wrote to memory of 2448 2284 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe"C:\Users\Admin\AppData\Local\Temp\98496aa5cf6b6ecc3f5f858e236eb15fdc029114f04c389c6bf601f962c8c9ae.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3700 -
C:\Users\Admin\AppData\Local\Temp\kat38E2.tmpC:\Users\Admin\AppData\Local\Temp\kat38E2.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4960 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat38E2.tmp" & rd /s /q "C:\ProgramData\BAKFBKEHDBGH" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:2284 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:2448
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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