General
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Target
linux_arm7.elf
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Size
2.0MB
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Sample
250416-w94ttstyg1
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MD5
9c069085ca52a2acca2bf52f1171a7da
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SHA1
5c6a4714a083dcb6a44adb2043705d65a4ec61ad
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SHA256
1934d283e13ddcbe0c1c85e4d41d7c27a1261b0f0d9302451b042952e2708a3e
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SHA512
07a87d09d1711c23b95a904d47aa003dfca41fde7af2b3e220bf1dc8f4a4ae4c4ddb2394150652ac50afde4810250418172fdeb7859a664751be5e80354e5034
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SSDEEP
24576:sG/LbVzKHSGLGrs4ICJHfRFMX/vwshhILrZaq7xNpvpPEE93xH/aqVhqHviGC2+q:dj3/aGL2T1
Behavioral task
behavioral1
Sample
linux_arm7.elf
Resource
debian9-armhf-20240729-en
Malware Config
Extracted
kaiji
154.40.47.248:888
Targets
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Target
linux_arm7.elf
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Size
2.0MB
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MD5
9c069085ca52a2acca2bf52f1171a7da
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SHA1
5c6a4714a083dcb6a44adb2043705d65a4ec61ad
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SHA256
1934d283e13ddcbe0c1c85e4d41d7c27a1261b0f0d9302451b042952e2708a3e
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SHA512
07a87d09d1711c23b95a904d47aa003dfca41fde7af2b3e220bf1dc8f4a4ae4c4ddb2394150652ac50afde4810250418172fdeb7859a664751be5e80354e5034
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SSDEEP
24576:sG/LbVzKHSGLGrs4ICJHfRFMX/vwshhILrZaq7xNpvpPEE93xH/aqVhqHviGC2+q:dj3/aGL2T1
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Kaiji
Kaiji payload
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Kaiji family
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Executes dropped EXE
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Modifies Watchdog functionality
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
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Creates/modifies Cron job
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
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Creates/modifies environment variables
Creating/modifying environment variables is a common persistence mechanism.
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Enumerates running processes
Discovers information about currently running processes on the system
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Write file to user bin folder
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Modifies Bash startup script
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MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Unix Shell
1Scheduled Task/Job
1Cron
1Persistence
Boot or Logon Autostart Execution
2Boot or Logon Initialization Scripts
1RC Scripts
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1Privilege Escalation
Boot or Logon Autostart Execution
2Boot or Logon Initialization Scripts
1RC Scripts
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1