General
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Target
linux_arm6.elf
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Size
2.0MB
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Sample
250412-w7garazjz3
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MD5
3ccd0e1bc9264d7ee4ee164e2fe5d05f
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SHA1
31b7776de4546f5c6c213235ba25c2995a4e6b90
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SHA256
abc1e6c631b4c3ccdc6e1c01ae0eccb91bcfe395085661a3145820bc42991609
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SHA512
0b95064b4f088f9e4701d95a7c8ccdad1952b313ad5b53eeb90f748fc49ce5f245534a36bc3a2e7bdbb38144d61290531d35c8da594e9befc0ea3bd08119d31a
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SSDEEP
24576:JgCbFbDVZ7bVCj3ozPQPTUkrtQ05OYRWNOrdErF4ff1kRrfnyVhv8uofvsRWA1SH:VCWTuM2T1s
Behavioral task
behavioral1
Sample
linux_arm6.elf
Resource
debian9-armhf-20240418-en
Malware Config
Extracted
kaiji
aresweb.456789456.xyz:12345
Targets
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Target
linux_arm6.elf
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Size
2.0MB
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MD5
3ccd0e1bc9264d7ee4ee164e2fe5d05f
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SHA1
31b7776de4546f5c6c213235ba25c2995a4e6b90
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SHA256
abc1e6c631b4c3ccdc6e1c01ae0eccb91bcfe395085661a3145820bc42991609
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SHA512
0b95064b4f088f9e4701d95a7c8ccdad1952b313ad5b53eeb90f748fc49ce5f245534a36bc3a2e7bdbb38144d61290531d35c8da594e9befc0ea3bd08119d31a
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SSDEEP
24576:JgCbFbDVZ7bVCj3ozPQPTUkrtQ05OYRWNOrdErF4ff1kRrfnyVhv8uofvsRWA1SH:VCWTuM2T1s
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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