General
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Target
linux_arm7.elf
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Size
5.1MB
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Sample
250216-tk3t5asmhw
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MD5
6f9834c2e56d9a3a677e860c13f1f876
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SHA1
b02b5bbfc1d7a251318394d8e9020def398bd5a4
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SHA256
6431f1372f237455978ffa78e54c0c44868775929988d9ee57c061943cc62d10
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SHA512
ef3168c220a56769cb84a3923a5283c9cc5b5348ce30f84ced9b8709fac51779f11f20e180e6a320394026912cd1ab06362cc44afe5c228de0ac08659f5719e0
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SSDEEP
49152:PJzG9XxZPF773LVPN9GnMbaVZGNJru8cYWPAXq7nLYvVGrzmpxUIU1F1:hzG9Xn53LtN9pbu0Jru8cYWPAXq4
Behavioral task
behavioral1
Sample
linux_arm7.elf
Resource
debian9-armhf-20240729-en
Malware Config
Extracted
kaiji
199.195.252.200:808
Targets
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Target
linux_arm7.elf
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Size
5.1MB
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MD5
6f9834c2e56d9a3a677e860c13f1f876
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SHA1
b02b5bbfc1d7a251318394d8e9020def398bd5a4
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SHA256
6431f1372f237455978ffa78e54c0c44868775929988d9ee57c061943cc62d10
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SHA512
ef3168c220a56769cb84a3923a5283c9cc5b5348ce30f84ced9b8709fac51779f11f20e180e6a320394026912cd1ab06362cc44afe5c228de0ac08659f5719e0
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SSDEEP
49152:PJzG9XxZPF773LVPN9GnMbaVZGNJru8cYWPAXq7nLYvVGrzmpxUIU1F1:hzG9Xn53LtN9pbu0Jru8cYWPAXq4
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Kaiji
Kaiji payload
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Kaiji family
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kaiji_chaosbot
Chaos-variant payload
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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 v15
Persistence
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