General
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Target
linux_arm5.elf
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Size
5.1MB
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Sample
241108-lcgmxszemd
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MD5
7ae2bf2f9f14a7d12ddcabd35701ce5d
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SHA1
9322e6ec979fb4e065ca9570e8289fb8f82aabe0
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SHA256
aedf713c05a9a68bf13e0485a626a2ee064cb7579ecdfb23b4098fab55dd3f2e
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SHA512
3aff84a8ebd51c030f817e736a9eb338448b93996a90f16b9310d8ead490fe6fa10e2760b484bfc12b6a8469ed5a958e9ef44cb52ff6815b27a0231499b0989a
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SSDEEP
49152:QtKY0CdO+kBRx0Tg0qTecEG7meYuhr+lYfQMcU1F1:OKY3U+qRxQ3qK5M
Behavioral task
behavioral1
Sample
linux_arm5.elf
Resource
debian9-armhf-20240418-en
Malware Config
Extracted
kaiji
154.201.84.237:7850
Targets
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Target
linux_arm5.elf
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Size
5.1MB
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MD5
7ae2bf2f9f14a7d12ddcabd35701ce5d
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SHA1
9322e6ec979fb4e065ca9570e8289fb8f82aabe0
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SHA256
aedf713c05a9a68bf13e0485a626a2ee064cb7579ecdfb23b4098fab55dd3f2e
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SHA512
3aff84a8ebd51c030f817e736a9eb338448b93996a90f16b9310d8ead490fe6fa10e2760b484bfc12b6a8469ed5a958e9ef44cb52ff6815b27a0231499b0989a
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SSDEEP
49152:QtKY0CdO+kBRx0Tg0qTecEG7meYuhr+lYfQMcU1F1:OKY3U+qRxQ3qK5M
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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