General
- Target nx86.elf
- Size 152KB
- Sample260409-fg34tsas3p
- SHA256 2bbb387226de2faa8f60eaa2988e6a9a05c6d41b191ef0f24f029b184f260677
- MD5 0ec02e392287789c6f424831250c6be5
- SHA1 5a2a2c89a627d25df9013c6d8e9566c51bd09a40
- SHA512 881381929adf41ad42086a52d38d69c8a98613bcec145b5d42d7369fe188af4d03074a05047018982ba3f41a3f4021311e800bbc594aa72afcf095fb652c0299
- SSDEEP 3072:jWI5PyDWnIhlSa9vsGJhYrBA6NWvY3yjXyHmLhE:B5PyanIhlRvvBw38COhE
- TLSH T155E31781BB43DAF3E85300F011B79B314A32FC3A582BDA91E3797DA1A9515C1E61A77C
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
nx86.elf
Resource
ubuntu1804-amd64-20260127-en
Malware Config
Extracted
-
mirai
-
MIRAI
Targets
-
- Target nx86.elf
- Size 152KB
- SHA256 2bbb387226de2faa8f60eaa2988e6a9a05c6d41b191ef0f24f029b184f260677
- MD5 0ec02e392287789c6f424831250c6be5
- SHA1 5a2a2c89a627d25df9013c6d8e9566c51bd09a40
- SHA512 881381929adf41ad42086a52d38d69c8a98613bcec145b5d42d7369fe188af4d03074a05047018982ba3f41a3f4021311e800bbc594aa72afcf095fb652c0299
- SSDEEP 3072:jWI5PyDWnIhlSa9vsGJhYrBA6NWvY3yjXyHmLhE:B5PyanIhlRvvBw38COhE
- TLSH T155E31781BB43DAF3E85300F011B79B314A32FC3A582BDA91E3797DA1A9515C1E61A77C
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Modifies the dynamic linker configuration file
Malware can modify the configuration file of the dynamic linker to preload malicous libraries with every executed process.
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File and Directory Permissions Modification
Adversaries may modify file or directory permissions to evade defenses.
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Deletes itself
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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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Modifies hosts file
Adds to hosts file used for mapping hosts to IP addresses.
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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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Modifies systemd
Adds/ modifies systemd service files. Likely to achieve persistence.
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Write file to user bin folder
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Modifies Bash startup script
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Reads process memory
Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
4XDG Autostart Entries
1Boot or Logon Initialization Scripts
2RC Scripts
2Create or Modify System Process
1Systemd Service
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
2Dynamic Linker Hijacking
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1Privilege Escalation
Boot or Logon Autostart Execution
4XDG Autostart Entries
1Boot or Logon Initialization Scripts
2RC Scripts
2Create or Modify System Process
1Systemd Service
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
2Dynamic Linker Hijacking
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1