General
- Target 9066394b24a05f71b1908c6761ea0a37e91a4cb9ab1f718e7ed06f2ff72e79cb.elf
- Size 5.1MB
- Sample240922-bsajfavgpr
- SHA256 9066394b24a05f71b1908c6761ea0a37e91a4cb9ab1f718e7ed06f2ff72e79cb
- MD5 eaf55c11dd7e17b897ed38a90fc72903
- SHA1 ead1fae474cd69ace9ec8d6d66cb276e4cfb1880
- SHA512 5a362c92fbae54eebfcb0687f3d44cda90002a9901ed898f9847ea025d9e562fed7df525672ca0c6a25d53aa723e5b068fb904cf235b16b9972ad765597242ca
- SSDEEP 49152:8mTtqFdLBZsYQ8rb/T0vO90d7HjmAFd4A64nsfJWpltZ4GhhAl6e9d1SVq82T8xu:Qobp+GhSXAEo
- MD5 SHA1 SHA512 SSDEEP
Behavioral task
behavioral1
Sample
9066394b24a05f71b1908c6761ea0a37e91a4cb9ab1f718e7ed06f2ff72e79cb.elf
Resource
ubuntu2004-amd64-20240611-en
Malware Config
Extracted
-
kaiji
-
cc.ava9527.cc:60888
Targets
-
- Target 9066394b24a05f71b1908c6761ea0a37e91a4cb9ab1f718e7ed06f2ff72e79cb.elf
- Size 5.1MB
- SHA256 9066394b24a05f71b1908c6761ea0a37e91a4cb9ab1f718e7ed06f2ff72e79cb
- MD5 eaf55c11dd7e17b897ed38a90fc72903
- SHA1 ead1fae474cd69ace9ec8d6d66cb276e4cfb1880
- SHA512 5a362c92fbae54eebfcb0687f3d44cda90002a9901ed898f9847ea025d9e562fed7df525672ca0c6a25d53aa723e5b068fb904cf235b16b9972ad765597242ca
- SSDEEP 49152:8mTtqFdLBZsYQ8rb/T0vO90d7HjmAFd4A64nsfJWpltZ4GhhAl6e9d1SVq82T8xu:Qobp+GhSXAEo
- MD5 SHA1 SHA512 SSDEEP
-
Renames multiple (1156) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Executes dropped EXE
-
Modifies Watchdog functionality
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
-
Reads EFI boot settings
Reads EFI boot settings from the efivars filesystem, may contain security secrets or sensitive data.
-
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
-
Modifies systemd
Adds/ modifies systemd service files. Likely to achieve persistence.
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Write file to user bin folder
-
Modifies Bash startup script
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1Unix Shell
1Scheduled Task/Job
1Cron
1Persistence
Boot or Logon Autostart Execution
3XDG Autostart Entries
1Boot or Logon Initialization Scripts
1RC Scripts
1Create or Modify System Process
1Systemd Service
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Cron
1Privilege Escalation
Boot or Logon Autostart Execution
3XDG Autostart Entries
1Boot or Logon Initialization Scripts
1RC Scripts
1Create or Modify System Process
1Systemd Service
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Scheduled Task/Job
1Cron
1