General
-
Target
linux_arm5.elf
-
Size
5.1MB
-
Sample
250419-xnrg2ss1gv
-
MD5
6eefbf9dab443f26ccd8e5a958e4ecb4
-
SHA1
e0b6efa1abb220fb7dfa353bd8b411bd92ef333e
-
SHA256
8e12863b69f7521d07ac77ce40f5515ecd8645cb6ad16a3c14e36ca6bbc90be5
-
SHA512
9d380f1bc839141f302834828716f41cc8f6510df4fedcf13411868a2c0a8d539d4f91852d8ffc88d220085be4c682a7db06bbb83d1120f625904243077c5c5a
-
SSDEEP
49152:fRUSs+02w+ta7vySpuJhHmGqkC72Jps+KYfRPVxU1F1:5UST1wQa7aYuf8WV
Behavioral task
behavioral1
Sample
linux_arm5.elf
Resource
debian12-armhf-20240418-en
Malware Config
Extracted
kaiji
2.59.151.111:8080
Targets
-
-
Target
linux_arm5.elf
-
Size
5.1MB
-
MD5
6eefbf9dab443f26ccd8e5a958e4ecb4
-
SHA1
e0b6efa1abb220fb7dfa353bd8b411bd92ef333e
-
SHA256
8e12863b69f7521d07ac77ce40f5515ecd8645cb6ad16a3c14e36ca6bbc90be5
-
SHA512
9d380f1bc839141f302834828716f41cc8f6510df4fedcf13411868a2c0a8d539d4f91852d8ffc88d220085be4c682a7db06bbb83d1120f625904243077c5c5a
-
SSDEEP
49152:fRUSs+02w+ta7vySpuJhHmGqkC72Jps+KYfRPVxU1F1:5UST1wQa7aYuf8WV
-
Renames multiple (1004) 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.
-
Creates/modifies Cron job
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
-
Creates/modifies environment variables
Creating/modifying environment variables is a common persistence mechanism.
-
Enumerates running processes
Discovers information about currently running processes on the system
-
Modifies systemd
Adds/ modifies systemd service files. Likely to achieve persistence.
-
Write file to user bin folder
-
Modifies Bash startup script
-
MITRE ATT&CK Enterprise v16
Persistence
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
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