General
- Target wj0s.x86_64.elf
- Size 72KB
- Sample260907-h5pbpay1f1
- SHA256 285608245c0193e3c00dfce17e6814653519ecc425fbe3cb23e05622cb04a1a4
- MD5 c4618a35144bf32355abb5bf3ea4c944
- SHA1 c4d3fd3130caf937e93e411b541e7d643140c4e7
- SHA512 695613bc0de4c88ae2ce784c3fe0465fec4a3acf236adb9eba2d708dcc8c567e92112f91a2d294ecf81f1d4c04f0029b4ca7d77d92ec2b7a7d0702f6e7dcdf29
- SSDEEP 1536:wXsKVHJTU7Bd5tMU4OWfd6ljA6vkmfF81l2+u:HKV2fzMU4O8d6djvcT2R
- TLSH T16D73025956AC14A1C068BB331D0D91C4F92AEC0B52ABE70F1A717028CDFF1D3B06AF66
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
wj0s.x86_64.elf
Resource
ubuntu1804-amd64-20260513-en
Malware Config
Targets
-
- Target wj0s.x86_64.elf
- Size 72KB
- SHA256 285608245c0193e3c00dfce17e6814653519ecc425fbe3cb23e05622cb04a1a4
- MD5 c4618a35144bf32355abb5bf3ea4c944
- SHA1 c4d3fd3130caf937e93e411b541e7d643140c4e7
- SHA512 695613bc0de4c88ae2ce784c3fe0465fec4a3acf236adb9eba2d708dcc8c567e92112f91a2d294ecf81f1d4c04f0029b4ca7d77d92ec2b7a7d0702f6e7dcdf29
- SSDEEP 1536:wXsKVHJTU7Bd5tMU4OWfd6ljA6vkmfF81l2+u:HKV2fzMU4O8d6djvcT2R
- TLSH T16D73025956AC14A1C068BB331D0D91C4F92AEC0B52ABE70F1A717028CDFF1D3B06AF66
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Executes dropped EXE
-
Modifies PAM framework files
Modifies Linux PAM framework files, possibly to intercept credentials.
-
Modifies Watchdog functionality
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
-
Modifies the /etc/hosts DNS resolution file
Modifying the /etc/hosts name-resolution file changes IP routing, which can facilitate traffic hijacking or the blocking of (security update) endpoints.
-
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.
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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.
-
Write file to user bin folder
-
Writes file to system bin folder
-
Modifies Bash startup script
-
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
5XDG Autostart Entries
2Boot or Logon Initialization Scripts
2RC Scripts
2Create or Modify System Process
1Systemd Service
1Event Triggered Execution
1Unix Shell Configuration Modification
1Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Modify Authentication Process
1Pluggable Authentication Modules
1Scheduled Task/Job
1Cron
1Privilege Escalation
Boot or Logon Autostart Execution
5XDG Autostart Entries
2Boot or Logon Initialization Scripts
2RC Scripts
2Create 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
1Defense Evasion
Hijack Execution Flow
1Path Interception by PATH Environment Variable
1Impair Defenses
1Indicator Removal
1Clear Linux or Mac System Logs
1Modify Authentication Process
1Pluggable Authentication Modules
1Credential Access
Adversary-in-the-Middle
1Modify Authentication Process
1Pluggable Authentication Modules
1OS Credential Dumping
1Proc Filesystem
1