General
- Target wj0s.x86_64.elf
- Size 94KB
- Sample260910-gbve6sgr31
- SHA256 82550ff97d953cd7f4278b79f1b2ded0e985e19c0a09e2e3d846d8960a754609
- MD5 bfdbb9ad360fc112f16bde7c823bebb7
- SHA1 5cf30d7e39d822b79ace4678d60ef39e868ffdef
- SHA512 f946fe4a5d5fe5e3cb309785f4a88e6f58912f679a08a49dd3113d5505c233d8e9c80f3e8b807bc118de85491b1fc5ce47d30b7cdb26724bdd65640bfb20f185
- SSDEEP 1536:/WHnD/gPsW8kfbITHAkyTJ0Tw42SsM/328QgKyPl1DvbwbbgLSpeDOT0l0p38+3:/WHDlQcE0c4iKm89hnv8bbgePwk384
- TLSH T1809312DF01E7D1B2FA3B26B014671465A225B072D30447DA0787EB7D94B6AC4EE78E31
- 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 94KB
- SHA256 82550ff97d953cd7f4278b79f1b2ded0e985e19c0a09e2e3d846d8960a754609
- MD5 bfdbb9ad360fc112f16bde7c823bebb7
- SHA1 5cf30d7e39d822b79ace4678d60ef39e868ffdef
- SHA512 f946fe4a5d5fe5e3cb309785f4a88e6f58912f679a08a49dd3113d5505c233d8e9c80f3e8b807bc118de85491b1fc5ce47d30b7cdb26724bdd65640bfb20f185
- SSDEEP 1536:/WHnD/gPsW8kfbITHAkyTJ0Tw42SsM/328QgKyPl1DvbwbbgLSpeDOT0l0p38+3:/WHDlQcE0c4iKm89hnv8bbgePwk384
- TLSH T1809312DF01E7D1B2FA3B26B014671465A225B072D30447DA0787EB7D94B6AC4EE78E31
- 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.
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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
-
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