General
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Target
aebdf73b18bc332d45cdc3b9f854eca40d17135bdf40a889fa352ce53383afa1.elf
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Size
5.2MB
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Sample
241028-dntsmayfrd
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MD5
7404e10435af30c30e192c2a02c2a2d4
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SHA1
471de41da156ab887bb9471716e1bd03e31a9648
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SHA256
aebdf73b18bc332d45cdc3b9f854eca40d17135bdf40a889fa352ce53383afa1
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SHA512
e5c68b44723f28aaa70c903e3ccbdf0f4a4d88a00e5aa41a46dcc7ac26b408232f95cedaab1f30bb07ce7f6ef523af3575f1df3dbc1796e11ce8f1201c02f6d1
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SSDEEP
49152:7Xa6xzZWhrb/T4vO90dL3BmAFd4A64nsfJPJ6TdXnT9aqeJaz2xNkapDnYRQoj1L:b2ONLBzSxtST7ElHz
Behavioral task
behavioral1
Sample
aebdf73b18bc332d45cdc3b9f854eca40d17135bdf40a889fa352ce53383afa1.elf
Resource
ubuntu2404-amd64-20240523-en
Malware Config
Extracted
kaiji
154.12.82.11:808
Targets
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Target
aebdf73b18bc332d45cdc3b9f854eca40d17135bdf40a889fa352ce53383afa1.elf
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Size
5.2MB
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MD5
7404e10435af30c30e192c2a02c2a2d4
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SHA1
471de41da156ab887bb9471716e1bd03e31a9648
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SHA256
aebdf73b18bc332d45cdc3b9f854eca40d17135bdf40a889fa352ce53383afa1
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SHA512
e5c68b44723f28aaa70c903e3ccbdf0f4a4d88a00e5aa41a46dcc7ac26b408232f95cedaab1f30bb07ce7f6ef523af3575f1df3dbc1796e11ce8f1201c02f6d1
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SSDEEP
49152:7Xa6xzZWhrb/T4vO90dL3BmAFd4A64nsfJPJ6TdXnT9aqeJaz2xNkapDnYRQoj1L:b2ONLBzSxtST7ElHz
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Kaiji
Kaiji payload
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Kaiji family
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kaiji_chaosbot
Chaos-variant payload
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Renames multiple (1040) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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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Abuse Elevation Control Mechanism: Sudo and Sudo Caching
Abuse sudo or cached sudo credentials to execute code.
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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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MITRE ATT&CK Enterprise v15
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
Abuse Elevation Control Mechanism
1Sudo and Sudo Caching
1Boot 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