Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1532156
MD5: 820b17fe1fe742c2c771e5bff5599f49
SHA1: 7fb69b1711a641b68096a8e4850121ea97037fbb
SHA256: 2e62dfa29a48eed1a3838bd309f3890e1efb08e07ef1e484fa1aec0460c7fe90
Tags: elfuser-abuse_ch
Infos:

Detection

Mirai
Score: 64
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Detected TCP or UDP traffic on non-standard ports
Sample has stripped symbol table
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

Name Description Attribution Blogpost URLs Link
Mirai Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: na.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: na.elf Virustotal: Detection: 61% Perma Link
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.13:59576 -> 194.120.116.148:5555
Sample listens on a socket
Source: /tmp/na.elf (PID: 5460) Socket: 127.0.0.1:20905 Jump to behavior
Source: unknown TCP traffic detected without corresponding DNS query: 194.120.116.148
Source: unknown TCP traffic detected without corresponding DNS query: 194.120.116.148
Source: unknown TCP traffic detected without corresponding DNS query: 194.120.116.148
Source: unknown TCP traffic detected without corresponding DNS query: 194.120.116.148
Source: unknown TCP traffic detected without corresponding DNS query: 194.120.116.148
Source: unknown TCP traffic detected without corresponding DNS query: 194.120.116.148
Source: unknown TCP traffic detected without corresponding DNS query: 194.120.116.148
Source: unknown TCP traffic detected without corresponding DNS query: 194.120.116.148
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal64.troj.linELF@0/0@0/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 5460) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5460.1.00007ffe421f8000.00007ffe42219000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-mips/tmp/na.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/na.elf
Source: na.elf, 5460.1.00005557e1689000.00005557e1710000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 5460.1.00007ffe421f8000.00007ffe42219000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips
Source: na.elf, 5460.1.00005557e1689000.00005557e1710000.rw-.sdmp Binary or memory string: WU!/etc/qemu-binfmt/mips

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: na.elf, type: SAMPLE
Source: Yara match File source: 5460.1.00007fd9bc400000.00007fd9bc411000.r-x.sdmp, type: MEMORY

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: na.elf, type: SAMPLE
Source: Yara match File source: 5460.1.00007fd9bc400000.00007fd9bc411000.r-x.sdmp, type: MEMORY

No Screenshots

  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
194.120.116.148
 unknown unknown
207451 AGROSVITUA false