Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1530547
MD5: 0381e1bb451047fd5c7d60720f284532
SHA1: 9700458bc797c2f03c56c29d7d4d84488d3cffd6
SHA256: 890a0afc386808d8827ff440c09f4c73aeb3eb8275d03e6535a2bbaf7bc92640
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 52
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Connects to many ports of the same IP (likely port scanning)
Detected TCP or UDP traffic on non-standard ports
Found strings indicative of a multi-platform dropper
Sample has stripped symbol table
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: na.elf ReversingLabs: Detection: 28%
Source: na.elf Virustotal: Detection: 19% Perma Link
Found strings indicative of a multi-platform dropper
Source: na.elf String: ash|login|wget|curl|tftp|ntpdate
Source: na.elf String: /proc//exe|ash|login|wget|curl|tftp|ntpdate/fdsocket|proc/usr/bin/usr/sbin/system/mnt/mtd/app/org/z/zbin/home/app/dvr/bin/duksan/userfs/mnt/app/usr/etc/dvr/main/usr/local/var/bin/tmp/sqfs/z/bin/dvr/mnt/mtd/zconf/gm/bin/home/process/var/challenge/usr/lib/lib/systemd//usr/lib/systemd/system/system/bin//mnt//home/helper/home/davinci/usr/libexec//sbin//bin/

Networking
barindex
Connects to many ports of the same IP (likely port scanning)
Source: global traffic TCP traffic: 154.90.62.142 ports 1,2,5,6,7,27651
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.14:44250 -> 154.90.62.142:27651
Sample listens on a socket
Source: /tmp/na.elf (PID: 5483) Socket: 127.0.0.1:1234 Jump to behavior
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: kr2ddnsnet.dyn
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal52.troj.linELF@0/0@3/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 5483) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5483.1.00007ffda4511000.00007ffda4532000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-ppc/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, 5483.1.0000557be6e40000.0000557be6ef0000.rw-.sdmp Binary or memory string: !/etc/qemu-binfmt/ppc1
Source: na.elf, 5483.1.0000557be6e40000.0000557be6ef0000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/ppc
Source: na.elf, 5483.1.00007ffda4511000.00007ffda4532000.rw-.sdmp Binary or memory string: /usr/bin/qemu-ppc

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
154.90.62.142
 kr2ddnsnet.dyn Seychelles
40065 CNSERVERSUS true

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true
kr2ddnsnet.dyn 154.90.62.142 true