Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1528776
MD5: 615fbcadc5b465ae186b6518b69935a4
SHA1: bb6e32402317621b5b97c733809e8bb0ca0aee67
SHA256: 1f6e95fad67e14cc81fb603ddfbfaa8beca8b0830648d909ce5161fb71461144
Tags: elfMiraiuser-abuse_ch
Infos:

Detection

Score: 64
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Connects to many ports of the same IP (likely port scanning)
Sends malformed DNS queries
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
Antivirus / Scanner detection for submitted sample
Source: na.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: na.elf ReversingLabs: Detection: 26%
Found strings indicative of a multi-platform dropper
Source: na.elf String: /proc//exewgetashinitcurltftp/fdsocketproc/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: 38.54.57.248 ports 2,3,6,7,8,32876
Source: global traffic TCP traffic: 156.244.7.75 ports 23789,2,3,7,27651,8,9
Source: global traffic TCP traffic: 154.223.21.228 ports 61543,7193,2,3,4,8,9,38429
Source: global traffic TCP traffic: 38.60.198.180 ports 54123,1,2,3,4,5
Sends malformed DNS queries
Source: global traffic DNS traffic detected: malformed DNS query: r3racegame.indy. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: 21savage.dyn. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: eighteen.pirate. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: fortyfivehundred.dyn. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: imaverygoodbadboy.libre. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: ru.coziest.lol. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: krddnsnet.dyn. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: 2joints.libre. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: nineteen.libre. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: kr2ddnsnet.dyn. [malformed]
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.14:41352 -> 156.244.7.75:23789
Source: global traffic TCP traffic: 192.168.2.14:44540 -> 38.54.57.248:32876
Source: global traffic TCP traffic: 192.168.2.14:54046 -> 154.223.21.228:38429
Source: global traffic TCP traffic: 192.168.2.14:57444 -> 38.60.198.180:54123
Source: global traffic TCP traffic: 192.168.2.14:47872 -> 154.90.62.142:7193
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: 130.61.69.123
Source: unknown UDP traffic detected without corresponding DNS query: 162.243.19.47
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.64.122
Source: unknown UDP traffic detected without corresponding DNS query: 54.36.111.116
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown UDP traffic detected without corresponding DNS query: 162.243.19.47
Source: unknown UDP traffic detected without corresponding DNS query: 161.97.219.84
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.69.123
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.64.122
Source: unknown UDP traffic detected without corresponding DNS query: 162.243.19.47
Source: unknown UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.69.123
Source: unknown UDP traffic detected without corresponding DNS query: 161.97.219.84
Source: unknown UDP traffic detected without corresponding DNS query: 63.231.92.27
Source: unknown UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 54.36.111.116
Source: unknown UDP traffic detected without corresponding DNS query: 161.97.219.84
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown UDP traffic detected without corresponding DNS query: 54.36.111.116
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 63.231.92.27
Source: unknown UDP traffic detected without corresponding DNS query: 63.231.92.27
Source: unknown UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown UDP traffic detected without corresponding DNS query: 162.243.19.47
Source: unknown UDP traffic detected without corresponding DNS query: 161.97.219.84
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown UDP traffic detected without corresponding DNS query: 63.231.92.27
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.64.122
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.64.122
Source: unknown UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown UDP traffic detected without corresponding DNS query: 54.36.111.116
Source: unknown UDP traffic detected without corresponding DNS query: 192.3.165.37
Source: unknown UDP traffic detected without corresponding DNS query: 162.243.19.47
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.64.122
Source: unknown UDP traffic detected without corresponding DNS query: 192.3.165.37
Source: unknown UDP traffic detected without corresponding DNS query: 116.203.104.203
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.69.123
Source: unknown UDP traffic detected without corresponding DNS query: 54.36.111.116
Source: unknown UDP traffic detected without corresponding DNS query: 130.61.69.123
Source: global traffic DNS traffic detected: DNS query: 2joints.libre
Source: global traffic DNS traffic detected: DNS query: r3racegame.indy. [malformed]
Source: global traffic DNS traffic detected: DNS query: 21savage.dyn. [malformed]
Source: global traffic DNS traffic detected: DNS query: kr2ddnsnet.dyn
Source: global traffic DNS traffic detected: DNS query: eighteen.pirate. [malformed]
Source: global traffic DNS traffic detected: DNS query: fortyfivehundred.dyn. [malformed]
Source: global traffic DNS traffic detected: DNS query: imaverygoodbadboy.libre. [malformed]
Source: global traffic DNS traffic detected: DNS query: ru.coziest.lol. [malformed]
Source: global traffic DNS traffic detected: DNS query: f.codingdrunk.cc
Source: global traffic DNS traffic detected: DNS query: kr3ddnsnet1.indy
Source: global traffic DNS traffic detected: DNS query: krddnsnet.dyn. [malformed]
Source: global traffic DNS traffic detected: DNS query: 2joints.libre. [malformed]
Source: global traffic DNS traffic detected: DNS query: eighteen.pirate
Source: global traffic DNS traffic detected: DNS query: ru.coziest.lol
Source: global traffic DNS traffic detected: DNS query: subcarrace.indy
Source: global traffic DNS traffic detected: DNS query: nineteen.libre. [malformed]
Source: global traffic DNS traffic detected: DNS query: kr2ddnsnet.dyn. [malformed]
Source: global traffic DNS traffic detected: DNS query: r3racegame.indy
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: mal64.troj.linELF@0/0@39/0
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, 5483.1.0000559cb2696000.0000559cb273e000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mips
Source: na.elf, 5483.1.0000559cb2696000.0000559cb273e000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 5483.1.00007ffcb15d8000.00007ffcb15f9000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips
Source: na.elf, 5483.1.00007ffcb15d8000.00007ffcb15f9000.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

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
38.54.57.248
 f.codingdrunk.cc United States
174 COGENT-174US true
154.90.62.142
 kr2ddnsnet.dyn Seychelles
40065 CNSERVERSUS true
156.244.7.75
 2joints.libre Seychelles
132839 POWERLINE-AS-APPOWERLINEDATACENTERHK true
154.223.21.228
 r3racegame.indy Seychelles
134705 ITACE-AS-APItaceInternationalLimitedHK true
38.60.198.180
 ru.coziest.lol United States
174 COGENT-174US true

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.25 true
ru.coziest.lol 38.60.198.180 true
f.codingdrunk.cc 38.54.57.248 true
2joints.libre 156.244.7.75 true
r3racegame.indy 154.223.21.228 true
kr3ddnsnet1.indy 154.223.21.228 true
kr2ddnsnet.dyn 154.90.62.142 true
subcarrace.indy 154.223.21.228 true
nineteen.libre. [malformed] unknown unknown
imaverygoodbadboy.libre. [malformed] unknown unknown
fortyfivehundred.dyn. [malformed] unknown unknown
2joints.libre. [malformed] unknown unknown
eighteen.pirate unknown unknown
kr2ddnsnet.dyn. [malformed] unknown unknown
eighteen.pirate. [malformed] unknown unknown
r3racegame.indy. [malformed] unknown unknown
krddnsnet.dyn. [malformed] unknown unknown
21savage.dyn. [malformed] unknown unknown
ru.coziest.lol. [malformed] unknown unknown