Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1528788
MD5: e92707c5b799b98cd9e09166d58930f3
SHA1: bbd8ffef109cb8a1b800209825f4f2491347a507
SHA256: 355a6f5e6e0357f3a6440ca408bc9c67899753e1662c0dd92ae6b6de892391f5
Tags: elfMiraiuser-abuse_ch
Infos:

Detection

Score: 60
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)
Detected TCP or UDP traffic on non-standard ports
Sample has stripped symbol table
Sample listens on a socket
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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: 50%
Source: na.elf Virustotal: Detection: 58% Perma Link

Networking
barindex
Connects to many ports of the same IP (likely port scanning)
Source: global traffic TCP traffic: 93.123.39.105 ports 38241,1,2,3,4,8
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.14:34708 -> 93.123.39.105:38241
Sample listens on a socket
Source: /tmp/na.elf (PID: 5514) Socket: 127.0.0.1:2353 Jump to behavior
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.14:46540 -> 185.125.190.26:443
Source: unknown TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown UDP traffic detected without corresponding DNS query: 70.34.254.19
Source: unknown UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown UDP traffic detected without corresponding DNS query: 70.34.254.19
Source: unknown UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown UDP traffic detected without corresponding DNS query: 168.235.111.72
Source: unknown UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown UDP traffic detected without corresponding DNS query: 64.176.6.48
Source: unknown UDP traffic detected without corresponding DNS query: 80.152.203.134
Source: unknown UDP traffic detected without corresponding DNS query: 137.220.52.23
Source: unknown UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown UDP traffic detected without corresponding DNS query: 70.34.254.19
Source: unknown UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown UDP traffic detected without corresponding DNS query: 152.53.15.127
Source: unknown UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown UDP traffic detected without corresponding DNS query: 70.34.254.19
Source: unknown UDP traffic detected without corresponding DNS query: 64.176.6.48
Source: unknown UDP traffic detected without corresponding DNS query: 202.61.197.122
Source: unknown UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown UDP traffic detected without corresponding DNS query: 168.235.111.72
Source: unknown UDP traffic detected without corresponding DNS query: 168.235.111.72
Source: unknown UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown UDP traffic detected without corresponding DNS query: 64.176.6.48
Source: global traffic DNS traffic detected: DNS query: enemybotnet.com
Source: unknown Network traffic detected: HTTP traffic on port 46540 -> 443
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal60.troj.linELF@0/0@31/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 5514) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5514.1.00007ffeadf0e000.00007ffeadf2f000.rw-.sdmp, na.elf, 5522.1.00007ffeadf0e000.00007ffeadf2f000.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, 5514.1.000055dc4c34c000.000055dc4c3d3000.rw-.sdmp, na.elf, 5522.1.000055dc4c34c000.000055dc4c3d3000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mips
Source: na.elf, 5514.1.000055dc4c34c000.000055dc4c3d3000.rw-.sdmp, na.elf, 5522.1.000055dc4c34c000.000055dc4c3d3000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 5514.1.00007ffeadf0e000.00007ffeadf2f000.rw-.sdmp, na.elf, 5522.1.00007ffeadf0e000.00007ffeadf2f000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips

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
93.123.39.105
 enemybotnet.com Bulgaria
43561 NET1-ASBG true
185.125.190.26
 unknown United Kingdom
41231 CANONICAL-ASGB false

Contacted Domains

Name IP Active
enemybotnet.com 93.123.39.105 true