Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1527076
MD5: 052d1bf7b8ef1a73b58dcdfb03d84f8c
SHA1: c52c5df9751629287e08a86e00758524b2019ce7
SHA256: 10beaa2b231f08836935954b4397a03d895c7c239ba17fd9d119446027c113a6
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 48
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Sample has stripped symbol table
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
Multi AV Scanner detection for submitted file
Source: na.elf ReversingLabs: Detection: 50%
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.13:48202 -> 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 Network traffic detected: HTTP traffic on port 48202 -> 443
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal48.linELF@0/0@0/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 5457) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5457.1.00007ffea8825000.00007ffea8846000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-sh4/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, 5457.1.00007ffea8825000.00007ffea8846000.rw-.sdmp Binary or memory string: /usr/bin/qemu-sh4
Source: na.elf, 5457.1.000055c10c4ef000.000055c10c552000.rw-.sdmp Binary or memory string: U5!/etc/qemu-binfmt/sh4
Source: na.elf, 5457.1.000055c10c4ef000.000055c10c552000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/sh4

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
185.125.190.26
 unknown United Kingdom
41231 CANONICAL-ASGB false