Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1532150
MD5: 70e3f6b8302027cfd1a757e02252400a
SHA1: 84d3ab869c89b305b093ed890731c0bd50e552a5
SHA256: edd1e9268ff4961c7d0d2364d7215925d38852fa8646636d8edb3e97900e53ac
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 56
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
ELF contains segments with high entropy indicating compressed/encrypted content
Sample contains only a LOAD segment without any section mappings
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: 60%
Source: na.elf Virustotal: Detection: 64% Perma Link
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 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: daisy.ubuntu.com
Source: unknown Network traffic detected: HTTP traffic on port 48202 -> 443
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0x100000
Source: classification engine Classification label: mal56.linELF@0/0@2/0
ELF contains segments with high entropy indicating compressed/encrypted content
Source: na.elf Submission file: segment LOAD with 7.9885 entropy (max. 8.0)
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 5435) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5435.1.00007ffe0784d000.00007ffe0786e000.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, 5435.1.00005622c3e2a000.00005622c3eb1000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: na.elf, 5435.1.00005622c3e2a000.00005622c3eb1000.rw-.sdmp Binary or memory string: "V!/etc/qemu-binfmt/mips
Source: na.elf, 5435.1.00007ffe0784d000.00007ffe0786e000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips
Source: na.elf, 5435.1.00007ffe0784d000.00007ffe0786e000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

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

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true