Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1532428
MD5: 279c1addab1dfaf8a1d7dc9fe3875b81
SHA1: b947009a5fcc6a1c37a5750114d6af91a4448e8b
SHA256: 3fe583fb7fa6646b25765553eb9495275daa2a17bf393e816dd33009e366f48a
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 52
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Contains symbols with names commonly found in malware
Detected TCP or UDP traffic on non-standard ports
Found strings indicative of a multi-platform dropper
Sample and/or dropped files contains symbols with suspicious names
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: 13%
Source: na.elf Virustotal: Detection: 7% Perma Link
Found strings indicative of a multi-platform dropper
Source: na.elf String: /lib//sbin//usr//proc//exeself/fd/fd/socket:/proc/proc//exewgetcurlftpmountabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789/proc/net/tcp/proc//exe/fd//proc//maps/lib/usr/lib
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.14:58950 -> 92.38.185.13:9583
Sample listens on a socket
Source: /tmp/na.elf (PID: 5575) Socket: 127.0.0.1:45295 Jump to behavior
Source: unknown TCP traffic detected without corresponding DNS query: 92.38.185.13
Source: unknown TCP traffic detected without corresponding DNS query: 92.38.185.13
Source: unknown TCP traffic detected without corresponding DNS query: 92.38.185.13
Source: unknown TCP traffic detected without corresponding DNS query: 92.38.185.13
Source: unknown TCP traffic detected without corresponding DNS query: 92.38.185.13
Source: unknown TCP traffic detected without corresponding DNS query: 92.38.185.13
Source: global traffic DNS traffic detected: DNS query: dvrhelpers.su
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com

System Summary
barindex
Contains symbols with names commonly found in malware
Source: ELF static info symbol of initial sample Name: add_attack
Source: ELF static info symbol of initial sample Name: attack_add_pid
Source: ELF static info symbol of initial sample Name: attack_init
Source: ELF static info symbol of initial sample Name: attack_ongoing
Source: ELF static info symbol of initial sample Name: attack_parse
Source: ELF static info symbol of initial sample Name: attack_remove_id
Source: ELF static info symbol of initial sample Name: attack_start
Source: ELF static info symbol of initial sample Name: attack_stop
Source: ELF static info symbol of initial sample Name: attacks_ack
Source: ELF static info symbol of initial sample Name: attacks_gre
Sample and/or dropped files contains symbols with suspicious names
Source: na.elf ELF static info symbol of initial sample: __gnu_unwind_execute
Source: classification engine Classification label: mal52.linELF@0/479@3/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 5575) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5575.1.00007ffe9f644000.00007ffe9f665000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/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, 5575.1.000055f8c7a75000.000055f8c7be3000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: na.elf, 5575.1.00007ffe9f644000.00007ffe9f665000.rw-.sdmp Binary or memory string: /tmp/qemu-open.uPiVyJ
Source: na.elf, 5575.1.000055f8c7a75000.000055f8c7be3000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: na.elf, 5575.1.00007ffe9f644000.00007ffe9f665000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: na.elf, 5575.1.00007ffe9f644000.00007ffe9f665000.rw-.sdmp Binary or memory string: U/tmp/qemu-open.uPiVyJ:
windows-stand
  • 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
92.38.185.13
 unknown Austria
199524 GCOREAT false

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true
dvrhelpers.su unknown unknown