Linux Analysis Report
na.elf

ID:	1530550
Product:	CloudBasic
Start time:	09:53:20
Start date:	10.10.2024
Sample:	na.elf
Cookbook:	defaultlinuxfilecookbook.jbs
System description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Architecture:	LINUX
MD5:	5e8459f56f8783414e5aba35a7996167
SHA1:	9eabb69c9e5602293183e306c3883fa668a2561e
SHA256:	a29b383afd2236592bf221eb4ef4a5413e76f21a110a27cac3f0d2b20884dd07
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Name	Type	MD5	SHA1	SHA256

AV Detection

Source: na.elf

ReversingLabs: Detection: 31%

Spreading

Source: na.elf	String: ash|login|wget|curl|tftp|ntpdate
Source: na.elf	String: /proc//exe|ash|login|wget|curl|tftp|ntpdate/fdsocket|proc/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

Source: global traffic

TCP traffic: 154.205.144.234 ports 0,54123,1,2,4,6,42061,49376

Source: global traffic	DNS traffic detected: malformed DNS query: 75cents.libre. [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

TCP traffic: 192.168.2.23:43482 -> 154.205.144.234:42061

Source: /tmp/na.elf (PID: 6248)

Socket: 127.0.0.1:1234

Jump to behavior

Source: global traffic	TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic	TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic	TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80

Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown	TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown	TCP traffic detected without corresponding DNS query: 91.189.91.42
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: 54.36.111.116
Source: unknown	UDP traffic detected without corresponding DNS query: 185.84.81.194
Source: unknown	UDP traffic detected without corresponding DNS query: 161.97.219.84
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: 162.243.19.47
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: 161.97.219.84

Source: global traffic	DNS traffic detected: DNS query: 75cents.libre. [malformed]
Source: global traffic	DNS traffic detected: DNS query: 2joints.libre. [malformed]
Source: global traffic	DNS traffic detected: DNS query: kr2ddnsnet.dyn
Source: global traffic	DNS traffic detected: DNS query: r3racegame.indy
Source: global traffic	DNS traffic detected: DNS query: eighteen.pirate
Source: global traffic	DNS traffic detected: DNS query: imaverygoodbadboy.libre
Source: global traffic	DNS traffic detected: DNS query: nineteen.libre. [malformed]

Source: unknown	Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown	Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal56.troj.linELF@0/0@8/0

Persistence and Installation Behavior

Source: /usr/bin/dash (PID: 6236)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.QUdWjiudxk /tmp/tmp.EmgGv0ygrp /tmp/tmp.x3ubNkrtf2			Jump to behavior
Source: /usr/bin/dash (PID: 6237)	Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.QUdWjiudxk /tmp/tmp.EmgGv0ygrp /tmp/tmp.x3ubNkrtf2			Jump to behavior

Malware Analysis System Evasion

Source: /tmp/na.elf (PID: 6248)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 6248.1.00007fffb8d6a000.00007fffb8d8b000.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, 6248.1.000056397079a000.00005639708e8000.rw-.sdmp	Binary or memory string: {p9V!/etc/qemu-binfmt/arm
Source: na.elf, 6248.1.000056397079a000.00005639708e8000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: na.elf, 6248.1.00007fffb8d6a000.00007fffb8d8b000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm