Linux Analysis Report
na.elf

ID:	1530541
Product:	CloudBasic
Start time:	09:43:22
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:	d155adcf6e6e692f242351fb6b71e7fb
SHA1:	f0b5333c7c76d2837c5389e9854c3432f11ae589
SHA256:	d4a6b428adbbee7ef528dd595fe44bd448e07c67bf201aaa771f5343104c3621
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Name	Type	MD5	SHA1	SHA256

AV Detection

Source: na.elf	ReversingLabs: Detection: 23%
Source: na.elf	Virustotal: Detection: 20%			Perma Link

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: 154.90.62.142 ports 1,2,5,6,7,27651

Source: global traffic

TCP traffic: 192.168.2.13:35380 -> 154.90.62.142:27651

Source: /tmp/na.elf (PID: 5425)

Socket: 127.0.0.1:1234

Jump to behavior

Source: unknown	UDP traffic detected without corresponding DNS query: 162.243.19.47
Source: unknown	UDP traffic detected without corresponding DNS query: 130.61.69.123
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: krddnsnet.dyn
Source: global traffic	DNS traffic detected: DNS query: daisy.ubuntu.com

System Summary

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal52.troj.linELF@0/0@3/0

Persistence and Installation Behavior

Source: /tmp/na.elf (PID: 5425)	File opened: /proc/11/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/22/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/55/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/66/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/88/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/99/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/111/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/222/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/333/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/777/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/888/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/11111/maps			Jump to behavior
Source: /tmp/na.elf (PID: 5425)	File opened: /proc/999/maps			Jump to behavior

Malware Analysis System Evasion

Source: /tmp/na.elf (PID: 5425)

Queries kernel information via 'uname':

Jump to behavior

Source: na.elf, 5425.1.00007ffe211c4000.00007ffe211e5000.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, 5425.1.000055a0f2510000.000055a0f265f000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: na.elf, 5425.1.000055a0f2510000.000055a0f265f000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: na.elf, 5425.1.00007ffe211c4000.00007ffe211e5000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm