Linux Analysis Report
nshkmips.elf

Overview

General Information

Sample name: nshkmips.elf
Analysis ID: 1579326
MD5: 3e28033a1dd0ba3934530dd900d53456
SHA1: ef4666b2655feade63925a546f2fc9e2a86269d7
SHA256: 4293af8935a04810c1a0edf22120d6780b8fc31cb9ed0e1ba6306fdff15e03c9
Tags: elfuser-abuse_ch
Infos:

Detection

Mirai
Score: 68
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Sends malformed DNS queries
Detected TCP or UDP traffic on non-standard ports
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

Name Description Attribution Blogpost URLs Link
Mirai Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

AV Detection

barindex
Source: nshkmips.elf Avira: detected
Source: nshkmips.elf ReversingLabs: Detection: 28%

Networking

barindex
Source: global traffic DNS traffic detected: malformed DNS query: catvision.dyn. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: hikvision.geek. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: shitrocket.dyn. [malformed]
Source: global traffic DNS traffic detected: malformed DNS query: catlovingfools.geek. [malformed]
Source: global traffic TCP traffic: 192.168.2.23:50198 -> 185.72.8.231:22580
Source: global traffic TCP traffic: 192.168.2.23:60036 -> 37.49.226.109:22580
Source: global traffic TCP traffic: 192.168.2.23:42762 -> 212.192.13.95:14150
Source: global traffic TCP traffic: 192.168.2.23:52828 -> 37.49.226.105:9370
Source: global traffic TCP traffic: 192.168.2.23:45836 -> 212.60.5.153:25142
Source: global traffic TCP traffic: 192.168.2.23:34050 -> 86.107.100.19:23660
Source: /tmp/nshkmips.elf (PID: 6259) Socket: 127.0.0.1:1172 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: 104.25.171.131
Source: unknown TCP traffic detected without corresponding DNS query: 104.17.4.135
Source: unknown TCP traffic detected without corresponding DNS query: 186.215.114.193
Source: unknown TCP traffic detected without corresponding DNS query: 16.73.170.216
Source: unknown TCP traffic detected without corresponding DNS query: 120.95.114.196
Source: unknown TCP traffic detected without corresponding DNS query: 206.28.218.80
Source: unknown TCP traffic detected without corresponding DNS query: 130.54.202.32
Source: unknown TCP traffic detected without corresponding DNS query: 168.22.101.178
Source: unknown TCP traffic detected without corresponding DNS query: 46.5.99.231
Source: unknown TCP traffic detected without corresponding DNS query: 186.81.253.10
Source: unknown TCP traffic detected without corresponding DNS query: 159.140.96.55
Source: unknown TCP traffic detected without corresponding DNS query: 169.68.155.92
Source: unknown TCP traffic detected without corresponding DNS query: 23.82.42.148
Source: unknown TCP traffic detected without corresponding DNS query: 188.167.198.179
Source: unknown TCP traffic detected without corresponding DNS query: 146.247.58.7
Source: unknown TCP traffic detected without corresponding DNS query: 27.114.233.30
Source: unknown TCP traffic detected without corresponding DNS query: 196.8.137.154
Source: unknown TCP traffic detected without corresponding DNS query: 59.139.161.20
Source: unknown TCP traffic detected without corresponding DNS query: 37.150.51.168
Source: unknown TCP traffic detected without corresponding DNS query: 33.199.106.51
Source: unknown TCP traffic detected without corresponding DNS query: 139.81.50.188
Source: unknown TCP traffic detected without corresponding DNS query: 216.87.126.78
Source: unknown TCP traffic detected without corresponding DNS query: 165.235.34.112
Source: unknown TCP traffic detected without corresponding DNS query: 206.83.173.80
Source: unknown TCP traffic detected without corresponding DNS query: 137.173.27.178
Source: unknown TCP traffic detected without corresponding DNS query: 150.204.182.146
Source: unknown TCP traffic detected without corresponding DNS query: 134.232.191.45
Source: unknown TCP traffic detected without corresponding DNS query: 98.113.36.158
Source: unknown TCP traffic detected without corresponding DNS query: 198.203.44.219
Source: unknown TCP traffic detected without corresponding DNS query: 75.175.197.209
Source: unknown TCP traffic detected without corresponding DNS query: 29.232.107.63
Source: unknown TCP traffic detected without corresponding DNS query: 198.107.125.38
Source: unknown TCP traffic detected without corresponding DNS query: 214.94.83.25
Source: unknown TCP traffic detected without corresponding DNS query: 207.52.18.214
Source: unknown TCP traffic detected without corresponding DNS query: 204.238.232.4
Source: unknown TCP traffic detected without corresponding DNS query: 29.63.139.42
Source: unknown TCP traffic detected without corresponding DNS query: 141.99.59.119
Source: unknown TCP traffic detected without corresponding DNS query: 183.252.230.146
Source: unknown TCP traffic detected without corresponding DNS query: 43.119.233.181
Source: unknown TCP traffic detected without corresponding DNS query: 134.142.20.227
Source: unknown TCP traffic detected without corresponding DNS query: 7.237.31.12
Source: unknown TCP traffic detected without corresponding DNS query: 188.195.177.45
Source: unknown TCP traffic detected without corresponding DNS query: 34.176.139.214
Source: unknown TCP traffic detected without corresponding DNS query: 24.50.66.24
Source: unknown TCP traffic detected without corresponding DNS query: 118.64.83.218
Source: unknown TCP traffic detected without corresponding DNS query: 181.255.51.62
Source: unknown TCP traffic detected without corresponding DNS query: 215.121.91.12
Source: unknown TCP traffic detected without corresponding DNS query: 75.65.174.206
Source: unknown TCP traffic detected without corresponding DNS query: 114.108.235.49
Source: unknown TCP traffic detected without corresponding DNS query: 166.20.152.111
Source: global traffic DNS traffic detected: DNS query: catlovingfools.geek
Source: global traffic DNS traffic detected: DNS query: catvision.dyn. [malformed]
Source: global traffic DNS traffic detected: DNS query: hikvision.geek
Source: global traffic DNS traffic detected: DNS query: shitrocket.dyn
Source: global traffic DNS traffic detected: DNS query: hikvision.geek. [malformed]
Source: global traffic DNS traffic detected: DNS query: shitrocket.dyn. [malformed]
Source: global traffic DNS traffic detected: DNS query: catlovingfools.geek. [malformed]
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal68.troj.linELF@0/0@19/0
Source: /tmp/nshkmips.elf (PID: 6259) Queries kernel information via 'uname': Jump to behavior
Source: nshkmips.elf, 6259.1.000055d65cf20000.000055d65cfc9000.rw-.sdmp, nshkmips.elf, 6261.1.000055d65cf20000.000055d65cfc9000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mips
Source: nshkmips.elf, 6259.1.000055d65cf20000.000055d65cfc9000.rw-.sdmp, nshkmips.elf, 6261.1.000055d65cf20000.000055d65cfc9000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: nshkmips.elf, 6259.1.00007ffe96842000.00007ffe96863000.rw-.sdmp, nshkmips.elf, 6261.1.00007ffe96842000.00007ffe96863000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-mips/tmp/nshkmips.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/nshkmips.elf
Source: nshkmips.elf, 6259.1.00007ffe96842000.00007ffe96863000.rw-.sdmp, nshkmips.elf, 6261.1.00007ffe96842000.00007ffe96863000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips

Stealing of Sensitive Information

barindex
Source: Yara match File source: nshkmips.elf, type: SAMPLE
Source: Yara match File source: 6259.1.00007fac30400000.00007fac30417000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 6261.1.00007fac30400000.00007fac30417000.r-x.sdmp, type: MEMORY

Remote Access Functionality

barindex
Source: Yara match File source: nshkmips.elf, type: SAMPLE
Source: Yara match File source: 6259.1.00007fac30400000.00007fac30417000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 6261.1.00007fac30400000.00007fac30417000.r-x.sdmp, type: MEMORY
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs