Linux Analysis Report
e1x.arm.elf

Overview

General Information

Sample name: e1x.arm.elf
Analysis ID: 1544690
MD5: 1ac3922918ae97b73e74f527dec3a3a8
SHA1: e7f469c2f60cdef5a496fccde3b3a82a148c5c9f
SHA256: a16770e486dedece7dd910974b3cf62a81c065abe1a6d61cd1e6b69df44e0b8c
Tags: elfuser-abuse_ch
Infos:

Detection

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

Signatures

Multi AV Scanner detection for submitted file
Yara detected Mirai
Yara detected Moobot
Sample deletes itself
Creates hidden files and/or directories
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
Sample has stripped symbol table
Sleeps for long times indicative of sandbox evasion
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
Name Description Attribution Blogpost URLs Link
MooBot No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.moobot

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: e1x.arm.elf ReversingLabs: Detection: 23%
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.13:52632 -> 194.87.35.204:14880
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Source: unknown TCP traffic detected without corresponding DNS query: 194.87.35.204
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal68.troj.evad.linELF@0/1@0/0
Creates hidden files and/or directories
Source: /tmp/e1x.arm.elf (PID: 5450) File: /tmp/.system_idle Jump to behavior
Enumerates processes within the "proc" file system
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3122/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3117/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3114/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3633/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/914/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/917/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/5396/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3134/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3375/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3132/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3095/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1745/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1866/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1588/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/884/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1982/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/765/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3246/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/767/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/800/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1906/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/802/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/803/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1748/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/5289/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3420/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1482/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1480/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1755/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1238/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1875/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/2964/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3413/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1751/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1872/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/2961/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1475/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/656/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/657/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/778/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/5434/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/658/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/5435/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/659/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/936/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/816/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1879/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1891/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3310/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3153/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/780/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/660/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1921/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/783/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1765/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3706/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/2974/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3707/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1400/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1884/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3424/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3708/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/2972/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3709/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3147/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/2970/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1881/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3146/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3300/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1805/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1925/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1804/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1648/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1922/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3429/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3442/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3165/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3164/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3163/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3162/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/790/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3161/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/792/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/793/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/672/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1930/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/795/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/674/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3315/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1411/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/2984/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1410/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/797/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/676/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3434/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3158/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/678/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/679/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3170/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/680/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3208/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3327/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3448/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/1940/exe Jump to behavior
Source: /tmp/e1x.arm.elf (PID: 5454) File opened: /proc/3203/exe Jump to behavior

Hooking and other Techniques for Hiding and Protection
barindex
Sample deletes itself
Source: /tmp/e1x.arm.elf (PID: 5450) File: /tmp/e1x.arm.elf Jump to behavior
Sleeps for long times indicative of sandbox evasion
Source: /tmp/e1x.arm.elf (PID: 5454) Sleeps longer then 60s: 60.0s Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/e1x.arm.elf (PID: 5450) Queries kernel information via 'uname': Jump to behavior
Source: e1x.arm.elf, 5450.1.00007fff2d1d2000.00007fff2d1f3000.rw-.sdmp Binary or memory string: 5.x86_64/usr/bin/qemu-arm/tmp/e1x.arm.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/e1x.arm.elf
Source: e1x.arm.elf, 5450.1.0000556d4128d000.0000556d413bb000.rw-.sdmp Binary or memory string: C*AmUPE*AmUPB*AmU!/etc/qemu-binfmt/arm
Source: e1x.arm.elf, 5450.1.0000556d4128d000.0000556d413bb000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: e1x.arm.elf, 5450.1.00007fff2d1d2000.00007fff2d1f3000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: e1x.arm.elf, type: SAMPLE
Source: Yara match File source: 5450.1.00007f7eec017000.00007f7eec026000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: e1x.arm.elf PID: 5450, type: MEMORYSTR
Yara detected Moobot
Source: Yara match File source: e1x.arm.elf, type: SAMPLE
Source: Yara match File source: 5450.1.00007f7eec017000.00007f7eec026000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: e1x.arm.elf PID: 5450, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: e1x.arm.elf, type: SAMPLE
Source: Yara match File source: 5450.1.00007f7eec017000.00007f7eec026000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: e1x.arm.elf PID: 5450, type: MEMORYSTR
Yara detected Moobot
Source: Yara match File source: e1x.arm.elf, type: SAMPLE
Source: Yara match File source: 5450.1.00007f7eec017000.00007f7eec026000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: e1x.arm.elf PID: 5450, type: MEMORYSTR

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
194.87.35.204
 unknown Russian Federation
25369 BANDWIDTH-ASGB false