Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1532160
MD5: d3ebd3a4b9d1803e494f0d7e576ff207
SHA1: 1ba01389e04aaf29e6bf73875d1c9da1333d95ce
SHA256: 98d3722663774bec8747dec574c571a769d77a97080386d32c0cd32f4588987a
Tags: elfuser-abuse_ch
Infos:

Detection

Mirai
Score: 64
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
Sample has stripped symbol table
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
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Antivirus / Scanner detection for submitted sample
Source: na.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: na.elf ReversingLabs: Detection: 65%
Source: na.elf Virustotal: Detection: 61% Perma Link
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal64.troj.linELF@0/0@2/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 5477) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 5477.1.000055efd8fc0000.000055efd90ee000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: na.elf, 5477.1.000055efd8fc0000.000055efd90ee000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: na.elf, 5477.1.00007fff605b8000.00007fff605d9000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: na.elf, 5477.1.00007fff605b8000.00007fff605d9000.rw-.sdmp Binary or memory string: lex86_64/usr/bin/qemu-arm/tmp/na.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/na.elf
Source: na.elf, 5477.1.00007fff605b8000.00007fff605d9000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information
barindex
Yara detected Mirai
Source: Yara match File source: na.elf, type: SAMPLE
Source: Yara match File source: 5477.1.00007febe8017000.00007febe802b000.r-x.sdmp, type: MEMORY

Remote Access Functionality
barindex
Yara detected Mirai
Source: Yara match File source: na.elf, type: SAMPLE
Source: Yara match File source: 5477.1.00007febe8017000.00007febe802b000.r-x.sdmp, type: MEMORY

No Screenshots

⊘No contacted IP infos

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true