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Linux Analysis Report
boatnet.arm6.elf

Overview

General Information

Sample name:boatnet.arm6.elf
Analysis ID:1648744
MD5:f2a5aa983c79a867faa03c23cb48e177
SHA1:13cb5304ac7bc24b2080b35f513ce133dfc54a80
SHA256:1e04016c82721f576b3d92f2d03ce2e3d9a51eaf70807d7ebc10b45830ddf6b5
Tags:elfuser-abuse_ch
Infos:

Detection

Mirai
Score:68
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
Yara detected Mirai
Sample is packed with UPX
ELF contains segments with high entropy indicating compressed/encrypted content
Executes the "rm" command used to delete files or directories
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1648744
Start date and time:2025-03-26 07:03:18 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 30s
Hypervisor based Inspection enabled:false
Report type:full
Cookbook file name:defaultlinuxfilecookbook.jbs
Analysis system description:Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Analysis Mode:default
Sample name:boatnet.arm6.elf
Detection:MAL
Classification:mal68.troj.evad.linELF@0/0@2/0
Command:/tmp/boatnet.arm6.elf
PID:5433
Exit Code:139
Exit Code Info:SIGSEGV (11) Segmentation fault invalid memory reference
Killed:False
Standard Output:

Standard Error:qemu: uncaught target signal 11 (Segmentation fault) - core dumped
  • system is lnxubuntu20
  • boatnet.arm6.elf (PID: 5433, Parent: 5355, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/boatnet.arm6.elf
  • dash New Fork (PID: 5524, Parent: 3578)
  • rm (PID: 5524, Parent: 3578, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.mRjUtnCKxx /tmp/tmp.AnFyovL7PA /tmp/tmp.dU8FIZNz3Q
  • dash New Fork (PID: 5525, Parent: 3578)
  • rm (PID: 5525, Parent: 3578, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.mRjUtnCKxx /tmp/tmp.AnFyovL7PA /tmp/tmp.dU8FIZNz3Q
  • cleanup
NameDescriptionAttributionBlogpost URLsLink
MiraiMirai 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 Attributionhttps://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai
SourceRuleDescriptionAuthorStrings
5433.1.00007f676c017000.00007f676c028000.r-x.sdmpJoeSecurity_Mirai_6Yara detected MiraiJoe Security
    5433.1.00007f676c017000.00007f676c028000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security
      Process Memory Space: boatnet.arm6.elf PID: 5433JoeSecurity_Mirai_6Yara detected MiraiJoe Security
        No Suricata rule has matched

        Click to jump to signature section

        Show All Signature Results

        AV Detection

        barindex
        Source: boatnet.arm6.elfReversingLabs: Detection: 38%
        Source: unknownTCP traffic detected without corresponding DNS query: 54.171.230.55
        Source: unknownTCP traffic detected without corresponding DNS query: 34.243.160.129
        Source: unknownTCP traffic detected without corresponding DNS query: 34.243.160.129
        Source: unknownTCP traffic detected without corresponding DNS query: 34.243.160.129
        Source: unknownTCP traffic detected without corresponding DNS query: 34.243.160.129
        Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
        Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
        Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com
        Source: boatnet.arm6.elf, 5433.1.00007f676c017000.00007f676c028000.r-x.sdmpString found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
        Source: boatnet.arm6.elf, 5433.1.00007f676c017000.00007f676c028000.r-x.sdmpString found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
        Source: boatnet.arm6.elfString found in binary or memory: http://upx.sf.net
        Source: unknownNetwork traffic detected: HTTP traffic on port 58866 -> 443
        Source: unknownNetwork traffic detected: HTTP traffic on port 443 -> 50538
        Source: unknownNetwork traffic detected: HTTP traffic on port 50538 -> 443
        Source: LOAD without section mappingsProgram segment: 0x8000
        Source: classification engineClassification label: mal68.troj.evad.linELF@0/0@2/0

        Data Obfuscation

        barindex
        Source: initial sampleString containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
        Source: initial sampleString containing UPX found: $Info: This file is packed with the UPX executable packer http://upx.sf.net $
        Source: initial sampleString containing UPX found: $Id: UPX 3.94 Copyright (C) 1996-2017 the UPX Team. All Rights Reserved. $
        Source: /usr/bin/dash (PID: 5524)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.mRjUtnCKxx /tmp/tmp.AnFyovL7PA /tmp/tmp.dU8FIZNz3QJump to behavior
        Source: /usr/bin/dash (PID: 5525)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.mRjUtnCKxx /tmp/tmp.AnFyovL7PA /tmp/tmp.dU8FIZNz3QJump to behavior
        Source: boatnet.arm6.elfSubmission file: segment LOAD with 7.9612 entropy (max. 8.0)
        Source: /tmp/boatnet.arm6.elf (PID: 5433)Queries kernel information via 'uname': Jump to behavior
        Source: boatnet.arm6.elf, 5433.1.00007ffc23d04000.00007ffc23d25000.rw-.sdmpBinary or memory string: 3x86_64/usr/bin/qemu-arm/tmp/boatnet.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/boatnet.arm6.elf
        Source: boatnet.arm6.elf, 5433.1.00005574cdaca000.00005574cdc98000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
        Source: boatnet.arm6.elf, 5433.1.00007ffc23d04000.00007ffc23d25000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
        Source: boatnet.arm6.elf, 5433.1.00005574cdaca000.00005574cdc98000.rw-.sdmpBinary or memory string: tU!/etc/qemu-binfmt/arm
        Source: boatnet.arm6.elf, 5433.1.00007ffc23d04000.00007ffc23d25000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

        Stealing of Sensitive Information

        barindex
        Source: Yara matchFile source: 5433.1.00007f676c017000.00007f676c028000.r-x.sdmp, type: MEMORY
        Source: Yara matchFile source: Process Memory Space: boatnet.arm6.elf PID: 5433, type: MEMORYSTR

        Remote Access Functionality

        barindex
        Source: Yara matchFile source: 5433.1.00007f676c017000.00007f676c028000.r-x.sdmp, type: MEMORY
        Source: Yara matchFile source: Process Memory Space: boatnet.arm6.elf PID: 5433, type: MEMORYSTR
        ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
        Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath Interception11
        Obfuscated Files or Information
        OS Credential Dumping11
        Security Software Discovery
        Remote ServicesData from Local System1
        Encrypted Channel
        Exfiltration Over Other Network MediumAbuse Accessibility Features
        CredentialsDomainsDefault AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization Scripts1
        File Deletion
        LSASS MemoryApplication Window DiscoveryRemote Desktop ProtocolData from Removable Media1
        Non-Application Layer Protocol
        Exfiltration Over BluetoothNetwork Denial of Service
        Email AddressesDNS ServerDomain AccountsAtLogon Script (Windows)Logon Script (Windows)Obfuscated Files or InformationSecurity Account ManagerQuery RegistrySMB/Windows Admin SharesData from Network Shared Drive2
        Application Layer Protocol
        Automated ExfiltrationData Encrypted for Impact
        No configs have been found
        Hide Legend

        Legend:

        • Process
        • Signature
        • Created File
        • DNS/IP Info
        • Is Dropped
        • Number of created Files
        • Is malicious
        • Internet
        behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1648744 Sample: boatnet.arm6.elf Startdate: 26/03/2025 Architecture: LINUX Score: 68 12 34.243.160.129, 443, 50538 AMAZON-02US United States 2->12 14 54.171.230.55, 443 AMAZON-02US United States 2->14 16 daisy.ubuntu.com 2->16 18 Multi AV Scanner detection for submitted file 2->18 20 Yara detected Mirai 2->20 22 Sample is packed with UPX 2->22 6 dash rm 2->6         started        8 dash rm 2->8         started        10 boatnet.arm6.elf 2->10         started        signatures3 process4
        SourceDetectionScannerLabelLink
        boatnet.arm6.elf39%ReversingLabsLinux.Backdoor.Gafgyt
        No Antivirus matches
        No Antivirus matches
        No Antivirus matches

        Download Network PCAP: filteredfull

        NameIPActiveMaliciousAntivirus DetectionReputation
        daisy.ubuntu.com
        162.213.35.24
        truefalse
          high
          NameSourceMaliciousAntivirus DetectionReputation
          http://upx.sf.netboatnet.arm6.elffalse
            high
            http://schemas.xmlsoap.org/soap/encoding/boatnet.arm6.elf, 5433.1.00007f676c017000.00007f676c028000.r-x.sdmpfalse
              high
              http://schemas.xmlsoap.org/soap/envelope/boatnet.arm6.elf, 5433.1.00007f676c017000.00007f676c028000.r-x.sdmpfalse
                high
                • No. of IPs < 25%
                • 25% < No. of IPs < 50%
                • 50% < No. of IPs < 75%
                • 75% < No. of IPs
                IPDomainCountryFlagASNASN NameMalicious
                54.171.230.55
                unknownUnited States
                16509AMAZON-02USfalse
                34.243.160.129
                unknownUnited States
                16509AMAZON-02USfalse
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                                                        • 54.171.230.55
                                                        No context
                                                        No context
                                                        No created / dropped files found
                                                        File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (GNU/Linux), statically linked, no section header
                                                        Entropy (8bit):7.958838812548144
                                                        TrID:
                                                        • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                                        File name:boatnet.arm6.elf
                                                        File size:35'892 bytes
                                                        MD5:f2a5aa983c79a867faa03c23cb48e177
                                                        SHA1:13cb5304ac7bc24b2080b35f513ce133dfc54a80
                                                        SHA256:1e04016c82721f576b3d92f2d03ce2e3d9a51eaf70807d7ebc10b45830ddf6b5
                                                        SHA512:e0ced38509939dfaf7b66c0a4ba05f84540267540f2b7f2aa3482bd4bcd1eb242159b4a6fcffd6f931999212c45f5ef9f02028e95101527e7cf50670ec276716
                                                        SSDEEP:768:Cr1Yhr8CoVRcbTN6ykDks/YnPr3ic8j/y9q3UELC/:CGZ8CNNIkCyjI/L0
                                                        TLSH:C9F2F173F71B6392DD320638B9494916102B4EBCF0A822E13F69215767C63435AAF6DB
                                                        File Content Preview:.ELF..............(..... ...4...........4. ...(.........................................8]..8...8...................Q.td............................>. NUPX!....................S..........?.E.h;....#..$..1)...S......K.....E...%.C*|..u'.kd.(f.:$'....o.x.A.<

                                                        ELF header

                                                        Class:ELF32
                                                        Data:2's complement, little endian
                                                        Version:1 (current)
                                                        Machine:ARM
                                                        Version Number:0x1
                                                        Type:EXEC (Executable file)
                                                        OS/ABI:UNIX - Linux
                                                        ABI Version:0
                                                        Entry Point Address:0xf920
                                                        Flags:0x4000002
                                                        ELF Header Size:52
                                                        Program Header Offset:52
                                                        Program Header Size:32
                                                        Number of Program Headers:3
                                                        Section Header Offset:0
                                                        Section Header Size:40
                                                        Number of Section Headers:0
                                                        Header String Table Index:0
                                                        TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                                        LOAD0x00x80000x80000x8b0d0x8b0d7.96120x5R E0x8000
                                                        LOAD0x5d380x2dd380x2dd380x00x00.00000x6RW 0x8000
                                                        GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

                                                        Download Network PCAP: filteredfull

                                                        • Total Packets: 7
                                                        • 443 (HTTPS)
                                                        • 53 (DNS)
                                                        TimestampSource PortDest PortSource IPDest IP
                                                        Mar 26, 2025 07:04:02.207048893 CET58866443192.168.2.1354.171.230.55
                                                        Mar 26, 2025 07:04:30.766269922 CET50538443192.168.2.1334.243.160.129
                                                        Mar 26, 2025 07:04:30.766351938 CET4435053834.243.160.129192.168.2.13
                                                        Mar 26, 2025 07:04:30.766469955 CET50538443192.168.2.1334.243.160.129
                                                        Mar 26, 2025 07:04:30.768681049 CET50538443192.168.2.1334.243.160.129
                                                        Mar 26, 2025 07:04:30.768712997 CET4435053834.243.160.129192.168.2.13
                                                        Mar 26, 2025 07:05:30.766937971 CET50538443192.168.2.1334.243.160.129
                                                        Mar 26, 2025 07:05:30.808283091 CET4435053834.243.160.129192.168.2.13
                                                        Mar 26, 2025 07:06:07.414879084 CET4435053834.243.160.129192.168.2.13
                                                        TimestampSource PortDest PortSource IPDest IP
                                                        Mar 26, 2025 07:04:04.599973917 CET5781853192.168.2.131.1.1.1
                                                        Mar 26, 2025 07:04:04.600035906 CET3376953192.168.2.131.1.1.1
                                                        Mar 26, 2025 07:04:04.699074984 CET53337691.1.1.1192.168.2.13
                                                        Mar 26, 2025 07:04:04.699410915 CET53578181.1.1.1192.168.2.13
                                                        TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
                                                        Mar 26, 2025 07:04:04.599973917 CET192.168.2.131.1.1.10x2d28Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
                                                        Mar 26, 2025 07:04:04.600035906 CET192.168.2.131.1.1.10xaefaStandard query (0)daisy.ubuntu.com28IN (0x0001)false
                                                        TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
                                                        Mar 26, 2025 07:04:04.699410915 CET1.1.1.1192.168.2.130x2d28No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
                                                        Mar 26, 2025 07:04:04.699410915 CET1.1.1.1192.168.2.130x2d28No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

                                                        System Behavior

                                                        Start time (UTC):06:04:02
                                                        Start date (UTC):26/03/2025
                                                        Path:/tmp/boatnet.arm6.elf
                                                        Arguments:/tmp/boatnet.arm6.elf
                                                        File size:4956856 bytes
                                                        MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

                                                        Start time (UTC):06:05:29
                                                        Start date (UTC):26/03/2025
                                                        Path:/usr/bin/dash
                                                        Arguments:-
                                                        File size:129816 bytes
                                                        MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                        Start time (UTC):06:05:29
                                                        Start date (UTC):26/03/2025
                                                        Path:/usr/bin/rm
                                                        Arguments:rm -f /tmp/tmp.mRjUtnCKxx /tmp/tmp.AnFyovL7PA /tmp/tmp.dU8FIZNz3Q
                                                        File size:72056 bytes
                                                        MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                                        Start time (UTC):06:05:30
                                                        Start date (UTC):26/03/2025
                                                        Path:/usr/bin/dash
                                                        Arguments:-
                                                        File size:129816 bytes
                                                        MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                                        Start time (UTC):06:05:30
                                                        Start date (UTC):26/03/2025
                                                        Path:/usr/bin/rm
                                                        Arguments:rm -f /tmp/tmp.mRjUtnCKxx /tmp/tmp.AnFyovL7PA /tmp/tmp.dU8FIZNz3Q
                                                        File size:72056 bytes
                                                        MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b