Joe Sandbox Cloud Basic Analysis Report
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Linux Analysis Report
mips.elf

Overview

General Information

Sample name:mips.elf
Analysis ID:1647838
MD5:33248a44f2bd39cd3ea6d3d7ebd41e1e
SHA1:f16b28ff21448467fe540988bb7d47721927a107
SHA256:dd0ce3806606510f9fcae6bd2e8babec0fcc1d19253cc1679a5c36e0dbef7f5b
Tags:elfuser-abuse_ch
Infos:

Detection

Mirai
Score:56
Range:0 - 100

Signatures

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

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious

General Information

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1647838
Start date and time:2025-03-25 10:22:39 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 28s
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:mips.elf
Detection:MAL
Classification:mal56.troj.linELF@0/0@2/0

Runtime Messages

Command:/tmp/mips.elf
PID:5500
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
  • mips.elf (PID: 5500, Parent: 5416, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/mips.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
mips.elfJoeSecurity_Mirai_8Yara detected MiraiJoe Security

    Memory Dumps

    SourceRuleDescriptionAuthorStrings
    5500.1.00007fad1c400000.00007fad1c41c000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security

      Suricata Signatures

      ⊘No Suricata rule has matched

      Joe Sandbox Signatures

      • • AV Detection
      • • Networking
      • • System Summary
      • • Malware Analysis System Evasion
      • • Stealing of Sensitive Information
      • • Remote Access Functionality

      Click to jump to signature section

      Show All Signature Results

      AV Detection

      barindex
      Source: mips.elfVirustotal: Detection: 11%Perma Link
      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: classification engineClassification label: mal56.troj.linELF@0/0@2/0
      Source: /tmp/mips.elf (PID: 5500)Queries kernel information via 'uname': Jump to behavior
      Source: mips.elf, 5500.1.000055fc6abba000.000055fc6ac41000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/mips
      Source: mips.elf, 5500.1.000055fc6abba000.000055fc6ac41000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
      Source: mips.elf, 5500.1.00007ffe1287a000.00007ffe1289b000.rw-.sdmpBinary or memory string: vx86_64/usr/bin/qemu-mips/tmp/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/mips.elf
      Source: mips.elf, 5500.1.00007ffe1287a000.00007ffe1289b000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
      Source: mips.elf, 5500.1.00007ffe1287a000.00007ffe1289b000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

      Stealing of Sensitive Information

      barindex
      Source: Yara matchFile source: mips.elf, type: SAMPLE
      Source: Yara matchFile source: 5500.1.00007fad1c400000.00007fad1c41c000.r-x.sdmp, type: MEMORY

      Remote Access Functionality

      barindex
      Source: Yara matchFile source: mips.elf, type: SAMPLE
      Source: Yara matchFile source: 5500.1.00007fad1c400000.00007fad1c41c000.r-x.sdmp, type: MEMORY

      Mitre Att&ck Matrix

      ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
      Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath 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
      behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1647838 Sample: mips.elf Startdate: 25/03/2025 Architecture: LINUX Score: 56 8 daisy.ubuntu.com 2->8 10 Multi AV Scanner detection for submitted file 2->10 12 Yara detected Mirai 2->12 6 mips.elf 2->6         started        signatures3 process4

      Screenshots

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      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
      mips.elf11%VirustotalBrowse
      mips.elf6%ReversingLabsLinux.Trojan.Mirai

      Dropped Files

      ⊘No Antivirus matches

      Domains

      ⊘No Antivirus matches

      URLs

      ⊘No Antivirus matches

      Domains and IPs

      Download Network PCAP: filtered – full

      Contacted Domains

      NameIPActiveMaliciousAntivirus DetectionReputation
      daisy.ubuntu.com
      		162.213.35.25
      		truefalse
        		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.comarm7.elfGet hashmaliciousMiraiBrowse
        • 162.213.35.24
        arm5.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        mips.elfGet hashmaliciousMiraiBrowse
        • 162.213.35.24
        arm5.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        arm7.elfGet hashmaliciousMiraiBrowse
        • 162.213.35.24
        arm.elfGet hashmaliciousMiraiBrowse
        • 162.213.35.25
        arm7.elfGet hashmaliciousMiraiBrowse
        • 162.213.35.25
        arm5.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        arm6.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        arm5.elfGet hashmaliciousUnknownBrowse
        • 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 MSB executable, MIPS, MIPS-I version 1 (SYSV), dynamically linked, stripped
        Entropy (8bit):5.120891463682585
        TrID:
        • ELF Executable and Linkable format (generic) (4004/1) 100.00%
        File name:mips.elf
        File size:118'220 bytes
        MD5:33248a44f2bd39cd3ea6d3d7ebd41e1e
        SHA1:f16b28ff21448467fe540988bb7d47721927a107
        SHA256:dd0ce3806606510f9fcae6bd2e8babec0fcc1d19253cc1679a5c36e0dbef7f5b
        SHA512:3e9c1ead6f9129a90236fcebde7866164486b7114e1b55a48eeadc67000f4943624e2fe143592cd512a5dc2995eeacd77939533e617c3c387d06edae07da7c5d
        SSDEEP:3072:36flcqnrNvOmbs9aLpvK/rj3fVSkI4ZHqQmucp:36matS/rjPVSkI4xAp
        TLSH:E6C3630E99258F6FF22DC33643F7C660A36526D723D7E24AD25CE5201E6438E641FBA4
        File Content Preview:.ELF.....................@.`...4.........4. ...(.............@...@...........................E...E.....l..n.............................................'.D....!'.......................<...'.D....!... ....'9... ......................<...'.D....!........'9.

        Network Behavior

        Download Network PCAP: filtered – full

        TimestampSource PortDest PortSource IPDest IP
        Mar 25, 2025 10:23:33.041318893 CET3679053192.168.2.141.1.1.1
        Mar 25, 2025 10:23:33.041385889 CET4195453192.168.2.141.1.1.1
        Mar 25, 2025 10:23:33.047719955 CET53419541.1.1.1192.168.2.14
        Mar 25, 2025 10:23:33.048728943 CET53367901.1.1.1192.168.2.14

        DNS Queries

        TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
        Mar 25, 2025 10:23:33.041318893 CET192.168.2.141.1.1.10x956eStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
        Mar 25, 2025 10:23:33.041385889 CET192.168.2.141.1.1.10x45c4Standard query (0)daisy.ubuntu.com28IN (0x0001)false

        DNS Answers

        TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
        Mar 25, 2025 10:23:33.048728943 CET1.1.1.1192.168.2.140x956eNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
        Mar 25, 2025 10:23:33.048728943 CET1.1.1.1192.168.2.140x956eNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

        System Behavior

        General

        Start time (UTC):09:23:28
        Start date (UTC):25/03/2025
        Path:/tmp/mips.elf
        Arguments:/tmp/mips.elf
        File size:5777432 bytes
        MD5 hash:0083f1f0e77be34ad27f849842bbb00c

        File Activities

        Process Activities

        System Activities