Joe Sandbox Cloud Basic Analysis Report
Edit tour

Linux Analysis Report
mips.elf

Overview

General Information

Sample name:mips.elf
Analysis ID:1649598
MD5:35574ec1aac95cf83af877f2adcae3af
SHA1:512eda30bfc6014324e51655683e3047b6eb9e92
SHA256:c2e588fa1f0891fcc9d99ddf2bfb281179dc2170346d286fd7e80aa8e547698d
Tags:elfuser-abuse_ch
Infos:

Detection

Mirai
Score:48
Range:0 - 100

Signatures

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:1649598
Start date and time:2025-03-26 23:33:16 +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:mal48.troj.linELF@0/0@2/0

Runtime Messages

Command:/tmp/mips.elf
PID:5491
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: 5491, Parent: 5411, 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
    5491.1.00007f35ec400000.00007f35ec41c000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security

      Suricata Signatures

      ⊘No Suricata rule has matched

      Joe Sandbox Signatures

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

      Click to jump to signature section

      Show All Signature Results
      Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com
      Source: classification engineClassification label: mal48.troj.linELF@0/0@2/0
      Source: /tmp/mips.elf (PID: 5491)Queries kernel information via 'uname': Jump to behavior
      Source: mips.elf, 5491.1.000055d16e7d8000.000055d16e85f000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/mips
      Source: mips.elf, 5491.1.000055d16e7d8000.000055d16e85f000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
      Source: mips.elf, 5491.1.00007fff7f74a000.00007fff7f76b000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
      Source: mips.elf, 5491.1.00007fff7f74a000.00007fff7f76b000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
      Source: mips.elf, 5491.1.00007fff7f74a000.00007fff7f76b000.rw-.sdmpBinary or memory string: Bx86_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

      Stealing of Sensitive Information

      barindex
      Source: Yara matchFile source: mips.elf, type: SAMPLE
      Source: Yara matchFile source: 5491.1.00007f35ec400000.00007f35ec41c000.r-x.sdmp, type: MEMORY

      Remote Access Functionality

      barindex
      Source: Yara matchFile source: mips.elf, type: SAMPLE
      Source: Yara matchFile source: 5491.1.00007f35ec400000.00007f35ec41c000.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: 1649598 Sample: mips.elf Startdate: 26/03/2025 Architecture: LINUX Score: 48 8 daisy.ubuntu.com 2->8 10 Yara detected Mirai 2->10 6 mips.elf 2->6         started        signatures3 process4

      Screenshots

      Download Video

      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.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.comsh4.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        eehah4.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        arm.elfGet hashmaliciousMiraiBrowse
        • 162.213.35.25
        W3vOaER1Rg.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        efea6.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        vejfa5.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        efefa7.elfGet hashmaliciousMiraiBrowse
        • 162.213.35.25
        jfeeps.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        arm6.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        rjfe686.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24

        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):5.084567193413681
        TrID:
        • ELF Executable and Linkable format (generic) (4004/1) 100.00%
        File name:mips.elf
        File size:118'124 bytes
        MD5:35574ec1aac95cf83af877f2adcae3af
        SHA1:512eda30bfc6014324e51655683e3047b6eb9e92
        SHA256:c2e588fa1f0891fcc9d99ddf2bfb281179dc2170346d286fd7e80aa8e547698d
        SHA512:91e271dee9901cb1474d87fe9892110d0b7fbf288940a4360671996193932ad6905828a1d4c1711b8849b29e9fa798351ffd2f3b68ad3b0160c9c637162dd38a
        SSDEEP:3072:CwH0Cuw7lS3f6IFq5XbEQDNzE5SOS/hu0jn:dH0pwaf6Ic5XoQDNYSOCb
        TLSH:6EB3630F9D218F6FF229C33647F78960B3A426D323D7E649D25CD6211E6438E641BBA4
        File Content Preview:.ELF.....................@.`...4...d.....4. ...(.............@...@...........................E...E........nt............................................'.D|...!'.......................<...'.DX...!... ....'9... ......................<...'.D(...!........'9.

        Network Behavior

        Download Network PCAP: filtered – full

        TimestampSource PortDest PortSource IPDest IP
        Mar 26, 2025 23:34:03.491553068 CET5811853192.168.2.148.8.8.8
        Mar 26, 2025 23:34:03.491636992 CET5864253192.168.2.148.8.8.8
        Mar 26, 2025 23:34:03.577372074 CET53586428.8.8.8192.168.2.14
        Mar 26, 2025 23:34:03.577394962 CET53581188.8.8.8192.168.2.14

        DNS Queries

        TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
        Mar 26, 2025 23:34:03.491553068 CET192.168.2.148.8.8.80x534cStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
        Mar 26, 2025 23:34:03.491636992 CET192.168.2.148.8.8.80x8bdbStandard query (0)daisy.ubuntu.com28IN (0x0001)false

        DNS Answers

        TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
        Mar 26, 2025 23:34:03.577394962 CET8.8.8.8192.168.2.140x534cNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
        Mar 26, 2025 23:34:03.577394962 CET8.8.8.8192.168.2.140x534cNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

        System Behavior

        General

        Start time (UTC):22:34:01
        Start date (UTC):26/03/2025
        Path:/tmp/mips.elf
        Arguments:/tmp/mips.elf
        File size:5777432 bytes
        MD5 hash:0083f1f0e77be34ad27f849842bbb00c

        File Activities

        Process Activities

        System Activities