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Linux Analysis Report
mips.elf

Overview

General Information

Sample name:mips.elf
Analysis ID:1639683
MD5:7c2f50606199ee9d255dd1a1c69fb4b7
SHA1:41d63638ac0eb1628d2b412fb3ccb1199ba87c10
SHA256:857e37868398a5fc1c6c8817f34c3bfc67e168fd63aed974e55449d74fcbcb01
Tags:elfuser-abuse_ch
Infos:

Detection

Mirai
Score:56
Range:0 - 100

Signatures

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

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1639683
Start date and time:2025-03-16 02:40:58 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 38s
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
Command:/tmp/mips.elf
PID:5825
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
  • mips.elf (PID: 5825, Parent: 5751, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/mips.elf
  • 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
mips.elfJoeSecurity_Mirai_8Yara detected MiraiJoe Security
    SourceRuleDescriptionAuthorStrings
    5825.1.00007f0414400000.00007f041441d000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security
      No Suricata rule has matched

      Click to jump to signature section

      Show All Signature Results

      AV Detection

      barindex
      Source: mips.elfVirustotal: Detection: 10%Perma Link
      Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com
      Source: ELF static info symbol of initial sample.symtab present: no
      Source: classification engineClassification label: mal56.troj.linELF@0/0@2/0
      Source: /tmp/mips.elf (PID: 5825)Queries kernel information via 'uname': Jump to behavior
      Source: mips.elf, 5825.1.0000564d9e77e000.0000564d9e805000.rw-.sdmpBinary or memory string: MV!/etc/qemu-binfmt/mips
      Source: mips.elf, 5825.1.0000564d9e77e000.0000564d9e805000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
      Source: mips.elf, 5825.1.00007fff0b639000.00007fff0b65a000.rw-.sdmpBinary or memory string: x86_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, 5825.1.00007fff0b639000.00007fff0b65a000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
      Source: mips.elf, 5825.1.00007fff0b639000.00007fff0b65a000.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: 5825.1.00007f0414400000.00007f041441d000.r-x.sdmp, type: MEMORY

      Remote Access Functionality

      barindex
      Source: Yara matchFile source: mips.elf, type: SAMPLE
      Source: Yara matchFile source: 5825.1.00007f0414400000.00007f041441d000.r-x.sdmp, type: MEMORY
      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
      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: 1639683 Sample: mips.elf Startdate: 16/03/2025 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
      SourceDetectionScannerLabelLink
      mips.elf11%VirustotalBrowse
      mips.elf6%ReversingLabsLinux.Trojan.Mirai
      No Antivirus matches
      No Antivirus matches
      No Antivirus matches

      Download Network PCAP: filteredfull

      NameIPActiveMaliciousAntivirus DetectionReputation
      daisy.ubuntu.com
      162.213.35.24
      truefalse
        high
        No contacted IP infos
        No context
        MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
        daisy.ubuntu.comarm.elfGet hashmaliciousMiraiBrowse
        • 162.213.35.25
        arm6.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        .i.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        .i.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        .i.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        sshd.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        .i.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        sshd.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.24
        .i.elfGet hashmaliciousUnknownBrowse
        • 162.213.35.25
        No context
        No context
        No context
        No created / dropped files found
        File type:ELF 32-bit MSB executable, MIPS, MIPS-I version 1 (SYSV), dynamically linked, stripped
        Entropy (8bit):5.137143763650039
        TrID:
        • ELF Executable and Linkable format (generic) (4004/1) 100.00%
        File name:mips.elf
        File size:122'204 bytes
        MD5:7c2f50606199ee9d255dd1a1c69fb4b7
        SHA1:41d63638ac0eb1628d2b412fb3ccb1199ba87c10
        SHA256:857e37868398a5fc1c6c8817f34c3bfc67e168fd63aed974e55449d74fcbcb01
        SHA512:2e9ca49900ead487f3c0735b021bbbaaf3e321aa069e99d866a1c7869aba8fbc1506c298baa2181e6f09c10602ee451b751cbd0eee529e4d9b7a94349c3da261
        SSDEEP:1536:TExamSU7iongixl9AT9slypAYoqGZYDPWRA7Hxu0s+eqOOnzT:TEEmSDongixpYpPWROuj+fnzT
        TLSH:4DC3740FAA219F6FF22DC33647F7C664B36926D223D7E24AD25CD6200E6434E541BB64
        File Content Preview:.ELF.....................@.`...4...T.....4. ...(.............@...@.....p...p.................E...E........nt............................................'.Tl...!'.......................<...'.TH...!... ....'9... ......................<...'.T....!........'9.

        ELF header

        Class:ELF32
        Data:2's complement, big endian
        Version:1 (current)
        Machine:MIPS R3000
        Version Number:0x1
        Type:EXEC (Executable file)
        OS/ABI:UNIX - System V
        ABI Version:0
        Entry Point Address:0x400260
        Flags:0x1007
        ELF Header Size:52
        Program Header Offset:52
        Program Header Size:32
        Number of Program Headers:3
        Section Header Offset:121684
        Section Header Size:40
        Number of Section Headers:13
        Header String Table Index:12
        NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
        shstrtabNULL0x00x00x00x00x0002
        .initPROGBITS0x4000940x940x8c0x00x6AX204
        .textPROGBITS0x4001200x20x1a7200x00x6AX0016
        .PROGBITS0x41a8400x1a8400x5c0x00x2A004
        shstrtabPROGBITS0x41a8a00x1a8a00x21d00x00x2A002
        .ctorsPROGBITS0x45d0000x1d0000x80x00x3WA204
        .dtorsPROGBITS0x45d0080x20x80x00x3WA004
        .dataPROGBITS0x45d0140x1d0140xa80x00x2A004
        shstrtabPROGBITS0x45d0c00x1d0c00x4440x00x3WA002
        .gotPROGBITS0x45d5100x1d5100x5ec0x40x10000003WAp2016
        .sbssNOBITS0x45dafc0x20x1c0x00x10000003WAp004
        .bssNOBITS0x45db200x1dafc0x63540x00x2A0016
        .shstrtabSTRTAB0x00x1dafc0x560x00x0001
        TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
        LOAD0x00x4000000x4000000x1ca700x1ca705.19400x5R E0x10000.init .text . shstrtab
        LOAD0x1d0000x45d0000x45d0000xafc0x6e743.89120x6RW 0x10000.ctors .data shstrtab .got .sbss .bss
        DYNAMIC0x00x00x00x00x00.00000x7RWE0x4

        Download Network PCAP: filteredfull

        TimestampSource PortDest PortSource IPDest IP
        Mar 16, 2025 02:42:03.616823912 CET5577653192.168.2.158.8.8.8
        Mar 16, 2025 02:42:03.621682882 CET53557768.8.8.8192.168.2.15
        Mar 16, 2025 02:42:03.621737957 CET5577653192.168.2.158.8.8.8
        Mar 16, 2025 02:42:03.621763945 CET5577653192.168.2.158.8.8.8
        Mar 16, 2025 02:42:03.621792078 CET5577653192.168.2.158.8.8.8
        Mar 16, 2025 02:42:03.626581907 CET53557768.8.8.8192.168.2.15
        Mar 16, 2025 02:42:03.626605988 CET53557768.8.8.8192.168.2.15
        Mar 16, 2025 02:42:04.074445009 CET53557768.8.8.8192.168.2.15
        Mar 16, 2025 02:42:04.074604034 CET5577653192.168.2.158.8.8.8
        Mar 16, 2025 02:42:06.074172020 CET53557768.8.8.8192.168.2.15
        Mar 16, 2025 02:42:06.074414968 CET5577653192.168.2.158.8.8.8
        Mar 16, 2025 02:42:06.079166889 CET53557768.8.8.8192.168.2.15
        TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
        Mar 16, 2025 02:42:03.621763945 CET192.168.2.158.8.8.80xe4e8Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
        Mar 16, 2025 02:42:03.621792078 CET192.168.2.158.8.8.80x6920Standard query (0)daisy.ubuntu.com28IN (0x0001)false
        TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
        Mar 16, 2025 02:42:04.074445009 CET8.8.8.8192.168.2.150xe4e8No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
        Mar 16, 2025 02:42:04.074445009 CET8.8.8.8192.168.2.150xe4e8No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

        System Behavior

        Start time (UTC):01:42:01
        Start date (UTC):16/03/2025
        Path:/tmp/mips.elf
        Arguments:/tmp/mips.elf
        File size:5777432 bytes
        MD5 hash:0083f1f0e77be34ad27f849842bbb00c