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Linux Analysis Report
arm6.elf

Overview

General Information

Sample name:arm6.elf
Analysis ID:1597852
MD5:93d3e1588316b7c748fff15a858d5277
SHA1:28aa74ba9eb207ef49b2c04d19366194fb6aad89
SHA256:8e8a9527eaa9609c8696ec851a88cb1966a54d62808fbbab0b230a028ba982f8
Tags:elfuser-abuse_ch
Infos:

Detection

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

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Yara detected Moobot
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:1597852
Start date and time:2025-01-23 18:35:43 +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:arm6.elf
Detection:MAL
Classification:mal64.troj.linELF@0/0@2/0

Runtime Messages

Command:/tmp/arm6.elf
PID:5489
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
  • arm6.elf (PID: 5489, Parent: 5414, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm6.elf
  • cleanup

Malware Threat Intel

Provided by

NameDescriptionAttributionBlogpost URLsLink
MooBotNo Attributionhttps://malpedia.caad.fkie.fraunhofer.de/details/elf.moobot

Yara Signatures

Initial Sample

SourceRuleDescriptionAuthorStrings
arm6.elfJoeSecurity_MoobotYara detected MoobotJoe Security

    Memory Dumps

    SourceRuleDescriptionAuthorStrings
    5489.1.00007f6008017000.00007f6008027000.r-x.sdmpJoeSecurity_MoobotYara detected MoobotJoe Security
      Process Memory Space: arm6.elf PID: 5489JoeSecurity_MoobotYara detected MoobotJoe Security

        Suricata Signatures

        ⊘No Suricata rule has matched

        Joe Sandbox Signatures

        • • AV Detection
        • • 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: arm6.elfAvira: detected
        Source: arm6.elfVirustotal: Detection: 62%Perma Link
        Source: arm6.elfReversingLabs: Detection: 65%
        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: ELF static info symbol of initial sample.symtab present: no
        Source: classification engineClassification label: mal64.troj.linELF@0/0@2/0
        Source: /tmp/arm6.elf (PID: 5489)Queries kernel information via 'uname': Jump to behavior
        Source: arm6.elf, 5489.1.000055cccf7db000.000055cccf909000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
        Source: arm6.elf, 5489.1.00007ffca2bc4000.00007ffca2be5000.rw-.sdmpBinary or memory string: oLVx86_64/usr/bin/qemu-arm/tmp/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/arm6.elf
        Source: arm6.elf, 5489.1.000055cccf7db000.000055cccf909000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
        Source: arm6.elf, 5489.1.00007ffca2bc4000.00007ffca2be5000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
        Source: arm6.elf, 5489.1.00007ffca2bc4000.00007ffca2be5000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

        Stealing of Sensitive Information

        barindex
        Source: Yara matchFile source: arm6.elf, type: SAMPLE
        Source: Yara matchFile source: 5489.1.00007f6008017000.00007f6008027000.r-x.sdmp, type: MEMORY
        Source: Yara matchFile source: Process Memory Space: arm6.elf PID: 5489, type: MEMORYSTR

        Remote Access Functionality

        barindex
        Source: Yara matchFile source: arm6.elf, type: SAMPLE
        Source: Yara matchFile source: 5489.1.00007f6008017000.00007f6008027000.r-x.sdmp, type: MEMORY
        Source: Yara matchFile source: Process Memory Space: arm6.elf PID: 5489, type: MEMORYSTR

        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: 1597852 Sample: arm6.elf Startdate: 23/01/2025 Architecture: LINUX Score: 64 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 Moobot 2->14 6 arm6.elf 2->6         started        signatures3 process4

        Antivirus, Machine Learning and Genetic Malware Detection

        Initial Sample

        SourceDetectionScannerLabelLink
        arm6.elf63%VirustotalBrowse
        arm6.elf66%ReversingLabsLinux.Trojan.Mirai
        arm6.elf100%AviraLINUX/Mirai.bonb

        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
        		162.213.35.24
        		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.comarm5.elfGet hashmaliciousMoobotBrowse
          • 162.213.35.25
          telnet.mips.elfGet hashmaliciousUnknownBrowse
          • 162.213.35.25
          telnet.arm5.elfGet hashmaliciousUnknownBrowse
          • 162.213.35.24
          telnet.arm6.elfGet hashmaliciousUnknownBrowse
          • 162.213.35.25
          armv4l.elfGet hashmaliciousGafgyt, MiraiBrowse
          • 162.213.35.25
          telnet.arm7.elfGet hashmaliciousUnknownBrowse
          • 162.213.35.24
          m68k.elfGet hashmaliciousGafgyt, MiraiBrowse
          • 162.213.35.25
          powerpc.elfGet hashmaliciousGafgyt, MiraiBrowse
          • 162.213.35.24
          x86.elfGet hashmaliciousGafgyt, MiraiBrowse
          • 162.213.35.24
          Fantazy.ppc.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 LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
          Entropy (8bit):6.051704657766567
          TrID:
          • ELF Executable and Linkable format (generic) (4004/1) 100.00%
          File name:arm6.elf
          File size:62'820 bytes
          MD5:93d3e1588316b7c748fff15a858d5277
          SHA1:28aa74ba9eb207ef49b2c04d19366194fb6aad89
          SHA256:8e8a9527eaa9609c8696ec851a88cb1966a54d62808fbbab0b230a028ba982f8
          SHA512:2662b03db2d2a83a99d2ea27393011b6b89874fd450fdbbfce5a56937a948a9521276a5f0ff1853f27fdba942b6a40e26cbc956fe0b2578ade245ebd741a31d6
          SSDEEP:1536:sEnOSYIfQVz0uT4YDnJYygvTpcWgMnjOMKij9WVh8E:PYtAHYtYFFf9WVh8E
          TLSH:99531A46FC818A11C9D4137AFA2E118E33136768E2DF7212DE115F2477CA96F0E7B856
          File Content Preview:.ELF..............(.....T...4...........4. ...(.....................|...|.......................|...................Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.X.......|.....-.@0....S

          Static ELF Info

          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:62380
          Section Header Size:40
          Number of Section Headers:11
          Header String Table Index:10

          Sections

          NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
          NULL0x00x00x00x00x0000
          .initPROGBITS0x80940x940x100x00x6AX004
          .textPROGBITS0x80b00xb00xe5cc0x00x6AX0016
          .finiPROGBITS0x1667c0xe67c0x100x00x6AX004
          .rodataPROGBITS0x1668c0xe68c0x9f00x00x2A004
          .init_arrayINIT_ARRAY0x1f0800xf0840x40x00x3WA004
          .fini_arrayFINI_ARRAY0x1f0840xf0880x40x00x3WA004
          .gotPROGBITS0x1f08c0xf0900x740x40x3WA004
          .dataPROGBITS0x1f1000xf1040x2580x00x3WA004
          .bssNOBITS0x1f3580xf35c0x25dc0x00x3WA004
          .shstrtabSTRTAB0x00xf35c0x4d0x00x0001

          Program Segments

          TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
          LOAD0x00x80000x80000xf07c0xf07c6.07330x5R E0x8000.init .text .fini .rodata
          LOAD0xf0800x1f0800x1f07c0x2dc0xa8b43.65340x6RW 0x8000.init_array .fini_array .got .data .bss
          GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

          Network Behavior

          Download Network PCAP: filtered – full

          TimestampSource PortDest PortSource IPDest IP
          Jan 23, 2025 18:36:31.685982943 CET5965453192.168.2.141.1.1.1
          Jan 23, 2025 18:36:31.686041117 CET3359753192.168.2.141.1.1.1
          Jan 23, 2025 18:36:31.692934990 CET53335971.1.1.1192.168.2.14
          Jan 23, 2025 18:36:31.693525076 CET53596541.1.1.1192.168.2.14

          DNS Queries

          TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
          Jan 23, 2025 18:36:31.685982943 CET192.168.2.141.1.1.10x9320Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
          Jan 23, 2025 18:36:31.686041117 CET192.168.2.141.1.1.10xc766Standard query (0)daisy.ubuntu.com28IN (0x0001)false

          DNS Answers

          TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
          Jan 23, 2025 18:36:31.693525076 CET1.1.1.1192.168.2.140x9320No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
          Jan 23, 2025 18:36:31.693525076 CET1.1.1.1192.168.2.140x9320No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

          System Behavior

          General

          Start time (UTC):17:36:29
          Start date (UTC):23/01/2025
          Path:/tmp/arm6.elf
          Arguments:/tmp/arm6.elf
          File size:4956856 bytes
          MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

          File Activities

          Process Activities

          System Activities