Joe Sandbox Cloud Basic Analysis Report

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Linux Analysis Report
arm5.elf

Overview

General Information

Sample name:arm5.elf
Analysis ID:1543109
MD5:5f91760acadeeb8da9be0e8e3e96c146
SHA1:d651f3746a68e5fc93292706c3ddbdde6f0f314d
SHA256:edffa5484df311638141cbdb6cdc2209532e0d9ef4a93ee813d5eecd9fe45046
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100
Whitelisted:false

Signatures

Multi AV Scanner detection for submitted file
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

General Information

Joe Sandbox version:41.0.0 Charoite
Analysis ID:1543109
Start date and time:2024-10-27 09:09:54 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 10m 36s
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:arm5.elf
Detection:MAL
Classification:mal48.linELF@0/0@2/0
Cookbook Comments:
  • Analysis time extended to 480s due to sleep detection in submitted sample

Warnings

  • Max analysis timeout: 600s exceeded, the analysis took too long
  • VT rate limit hit for: arm5.elf

Runtime Messages

Command:/tmp/arm5.elf
PID:5493
Exit Code:255
Exit Code Info:
Killed:False
Standard Output:

Standard Error:/lib/ld-uClibc.so.0: No such file or directory

Process Tree

  • system is lnxubuntu20
  • arm5.elf (PID: 5493, Parent: 5416, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm5.elf
  • cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Multi AV Scanner detection for submitted file
Source: arm5.elfReversingLabs: Detection: 39%
Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com
Source: Initial sampleString containing 'busybox' found: busybox
Source: Initial sampleString containing 'busybox' found: sys_monitor_cnrbusyboxadbddockerdBlink_Cloudsystemdhttpshsshdbashmsg_centerlte_mgrmain_mgrarm7arm5arm6mipsx86_32x86_64/tmp/var/mnt/root/boot/sbin/home/dev/media/opt/../(deleted)x86sh4softbot.armsoftbot.mpsl/dev/watchdog/dev/misc/watchdog/hello
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal48.linELF@0/0@2/0
Source: /tmp/arm5.elf (PID: 5493)Queries kernel information via 'uname': Jump to behavior
Source: arm5.elf, 5493.1.00005631b09f5000.00005631b0b23000.rw-.sdmpBinary or memory string: 1V!/etc/qemu-binfmt/arm
Source: arm5.elf, 5493.1.00007fffab958000.00007fffab979000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm5.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/arm5.elf
Source: arm5.elf, 5493.1.00007fffab958000.00007fffab979000.rw-.sdmpBinary or memory string: qemu: %s: %s
Source: arm5.elf, 5493.1.00007fffab958000.00007fffab979000.rw-.sdmpBinary or memory string: leqemu: %s: %s
Source: arm5.elf, 5493.1.00005631b09f5000.00005631b0b23000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: arm5.elf, 5493.1.00007fffab958000.00007fffab979000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: arm5.elf, 5493.1.00005631b09f5000.00005631b0b23000.rw-.sdmpBinary or memory string: rg.qemu.gdb.arm.sys.regs">
Source: arm5.elf, 5493.1.00005631b09f5000.00005631b0b23000.rw-.sdmpBinary or memory string: 1Vrg.qemu.gdb.arm.sys.regs">

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

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
arm5.elf39%ReversingLabsLinux.Trojan.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

NameIPActiveMaliciousAntivirus DetectionReputation
daisy.ubuntu.com
162.213.35.24
truefalse
    		unknown

    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.comarm6.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    la.bot.m68k.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    la.bot.arm7.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    la.bot.arm6.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    la.bot.mips.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    kkkarm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    kkkarm7.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    kkkarm6.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    arm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    FBI.mpsl.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 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, version 1 (ARM), dynamically linked, interpreter /lib/ld-uClibc.so.0, stripped
    Entropy (8bit):5.975291366794335
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:arm5.elf
    File size:36'488 bytes
    MD5:5f91760acadeeb8da9be0e8e3e96c146
    SHA1:d651f3746a68e5fc93292706c3ddbdde6f0f314d
    SHA256:edffa5484df311638141cbdb6cdc2209532e0d9ef4a93ee813d5eecd9fe45046
    SHA512:76bc827f47fce2fc15de2b10e7e9832910ca84db83d8aca6b0c130e0255ea9e922d286905925eb1da97e0673cceb410007e14549153ef93ed0a7df1a73603d35
    SSDEEP:768:9/mmkXWZ99qgAOiQFJLuJBDgFU1iS1QM8wFMN+:0Wv9NAPBDIE+w5
    TLSH:10F2F882B8834627C2E413BEAA6E529D336573ACD2CF3327D8115B507B9991F4D63B41
    File Content Preview:.ELF...a..........(.....P...4...........4. ...(.........4...4...4...................................................................................................................................................Q.td............................/lib/ld-uCl

    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:ARM - ABI
    ABI Version:0
    Entry Point Address:0x9150
    Flags:0x2
    ELF Header Size:52
    Program Header Offset:52
    Program Header Size:32
    Number of Program Headers:6
    Section Header Offset:35728
    Section Header Size:40
    Number of Section Headers:19
    Header String Table Index:18

    Sections

    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .interpPROGBITS0x80f40xf40x140x00x2A001
    .hashHASH0x81080x1080x26c0x40x2A304
    .dynsymDYNSYM0x83740x3740x5600x100x2A414
    .dynstrSTRTAB0x88d40x8d40x2b60x00x2A001
    .rel.dynREL0x8b8c0xb8c0x80x80x2A304
    .rel.pltREL0x8b940xb940x1e00x80x2A384
    .initPROGBITS0x8d740xd740x180x00x6AX004
    .pltPROGBITS0x8d8c0xd8c0x2e40x40x6AX004
    .textPROGBITS0x90700x10700x75000x00x6AX004
    .finiPROGBITS0x105700x85700x140x00x6AX004
    .rodataPROGBITS0x105840x85840x2fc0x00x2A004
    .ctorsPROGBITS0x188840x88840x80x00x3WA004
    .dtorsPROGBITS0x1888c0x888c0x80x00x3WA004
    .dynamicDYNAMIC0x188980x88980xb00x80x3WA404
    .gotPROGBITS0x189480x89480xfc0x40x3WA004
    .dataPROGBITS0x18a440x8a440xd00x00x3WA004
    .bssNOBITS0x18b140x8b140xfc0x00x3WA004
    .shstrtabSTRTAB0x00x8b140x7c0x00x0001

    Program Segments

    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    PHDR0x340x80340x80340xc00xc02.24590x5R E0x4
    INTERP0xf40x80f40x80f40x140x143.68420x4R 0x1/lib/ld-uClibc.so.0.interp
    LOAD0x00x80000x80000x88800x88806.03620x5R E0x8000.interp .hash .dynsym .dynstr .rel.dyn .rel.plt .init .plt .text .fini .rodata
    LOAD0x88840x188840x188840x2900x38c3.02910x6RW 0x8000.ctors .dtors .dynamic .got .data .bss
    DYNAMIC0x88980x188980x188980xb00xb01.97810x6RW 0x4.dynamic
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Dynamic Tags

    TypeMetaValueTag
    DT_NEEDEDsharedliblibc.so.00x1
    DT_INITvalue0x8d740xc
    DT_FINIvalue0x105700xd
    DT_HASHvalue0x81080x4
    DT_STRTABvalue0x88d40x5
    DT_SYMTABvalue0x83740x6
    DT_STRSZbytes6940xa
    DT_SYMENTbytes160xb
    DT_DEBUGvalue0x00x15
    DT_PLTGOTvalue0x189480x3
    DT_PLTRELSZbytes4800x2
    DT_PLTRELpltrelDT_REL0x14
    DT_JMPRELvalue0x8b940x17
    DT_RELvalue0x8b8c0x11
    DT_RELSZbytes80x12
    DT_RELENTbytes80x13
    DT_NULLvalue0x00x0

    Symbols

    NameVersion Info NameVersion Info File NameSection NameValueSizeSymbol TypeSymbol BindSymbol VisibilityNdx
    .dynsym0x00NOTYPE<unknown>DEFAULTSHN_UNDEF
    __aeabi_idiv0.dynsym0x105304FUNC<unknown>DEFAULT9
    __aeabi_ldiv0.dynsym0x105304FUNC<unknown>DEFAULT9
    __aeabi_uidiv.dynsym0x102700FUNC<unknown>DEFAULT9
    __aeabi_uidivmod.dynsym0x1036824FUNC<unknown>DEFAULT9
    __bss_end__.dynsym0x18c100NOTYPE<unknown>DEFAULTSHN_ABS
    __bss_start.dynsym0x18b140NOTYPE<unknown>DEFAULTSHN_ABS
    __bss_start__.dynsym0x18b140NOTYPE<unknown>DEFAULTSHN_ABS
    __ctype_b.dynsym0x18b144OBJECT<unknown>DEFAULT19
    __data_start.dynsym0x18a440NOTYPE<unknown>DEFAULT18
    __div0.dynsym0x105304FUNC<unknown>DEFAULT9
    __end__.dynsym0x18c100NOTYPE<unknown>DEFAULTSHN_ABS
    __errno_location.dynsym0x8fd432FUNC<unknown>DEFAULTSHN_UNDEF
    __modsi3.dynsym0x1044c228FUNC<unknown>DEFAULT9
    __uClibc_main.dynsym0x8f68488FUNC<unknown>DEFAULTSHN_UNDEF
    __udivsi3.dynsym0x10270248FUNC<unknown>DEFAULT9
    __umodsi3.dynsym0x10380204FUNC<unknown>DEFAULT9
    _bss_end__.dynsym0x18c100NOTYPE<unknown>DEFAULTSHN_ABS
    _edata.dynsym0x18b140NOTYPE<unknown>DEFAULTSHN_ABS
    _end.dynsym0x18c100NOTYPE<unknown>DEFAULTSHN_ABS
    _start.dynsym0x915080FUNC<unknown>DEFAULT9
    abort.dynsym0x8e90352FUNC<unknown>DEFAULTSHN_UNDEF
    accept.dynsym0x8e9c44FUNC<unknown>DEFAULTSHN_UNDEF
    access.dynsym0x044FUNC<unknown>DEFAULTSHN_UNDEF
    atoi.dynsym0x8fec12FUNC<unknown>DEFAULTSHN_UNDEF
    bind.dynsym0x8ecc44FUNC<unknown>DEFAULTSHN_UNDEF
    calloc.dynsym0x8ea888FUNC<unknown>DEFAULTSHN_UNDEF
    chdir.dynsym0x8ee444FUNC<unknown>DEFAULTSHN_UNDEF
    clock.dynsym0x901052FUNC<unknown>DEFAULTSHN_UNDEF
    close.dynsym0x904044FUNC<unknown>DEFAULTSHN_UNDEF
    closedir.dynsym0x9028196FUNC<unknown>DEFAULTSHN_UNDEF
    connect.dynsym0x8db844FUNC<unknown>DEFAULTSHN_UNDEF
    exit.dynsym0x8fe0172FUNC<unknown>DEFAULTSHN_UNDEF
    fclose.dynsym0x8f8c448FUNC<unknown>DEFAULTSHN_UNDEF
    fcntl.dynsym0x9034116FUNC<unknown>DEFAULTSHN_UNDEF
    fopen.dynsym0x8f7412FUNC<unknown>DEFAULTSHN_UNDEF
    fork.dynsym0x8f5c44FUNC<unknown>DEFAULTSHN_UNDEF
    free.dynsym0x904c288FUNC<unknown>DEFAULTSHN_UNDEF
    fscanf.dynsym0x8e0048FUNC<unknown>DEFAULTSHN_UNDEF
    getpid.dynsym0x8df444FUNC<unknown>DEFAULTSHN_UNDEF
    getppid.dynsym0x8f9844FUNC<unknown>DEFAULTSHN_UNDEF
    getsockname.dynsym0x906444FUNC<unknown>DEFAULTSHN_UNDEF
    getsockopt.dynsym0x8fc848FUNC<unknown>DEFAULTSHN_UNDEF
    inet_addr.dynsym0x8ed836FUNC<unknown>DEFAULTSHN_UNDEF
    inet_pton.dynsym0x8dd0560FUNC<unknown>DEFAULTSHN_UNDEF
    inotify_add_watch.dynsym0x044FUNC<unknown>DEFAULTSHN_UNDEF
    inotify_init.dynsym0x044FUNC<unknown>DEFAULTSHN_UNDEF
    inotify_rm_watch.dynsym0x044FUNC<unknown>DEFAULTSHN_UNDEF
    ioctl.dynsym0x8da080FUNC<unknown>DEFAULTSHN_UNDEF
    kill.dynsym0x8ec044FUNC<unknown>DEFAULTSHN_UNDEF
    listen.dynsym0x8f5044FUNC<unknown>DEFAULTSHN_UNDEF
    malloc.dynsym0x8e30400FUNC<unknown>DEFAULTSHN_UNDEF
    memcpy.dynsym0x8e184FUNC<unknown>DEFAULTSHN_UNDEF
    memset.dynsym0x8f80156FUNC<unknown>DEFAULTSHN_UNDEF
    open.dynsym0x900492FUNC<unknown>DEFAULTSHN_UNDEF
    opendir.dynsym0x8fb0264FUNC<unknown>DEFAULTSHN_UNDEF
    prctl.dynsym0x8e0c48FUNC<unknown>DEFAULTSHN_UNDEF
    rand.dynsym0x8f084FUNC<unknown>DEFAULTSHN_UNDEF
    read.dynsym0x8f2044FUNC<unknown>DEFAULTSHN_UNDEF
    readdir.dynsym0x8e6c224FUNC<unknown>DEFAULTSHN_UNDEF
    readlink.dynsym0x8e2444FUNC<unknown>DEFAULTSHN_UNDEF
    realloc.dynsym0x8f44312FUNC<unknown>DEFAULTSHN_UNDEF
    recv.dynsym0x8dac44FUNC<unknown>DEFAULTSHN_UNDEF
    recvfrom.dynsym0x8e4852FUNC<unknown>DEFAULTSHN_UNDEF
    remove.dynsym0x072FUNC<unknown>DEFAULTSHN_UNDEF
    select.dynsym0x8e6048FUNC<unknown>DEFAULTSHN_UNDEF
    send.dynsym0x8e8444FUNC<unknown>DEFAULTSHN_UNDEF
    sendto.dynsym0x8f3852FUNC<unknown>DEFAULTSHN_UNDEF
    setsid.dynsym0x901c44FUNC<unknown>DEFAULTSHN_UNDEF
    setsockopt.dynsym0x8ef048FUNC<unknown>DEFAULTSHN_UNDEF
    sigaddset.dynsym0x8e7848FUNC<unknown>DEFAULTSHN_UNDEF
    sigemptyset.dynsym0x8dc424FUNC<unknown>DEFAULTSHN_UNDEF
    signal.dynsym0x8f14200FUNC<unknown>DEFAULTSHN_UNDEF
    sigprocmask.dynsym0x905884FUNC<unknown>DEFAULTSHN_UNDEF
    sleep.dynsym0x8e3c420FUNC<unknown>DEFAULTSHN_UNDEF
    snprintf.dynsym0x8ddc48FUNC<unknown>DEFAULTSHN_UNDEF
    socket.dynsym0x8e5444FUNC<unknown>DEFAULTSHN_UNDEF
    strcat.dynsym0x040FUNC<unknown>DEFAULTSHN_UNDEF
    strcmp.dynsym0x8fbc28FUNC<unknown>DEFAULTSHN_UNDEF
    strcpy.dynsym0x028FUNC<unknown>DEFAULTSHN_UNDEF
    strlen.dynsym0x8ff896FUNC<unknown>DEFAULTSHN_UNDEF
    strstr.dynsym0x8efc248FUNC<unknown>DEFAULTSHN_UNDEF
    time.dynsym0x8fa444FUNC<unknown>DEFAULTSHN_UNDEF
    unlink.dynsym0x8f2c44FUNC<unknown>DEFAULTSHN_UNDEF
    usleep.dynsym0x8de876FUNC<unknown>DEFAULTSHN_UNDEF
    write.dynsym0x8eb444FUNC<unknown>DEFAULTSHN_UNDEF

    Network Behavior

    Network Port Distribution

    TCP Packets

    TimestampSource PortDest PortSource IPDest IP
    Oct 27, 2024 09:13:49.151513100 CET3481053192.168.2.138.8.8.8
    Oct 27, 2024 09:13:49.157255888 CET53348108.8.8.8192.168.2.13
    Oct 27, 2024 09:13:49.157331944 CET3481053192.168.2.138.8.8.8
    Oct 27, 2024 09:13:49.157367945 CET3481053192.168.2.138.8.8.8
    Oct 27, 2024 09:13:49.157393932 CET3481053192.168.2.138.8.8.8
    Oct 27, 2024 09:13:49.163820982 CET53348108.8.8.8192.168.2.13
    Oct 27, 2024 09:13:49.163866997 CET53348108.8.8.8192.168.2.13
    Oct 27, 2024 09:13:49.745563030 CET53348108.8.8.8192.168.2.13
    Oct 27, 2024 09:13:49.745635033 CET3481053192.168.2.138.8.8.8
    Oct 27, 2024 09:13:49.746738911 CET53348108.8.8.8192.168.2.13
    Oct 27, 2024 09:13:49.746798992 CET3481053192.168.2.138.8.8.8
    Oct 27, 2024 09:13:51.746202946 CET53348108.8.8.8192.168.2.13
    Oct 27, 2024 09:13:51.746510029 CET3481053192.168.2.138.8.8.8
    Oct 27, 2024 09:13:51.752263069 CET53348108.8.8.8192.168.2.13

    DNS Queries

    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Oct 27, 2024 09:13:49.157367945 CET192.168.2.138.8.8.80x505dStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Oct 27, 2024 09:13:49.157393932 CET192.168.2.138.8.8.80xc4f2Standard query (0)daisy.ubuntu.com28IN (0x0001)false

    DNS Answers

    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Oct 27, 2024 09:13:49.746738911 CET8.8.8.8192.168.2.130x505dNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
    Oct 27, 2024 09:13:49.746738911 CET8.8.8.8192.168.2.130x505dNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

    System Behavior

    General

    Start time (UTC):08:11:04
    Start date (UTC):27/10/2024
    Path:/tmp/arm5.elf
    Arguments:/tmp/arm5.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

    Chronological Activities