Joe Sandbox Cloud Basic Analysis Report

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Linux Analysis Report
kwari.arm5.elf

Overview

General Information

Sample name:kwari.arm5.elf
Analysis ID:1582537
MD5:3e4728ad90e48284d5a8d3824e868b00
SHA1:fec82956791b06e962a03bbb91f7b4d4f30ac263
SHA256:2e2043217989f3331f28f941cf7124549eaa4d85e6ae74a10398b8e6a76b5cad
Tags:user-elfdigest
Infos:

Detection

Score:48
Range:0 - 100
Whitelisted:false

Signatures

Multi AV Scanner detection for submitted file
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:1582537
Start date and time:2024-12-30 20:52:09 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 10m 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:kwari.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

  • VT rate limit hit for: kwari.arm5.elf

Runtime Messages

Command:/tmp/kwari.arm5.elf
PID:5486
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
  • kwari.arm5.elf (PID: 5486, Parent: 5413, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/kwari.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: kwari.arm5.elfReversingLabs: Detection: 57%
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: mal48.linELF@0/0@2/0
Source: /tmp/kwari.arm5.elf (PID: 5486)Queries kernel information via 'uname': Jump to behavior
Source: kwari.arm5.elf, 5486.1.00007ffc0de7d000.00007ffc0de9e000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/kwari.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/kwari.arm5.elf
Source: kwari.arm5.elf, 5486.1.000055e6ed29b000.000055e6ed3c9000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: kwari.arm5.elf, 5486.1.00007ffc0de7d000.00007ffc0de9e000.rw-.sdmpBinary or memory string: qemu: %s: %s
Source: kwari.arm5.elf, 5486.1.00007ffc0de7d000.00007ffc0de9e000.rw-.sdmpBinary or memory string: leqemu: %s: %s
Source: kwari.arm5.elf, 5486.1.000055e6ed29b000.000055e6ed3c9000.rw-.sdmpBinary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: kwari.arm5.elf, 5486.1.000055e6ed29b000.000055e6ed3c9000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: kwari.arm5.elf, 5486.1.00007ffc0de7d000.00007ffc0de9e000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: kwari.arm5.elf, 5486.1.000055e6ed29b000.000055e6ed3c9000.rw-.sdmpBinary or memory string: rg.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

Screenshots

Thumbnails

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


windows-stand

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
kwari.arm5.elf58%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
    		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.comkwari.arm6.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    boatnet.arm6.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    boatnet.mips.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    boatnet.arm7.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    fenty.arm6.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    boatnet.arm6.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    boatnet.spc.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    boatnet.arm.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    boatnet.sh4.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    boatnet.ppc.elfGet hashmaliciousMiraiBrowse
    • 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):6.084019662102138
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:kwari.arm5.elf
    File size:51'392 bytes
    MD5:3e4728ad90e48284d5a8d3824e868b00
    SHA1:fec82956791b06e962a03bbb91f7b4d4f30ac263
    SHA256:2e2043217989f3331f28f941cf7124549eaa4d85e6ae74a10398b8e6a76b5cad
    SHA512:b8a86b85075bb03e59c3ccff9c4719964433c0d4af169ecd9275001451e4638dfbbbc3eb2194392773d1bb901856139c3ac0b12e4b82313e2b4eb5513320b01d
    SSDEEP:1536:RfinNXlMJZdy9imMnjkYm7JSWOCrTO+1gAD2ycCQ5KkzoEOSSSSSSSSSSSSSSSSc:RqnNXiJ09j2y7ezohSSSSSSSSSSSSSSs
    TLSH:E633F885BCD29A1AC6E0537AF96E809E331073E9C2DF7623CC140B1176C655F4EA3B96
    File Content Preview:.ELF...a..........(.........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:0x8ea8
    Flags:0x2
    ELF Header Size:52
    Program Header Offset:52
    Program Header Size:32
    Number of Program Headers:6
    Section Header Offset:50672
    Section Header Size:40
    Number of Section Headers:18
    Header String Table Index:17

    Sections

    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .interpPROGBITS0x80f40xf40x140x00x2A001
    .hashHASH0x81080x1080x22c0x40x2A304
    .dynsymDYNSYM0x83340x3340x4600x100x2A414
    .dynstrSTRTAB0x87940x7940x2340x00x2A001
    .rel.pltREL0x89c80x9c80x1880x80x2A374
    .initPROGBITS0x8b500xb500x180x00x6AX004
    .pltPROGBITS0x8b680xb680x2600x40x6AX004
    .textPROGBITS0x8dc80xdc80xad980x00x6AX004
    .finiPROGBITS0x13b600xbb600x140x00x6AX004
    .rodataPROGBITS0x13b740xbb740x8640x00x2A004
    .ctorsPROGBITS0x1c3dc0xc3dc0x80x00x3WA004
    .dtorsPROGBITS0x1c3e40xc3e40x80x00x3WA004
    .dynamicDYNAMIC0x1c3f00xc3f00x980x80x3WA404
    .gotPROGBITS0x1c4880xc4880xd00x40x3WA004
    .dataPROGBITS0x1c5580xc5580x240x00x3WA004
    .bssNOBITS0x1c57c0xc57c0x2fc0x00x3WA004
    .shstrtabSTRTAB0x00xc57c0x730x00x0001

    Program Segments

    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    PHDR0x340x80340x80340xc00xc02.26290x5R E0x4
    INTERP0xf40x80f40x80f40x140x143.68420x4R 0x1/lib/ld-uClibc.so.0.interp
    LOAD0x00x80000x80000xc3d80xc3d86.11840x5R E0x8000.interp .hash .dynsym .dynstr .rel.plt .init .plt .text .fini .rodata
    LOAD0xc3dc0x1c3dc0x1c3dc0x1a00x49c2.28190x6RW 0x8000.ctors .dtors .dynamic .got .data .bss
    DYNAMIC0xc3f00x1c3f00x1c3f00x980x981.89840x6RW 0x4.dynamic
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Dynamic Tags

    TypeMetaValueTag
    DT_NEEDEDsharedliblibc.so.00x1
    DT_INITvalue0x8b500xc
    DT_FINIvalue0x13b600xd
    DT_HASHvalue0x81080x4
    DT_STRTABvalue0x87940x5
    DT_SYMTABvalue0x83340x6
    DT_STRSZbytes5640xa
    DT_SYMENTbytes160xb
    DT_DEBUGvalue0x00x15
    DT_PLTGOTvalue0x1c4880x3
    DT_PLTRELSZbytes3920x2
    DT_PLTRELpltrelDT_REL0x14
    DT_JMPRELvalue0x89c80x17
    DT_NULLvalue0x00x0

    Symbols

    NameVersion Info NameVersion Info File NameSection NameValueSizeSymbol TypeSymbol BindSymbol VisibilityNdx
    .dynsym0x00NOTYPE<unknown>DEFAULTSHN_UNDEF
    __aeabi_idiv0.dynsym0x13b204FUNC<unknown>DEFAULT8
    __aeabi_ldiv0.dynsym0x13b204FUNC<unknown>DEFAULT8
    __aeabi_uidiv.dynsym0x138600FUNC<unknown>DEFAULT8
    __aeabi_uidivmod.dynsym0x1395824FUNC<unknown>DEFAULT8
    __bss_end__.dynsym0x1c8780NOTYPE<unknown>DEFAULTSHN_ABS
    __bss_start.dynsym0x1c57c0NOTYPE<unknown>DEFAULTSHN_ABS
    __bss_start__.dynsym0x1c57c0NOTYPE<unknown>DEFAULTSHN_ABS
    __data_start.dynsym0x1c5580NOTYPE<unknown>DEFAULT17
    __div0.dynsym0x13b204FUNC<unknown>DEFAULT8
    __end__.dynsym0x1c8780NOTYPE<unknown>DEFAULTSHN_ABS
    __errno_location.dynsym0x8d4432FUNC<unknown>DEFAULTSHN_UNDEF
    __modsi3.dynsym0x13a3c228FUNC<unknown>DEFAULT8
    __uClibc_main.dynsym0x8cfc488FUNC<unknown>DEFAULTSHN_UNDEF
    __udivsi3.dynsym0x13860248FUNC<unknown>DEFAULT8
    __umodsi3.dynsym0x13970204FUNC<unknown>DEFAULT8
    _bss_end__.dynsym0x1c8780NOTYPE<unknown>DEFAULTSHN_ABS
    _edata.dynsym0x1c57c0NOTYPE<unknown>DEFAULTSHN_ABS
    _end.dynsym0x1c8780NOTYPE<unknown>DEFAULTSHN_ABS
    _start.dynsym0x8ea880FUNC<unknown>DEFAULT8
    abort.dynsym0x8c54352FUNC<unknown>DEFAULTSHN_UNDEF
    accept.dynsym0x8c6044FUNC<unknown>DEFAULTSHN_UNDEF
    bind.dynsym0x8c9044FUNC<unknown>DEFAULTSHN_UNDEF
    calloc.dynsym0x8c6c88FUNC<unknown>DEFAULTSHN_UNDEF
    clock.dynsym0x8d6852FUNC<unknown>DEFAULTSHN_UNDEF
    close.dynsym0x8d9844FUNC<unknown>DEFAULTSHN_UNDEF
    closedir.dynsym0x8d80196FUNC<unknown>DEFAULTSHN_UNDEF
    connect.dynsym0x8ba044FUNC<unknown>DEFAULTSHN_UNDEF
    exit.dynsym0x8d50172FUNC<unknown>DEFAULTSHN_UNDEF
    fcntl.dynsym0x8d8c116FUNC<unknown>DEFAULTSHN_UNDEF
    fork.dynsym0x8cf044FUNC<unknown>DEFAULTSHN_UNDEF
    free.dynsym0x8da4288FUNC<unknown>DEFAULTSHN_UNDEF
    getpid.dynsym0x8bc444FUNC<unknown>DEFAULTSHN_UNDEF
    getppid.dynsym0x8d1444FUNC<unknown>DEFAULTSHN_UNDEF
    getsockname.dynsym0x8dbc44FUNC<unknown>DEFAULTSHN_UNDEF
    getsockopt.dynsym0x8d3848FUNC<unknown>DEFAULTSHN_UNDEF
    inet_addr.dynsym0x8c9c36FUNC<unknown>DEFAULTSHN_UNDEF
    ioctl.dynsym0x8b8880FUNC<unknown>DEFAULTSHN_UNDEF
    kill.dynsym0x8c8444FUNC<unknown>DEFAULTSHN_UNDEF
    listen.dynsym0x8ce444FUNC<unknown>DEFAULTSHN_UNDEF
    malloc.dynsym0x8bf4400FUNC<unknown>DEFAULTSHN_UNDEF
    memcpy.dynsym0x8bdc4FUNC<unknown>DEFAULTSHN_UNDEF
    memmove.dynsym0x8bb84FUNC<unknown>DEFAULTSHN_UNDEF
    memset.dynsym0x8d08156FUNC<unknown>DEFAULTSHN_UNDEF
    open.dynsym0x8d5c92FUNC<unknown>DEFAULTSHN_UNDEF
    opendir.dynsym0x8d2c264FUNC<unknown>DEFAULTSHN_UNDEF
    prctl.dynsym0x8bd048FUNC<unknown>DEFAULTSHN_UNDEF
    rand.dynsym0x04FUNC<unknown>DEFAULTSHN_UNDEF
    read.dynsym0x8cc044FUNC<unknown>DEFAULTSHN_UNDEF
    readdir.dynsym0x8c30224FUNC<unknown>DEFAULTSHN_UNDEF
    readlink.dynsym0x8be844FUNC<unknown>DEFAULTSHN_UNDEF
    realloc.dynsym0x8cd8312FUNC<unknown>DEFAULTSHN_UNDEF
    recv.dynsym0x8b9444FUNC<unknown>DEFAULTSHN_UNDEF
    recvfrom.dynsym0x8c0c52FUNC<unknown>DEFAULTSHN_UNDEF
    select.dynsym0x8c2448FUNC<unknown>DEFAULTSHN_UNDEF
    send.dynsym0x8c4844FUNC<unknown>DEFAULTSHN_UNDEF
    sendto.dynsym0x8ccc52FUNC<unknown>DEFAULTSHN_UNDEF
    setsid.dynsym0x8d7444FUNC<unknown>DEFAULTSHN_UNDEF
    setsockopt.dynsym0x8ca848FUNC<unknown>DEFAULTSHN_UNDEF
    sigaddset.dynsym0x8c3c48FUNC<unknown>DEFAULTSHN_UNDEF
    sigemptyset.dynsym0x8bac24FUNC<unknown>DEFAULTSHN_UNDEF
    signal.dynsym0x8cb4200FUNC<unknown>DEFAULTSHN_UNDEF
    sigprocmask.dynsym0x8db084FUNC<unknown>DEFAULTSHN_UNDEF
    sleep.dynsym0x8c00420FUNC<unknown>DEFAULTSHN_UNDEF
    socket.dynsym0x8c1844FUNC<unknown>DEFAULTSHN_UNDEF
    srand.dynsym0x0148FUNC<unknown>DEFAULTSHN_UNDEF
    strcpy.dynsym0x8b7c28FUNC<unknown>DEFAULTSHN_UNDEF
    sysconf.dynsym0x0944FUNC<unknown>DEFAULTSHN_UNDEF
    time.dynsym0x8d2044FUNC<unknown>DEFAULTSHN_UNDEF
    write.dynsym0x8c7844FUNC<unknown>DEFAULTSHN_UNDEF

    Network Behavior

    Network Port Distribution

    UDP Packets

    TimestampSource PortDest PortSource IPDest IP
    Dec 30, 2024 20:55:38.769603968 CET5921053192.168.2.148.8.8.8
    Dec 30, 2024 20:55:38.769670963 CET5078353192.168.2.148.8.8.8
    Dec 30, 2024 20:55:38.775861979 CET53507838.8.8.8192.168.2.14
    Dec 30, 2024 20:55:38.775883913 CET53592108.8.8.8192.168.2.14

    DNS Queries

    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Dec 30, 2024 20:55:38.769603968 CET192.168.2.148.8.8.80xf713Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Dec 30, 2024 20:55:38.769670963 CET192.168.2.148.8.8.80x4236Standard query (0)daisy.ubuntu.com28IN (0x0001)false

    DNS Answers

    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Dec 30, 2024 20:55:38.775883913 CET8.8.8.8192.168.2.140xf713No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
    Dec 30, 2024 20:55:38.775883913 CET8.8.8.8192.168.2.140xf713No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

    System Behavior

    General

    Start time (UTC):19:52:52
    Start date (UTC):30/12/2024
    Path:/tmp/kwari.arm5.elf
    Arguments:/tmp/kwari.arm5.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

    Chronological Activities