Joe Sandbox Cloud Basic Analysis Report

Loading Joe Sandbox Report ...

Edit tour

Linux Analysis Report
arm6.elf

Overview

General Information

Sample name:arm6.elf
Analysis ID:1589261
MD5:a167173ea973d452ba2c2c0a48dabb58
SHA1:abd972e17233b5ba36e5183f7f11bbf25824aa90
SHA256:861fe697bca9d755c6148b63b8de64d1cbb54930b0764e584a82e4a43bd242d9
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:42.0.0 Malachite
Analysis ID:1589261
Start date and time:2025-01-12 00:14:02 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 30s
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:mal48.linELF@0/0@2/0

Runtime Messages

Command:/tmp/arm6.elf
PID:5436
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: 5436, Parent: 5357, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm6.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: arm6.elfVirustotal: Detection: 28%Perma Link
Source: arm6.elfReversingLabs: Detection: 34%
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: Initial sampleString containing 'busybox' found: /bin/busybox ntpd
Source: Initial sampleString containing 'busybox' found: (deleted)/proc/self/exe/proc//exe/procPPid: /proc/%d/cmdline-bash-sh/bin/sh/proc/%s/status/. /sbin/procd/sbin/klogdsleep 1/bin/ExHttpd/bin/busybox ntpd
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal48.linELF@0/0@2/0
Source: /tmp/arm6.elf (PID: 5436)Queries kernel information via 'uname': Jump to behavior
Source: arm6.elf, 5436.1.0000562e94747000.0000562e94875000.rw-.sdmpBinary or memory string: .V!/etc/qemu-binfmt/arm
Source: arm6.elf, 5436.1.0000562e94747000.0000562e94875000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: arm6.elf, 5436.1.00007ffdad3b7000.00007ffdad3d8000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: arm6.elf, 5436.1.00007ffdad3b7000.00007ffdad3d8000.rw-.sdmpBinary or memory string: x86_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, 5436.1.00007ffdad3b7000.00007ffdad3d8000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

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
arm6.elf29%VirustotalBrowse
arm6.elf34%ReversingLabsLinux.Backdoor.Mirai

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Contacted Domains

NameIPActiveMaliciousAntivirus DetectionReputation
daisy.ubuntu.com
162.213.35.25
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.comcamp.arm6.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    2.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    x86_64.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    mips.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    i686.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    ssx.elfGet hashmaliciousGafgytBrowse
    • 162.213.35.24
    sss.elfGet hashmaliciousGafgytBrowse
    • 162.213.35.24
    sst.elfGet hashmaliciousGafgytBrowse
    • 162.213.35.25
    ssb.elfGet hashmaliciousGafgytBrowse
    • 162.213.35.25

    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):6.083723727299269
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:arm6.elf
    File size:71'632 bytes
    MD5:a167173ea973d452ba2c2c0a48dabb58
    SHA1:abd972e17233b5ba36e5183f7f11bbf25824aa90
    SHA256:861fe697bca9d755c6148b63b8de64d1cbb54930b0764e584a82e4a43bd242d9
    SHA512:8389c438b381b7c5ae9ea1c26e7f94570f03f759066df3e64010e6704a1af2ec94059e923e5d91374db7853580f894a2804a67f275f6f0a1dc1c3233e2c2d38e
    SSDEEP:1536:rAnMQpKhIobD3cHL2WTaaEjWmiQTMvi7FVcf5RYVM:Qscr2WTaakHFVcfzgM
    TLSH:B9631756BD819B21D5C512BAFA1E128E3323177CE3DE73129E245F21738B96B0E3B905
    File Content Preview:.ELF..............(.....T...4...........4. ...(.....................................................d...............Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.|.............-.@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:71152
    Section Header Size:40
    Number of Section Headers:12
    Header String Table Index:11

    Sections

    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .initPROGBITS0x80940x940x100x00x6AX004
    .textPROGBITS0x80b00xb00xfa100x00x6AX0016
    .finiPROGBITS0x17ac00xfac00x100x00x6AX004
    .rodataPROGBITS0x17ad00xfad00x17480x00x2A008
    .init_arrayINIT_ARRAY0x2121c0x112200x40x00x3WA004
    .fini_arrayFINI_ARRAY0x212200x112240x40x00x3WA004
    .gotPROGBITS0x212280x1122c0x740x40x3WA004
    .dataPROGBITS0x2129c0x112a00x2e00x00x3WA004
    .bssNOBITS0x2157c0x115800x64b00x00x3WA004
    .ARM.attributesARM_ATTRIBUTES0x00x115800x100x00x0001
    .shstrtabSTRTAB0x00x115900x5d0x00x0001

    Program Segments

    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    LOAD0x00x80000x80000x112180x112186.10180x5R E0x8000.init .text .fini .rodata
    LOAD0x1121c0x2121c0x212180x3640xe8104.54060x6RW 0x8000.init_array .fini_array .got .data .bss
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Network Behavior

    Network Port Distribution

    UDP Packets

    TimestampSource PortDest PortSource IPDest IP
    Jan 12, 2025 00:14:49.479547024 CET4609053192.168.2.131.1.1.1
    Jan 12, 2025 00:14:49.479617119 CET5141053192.168.2.131.1.1.1
    Jan 12, 2025 00:14:49.486921072 CET53514101.1.1.1192.168.2.13
    Jan 12, 2025 00:14:49.487122059 CET53460901.1.1.1192.168.2.13

    DNS Queries

    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Jan 12, 2025 00:14:49.479547024 CET192.168.2.131.1.1.10xfa70Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Jan 12, 2025 00:14:49.479617119 CET192.168.2.131.1.1.10x75fdStandard query (0)daisy.ubuntu.com28IN (0x0001)false

    DNS Answers

    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Jan 12, 2025 00:14:49.487122059 CET1.1.1.1192.168.2.130xfa70No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
    Jan 12, 2025 00:14:49.487122059 CET1.1.1.1192.168.2.130xfa70No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

    System Behavior

    General

    Start time (UTC):23:14:47
    Start date (UTC):11/01/2025
    Path:/tmp/arm6.elf
    Arguments:/tmp/arm6.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

    Chronological Activities