Joe Sandbox Cloud Basic Analysis Report

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Linux Analysis Report
arm6.elf

Overview

General Information

Sample name:arm6.elf
Analysis ID:1580050
MD5:d87c7fd0baebfcca13e289c449692668
SHA1:39d305d86cfbd8f06b93763a9571bbda53582583
SHA256:06ec420a5eb026f369dd3e72781f1e5fa88a519e967599a1f4543bd3af238949
Tags:elfuser-abuse_ch
Infos:

Detection

Score:56
Range:0 - 100
Whitelisted:false

Signatures

Antivirus / Scanner detection for submitted sample
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:1580050
Start date and time:2024-12-23 19:51:09 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 27s
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:mal56.linELF@0/0@2/0

Warnings

  • VT rate limit hit for: arm6.elf

Runtime Messages

Command:/tmp/arm6.elf
PID:5491
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: 5491, Parent: 5415, 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
Antivirus / Scanner detection for submitted sample
Source: arm6.elfAvira: detected
Multi AV Scanner detection for submitted file
Source: arm6.elfReversingLabs: Detection: 47%
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
Source: Initial sampleString containing 'busybox' found: //proc/self/exe/bin/busybox/proc/%d/etc/systmp.d/proc//exe%s/lib/systemd/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-server/usr/lib/openssh/sftp-server/sys/system/dvr/main/usr/mnt/mtd/org/userfs/home/process/net_process/var/tmp/sonia/usr/sbin/usr/bin/mnt/gm/bin/var/Sofia/usr/sbin/sshd/usr/sbin/ntpd/usr/sbin/cupsd/usr/lib/apt/methods/http/usr/sbin/crond/usr/sbin/rsyslogd/usr/sbin/inetd/usr/sbin/dnsmasq/usr/bin/DVRServer/usr/bin/DVRShell/usr/bin/DVRControl/usr/bin/DVRRemoteAgent/usr/bin/DVRNetService
Source: ELF static info symbol of initial sample.symtab present: no
Source: classification engineClassification label: mal56.linELF@0/0@2/0
Source: /tmp/arm6.elf (PID: 5491)Queries kernel information via 'uname': Jump to behavior
Source: arm6.elf, 5491.1.0000557003b8d000.0000557003cbb000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: arm6.elf, 5491.1.00007ffe74240000.00007ffe74261000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: arm6.elf, 5491.1.0000557003b8d000.0000557003cbb000.rw-.sdmpBinary or memory string: pU!/etc/qemu-binfmt/arm
Source: arm6.elf, 5491.1.00007ffe74240000.00007ffe74261000.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, 5491.1.00007ffe74240000.00007ffe74261000.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

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
arm6.elf47%ReversingLabsLinux.Trojan.Mirai
arm6.elf100%AviraLINUX/Mirai.bonb

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.comjackmyi686.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.25
    jackmyarmv5.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.24
    jackmysparc.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.25
    jackmyarmv6.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.25
    jackmymips64.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.24
    jackmymipsel.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.25
    jackmyi586.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.25
    arm5.nn.elfGet hashmaliciousOkiruBrowse
    • 162.213.35.25
    arm.nn-20241223-1416.elfGet hashmaliciousOkiruBrowse
    • 162.213.35.24
    arm5.nn-20241223-1416.elfGet hashmaliciousOkiruBrowse
    • 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):6.146211485117551
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:arm6.elf
    File size:63'476 bytes
    MD5:d87c7fd0baebfcca13e289c449692668
    SHA1:39d305d86cfbd8f06b93763a9571bbda53582583
    SHA256:06ec420a5eb026f369dd3e72781f1e5fa88a519e967599a1f4543bd3af238949
    SHA512:aeb8d53249f4796fd8095a9d4892c64588f10b149afbf9cd19d1c793d27a8411bf93abb19427c9f6f008c519f2b71d2ec2716a4dce2e647fe4df8c794ac41b0a
    SSDEEP:1536:DgnNjeXcOh+YwbzPE+aTNQq2M2ijP34Wu5NYv:Qyd+zPE+alP34WuLg
    TLSH:AE53195AF9C15B11D9D1027AFE1E114E3313176CE3EEB3129E10AF60778A96B0E3B915
    File Content Preview:.ELF..............(.....T...4...<.......4. ...(.....................................................(...............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:63036
    Section Header Size:40
    Number of Section Headers:11
    Header String Table Index:10

    Sections

    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .initPROGBITS0x80940x940x100x00x6AX004
    .textPROGBITS0x80b00xb00xd7e00x00x6AX0016
    .finiPROGBITS0x158900xd8900x100x00x6AX004
    .rodataPROGBITS0x158a00xd8a00x1a200x00x2A008
    .init_arrayINIT_ARRAY0x1f2c40xf2c80x40x00x3WA004
    .fini_arrayFINI_ARRAY0x1f2c80xf2cc0x40x00x3WA004
    .gotPROGBITS0x1f2d00xf2d40x740x40x3WA004
    .dataPROGBITS0x1f3440xf3480x2a40x00x3WA004
    .bssNOBITS0x1f5e80xf5ec0x26980x00x3WA008
    .shstrtabSTRTAB0x00xf5ec0x4d0x00x0001

    Program Segments

    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    LOAD0x00x80000x80000xf2c00xf2c06.17080x5R E0x8000.init .text .fini .rodata
    LOAD0xf2c40x1f2c40x1f2c00x3280xa9bc3.79590x6RW 0x8000.init_array .fini_array .got .data .bss
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Network Behavior

    Network Port Distribution

    UDP Packets

    TimestampSource PortDest PortSource IPDest IP
    Dec 23, 2024 19:52:02.156301022 CET5625753192.168.2.141.1.1.1
    Dec 23, 2024 19:52:02.156301975 CET4219153192.168.2.141.1.1.1
    Dec 23, 2024 19:52:02.385941982 CET53421911.1.1.1192.168.2.14
    Dec 23, 2024 19:52:02.395683050 CET53562571.1.1.1192.168.2.14

    DNS Queries

    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Dec 23, 2024 19:52:02.156301022 CET192.168.2.141.1.1.10xbfccStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Dec 23, 2024 19:52:02.156301975 CET192.168.2.141.1.1.10x37e6Standard query (0)daisy.ubuntu.com28IN (0x0001)false

    DNS Answers

    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Dec 23, 2024 19:52:02.395683050 CET1.1.1.1192.168.2.140xbfccNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
    Dec 23, 2024 19:52:02.395683050 CET1.1.1.1192.168.2.140xbfccNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

    System Behavior

    General

    Start time (UTC):18:52:00
    Start date (UTC):23/12/2024
    Path:/tmp/arm6.elf
    Arguments:/tmp/arm6.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

    Chronological Activities