Joe Sandbox Cloud Basic Analysis Report
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Linux Analysis Report
arm6.elf

Overview

General Information

Sample name:arm6.elf
Analysis ID:1641003
MD5:68c4f9bff8a637ec37dbf0cf0f99e8b7
SHA1:a533c9e4515963186e2f767f17f8743dedf0a262
SHA256:c16963377890d8d75df1c30de885eca09a7e3c2c898facfb547bed6bc934e4fd
Tags:elfuser-abuse_ch
Infos:

Detection

Score:56
Range:0 - 100

Signatures

Antivirus / Scanner detection for submitted sample
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

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious

General Information

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1641003
Start date and time:2025-03-18 01:20:58 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 23s
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

Runtime Messages

Command:/tmp/arm6.elf
PID:5510
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: 5510, Parent: 5431, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm6.elf
  • cleanup

Yara Signatures

⊘No yara matches

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

  • • AV Detection
  • • Networking
  • • System Summary
  • • Malware Analysis System Evasion

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: arm6.elfAvira: detected
Source: arm6.elfReversingLabs: Detection: 66%
Source: arm6.elfVirustotal: Detection: 58%Perma Link
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: mal56.linELF@0/0@2/0
Source: /tmp/arm6.elf (PID: 5510)Queries kernel information via 'uname': Jump to behavior
Source: arm6.elf, 5510.1.0000559167e42000.0000559167f70000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: arm6.elf, 5510.1.0000559167e42000.0000559167f70000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: arm6.elf, 5510.1.00007ffedbf67000.00007ffedbf88000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: arm6.elf, 5510.1.00007ffedbf67000.00007ffedbf88000.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, 5510.1.00007ffedbf67000.00007ffedbf88000.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

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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Number of created Files
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1641003 Sample: arm6.elf Startdate: 18/03/2025 Architecture: LINUX Score: 56 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 6 arm6.elf 2->6         started        signatures3 process4

Screenshots

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Thumbnails

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windows-stand

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
arm6.elf67%ReversingLabsLinux.Trojan.Mirai
arm6.elf58%VirustotalBrowse
arm6.elf100%AviraEXP/ELF.Mirai.Bootnet.o

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.comarm7.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    sshd.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    mips.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    arm.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    arm7.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    hgfs.ppc.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    hgfs.arm.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    hgfs.x86.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    arm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    rebirth.x86.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):5.997997853738705
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:arm6.elf
    File size:75'056 bytes
    MD5:68c4f9bff8a637ec37dbf0cf0f99e8b7
    SHA1:a533c9e4515963186e2f767f17f8743dedf0a262
    SHA256:c16963377890d8d75df1c30de885eca09a7e3c2c898facfb547bed6bc934e4fd
    SHA512:5da2c5f17f1b2b1e4ad6d48466e1dbfb764aa98e40ef3f93e9a1c2f0edaab9fe80b0d1790700ec54fb0707745367aede09ea540ff0272e20ac41d60153f88d08
    SSDEEP:1536:CNnc+HiWFmmhqbnI+l/s/Hw8oXHK+ZvNbSJaOZz1IhiJ4oe/e7d42+:2HiWFhonI+qeXZlgp4oe/eZ
    TLSH:3A731A46B8818A16C5D813FBFD2E018D332667F8E2DF7212DD105F6477CA92B0E67A52
    File Content Preview:.ELF..............(.....T...4...P#......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:74576
    Section Header Size:40
    Number of Section Headers:12
    Header String Table Index:11

    Sections

    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .initPROGBITS0x80940x940x100x00x6AX004
    .textPROGBITS0x80b00xb00x10aa00x00x6AX0016
    .finiPROGBITS0x18b500x10b500x100x00x6AX004
    .rodataPROGBITS0x18b600x10b600xd600x00x2A004
    .init_arrayINIT_ARRAY0x220040x120080x40x00x3WA004
    .fini_arrayFINI_ARRAY0x220080x1200c0x40x00x3WA004
    .gotPROGBITS0x220100x120140x740x40x3WA004
    .dataPROGBITS0x220840x120880x2580x00x3WA004
    .bssNOBITS0x222dc0x122e00x25e80x00x3WA004
    .ARM.attributesARM_ATTRIBUTES0x00x122e00x100x00x0001
    .shstrtabSTRTAB0x00x122f00x5d0x00x0001

    Program Segments

    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    LOAD0x00x80000x80000x118c00x118c06.10370x5R E0x8000.init .text .fini .rodata
    LOAD0x120040x220040x220000x2dc0xa8c03.71330x6RW 0x8000.init_array .fini_array .got .data .bss
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Network Behavior

    Download Network PCAP: filtered – full

    TimestampSource PortDest PortSource IPDest IP
    Mar 18, 2025 01:21:43.550575972 CET4806053192.168.2.151.1.1.1
    Mar 18, 2025 01:21:43.550631046 CET4863453192.168.2.151.1.1.1
    Mar 18, 2025 01:21:43.558284998 CET53480601.1.1.1192.168.2.15
    Mar 18, 2025 01:21:43.558629990 CET53486341.1.1.1192.168.2.15

    DNS Queries

    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Mar 18, 2025 01:21:43.550575972 CET192.168.2.151.1.1.10x7aeeStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Mar 18, 2025 01:21:43.550631046 CET192.168.2.151.1.1.10x19dStandard query (0)daisy.ubuntu.com28IN (0x0001)false

    DNS Answers

    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Mar 18, 2025 01:21:43.558284998 CET1.1.1.1192.168.2.150x7aeeNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
    Mar 18, 2025 01:21:43.558284998 CET1.1.1.1192.168.2.150x7aeeNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

    System Behavior

    General

    Start time (UTC):00:21:42
    Start date (UTC):18/03/2025
    Path:/tmp/arm6.elf
    Arguments:/tmp/arm6.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

    File Activities

    Process Activities

    System Activities