Joe Sandbox Cloud Basic Analysis Report
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Linux Analysis Report
tarm6.elf

Overview

General Information

Sample name:tarm6.elf
Analysis ID:1647993
MD5:68a6e1dd3c7da66ef5a8eea67330bcac
SHA1:73adf630db144261ce18ad6339dd469a4fcbff4c
SHA256:cfcbbd10c532a47ee1d483edc73cc5a334d83c49d1757c40e7c053620c09cf33
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100

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

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious

General Information

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1647993
Start date and time:2025-03-25 13:25:49 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 24s
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:tarm6.elf
Detection:MAL
Classification:mal48.linELF@0/0@2/0

Runtime Messages

Command:/tmp/tarm6.elf
PID:5532
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
  • tarm6.elf (PID: 5532, Parent: 5449, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/tarm6.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: tarm6.elfVirustotal: Detection: 20%Perma Link
Source: tarm6.elfReversingLabs: Detection: 33%
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: mal48.linELF@0/0@2/0
Source: /tmp/tarm6.elf (PID: 5532)Queries kernel information via 'uname': Jump to behavior
Source: tarm6.elf, 5532.1.0000564efc23a000.0000564efc368000.rw-.sdmpBinary or memory string: NV!/etc/qemu-binfmt/arm
Source: tarm6.elf, 5532.1.0000564efc23a000.0000564efc368000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: tarm6.elf, 5532.1.00007ffc580b7000.00007ffc580d8000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: tarm6.elf, 5532.1.00007ffc580b7000.00007ffc580d8000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/tarm6.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/tarm6.elf
Source: tarm6.elf, 5532.1.00007ffc580b7000.00007ffc580d8000.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: 1647993 Sample: tarm6.elf Startdate: 25/03/2025 Architecture: LINUX Score: 48 8 daisy.ubuntu.com 2->8 10 Multi AV Scanner detection for submitted file 2->10 6 tarm6.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
tarm6.elf20%VirustotalBrowse
tarm6.elf33%ReversingLabsLinux.Backdoor.Mirai

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
162.213.35.25
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.comi.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    aarch64.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    sh4.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    arm6.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    mips.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    arm7.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    arm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    mips.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    arm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    arm7.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, EABI4 version 1 (SYSV), statically linked, stripped
    Entropy (8bit):6.0693279534871944
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:tarm6.elf
    File size:67'152 bytes
    MD5:68a6e1dd3c7da66ef5a8eea67330bcac
    SHA1:73adf630db144261ce18ad6339dd469a4fcbff4c
    SHA256:cfcbbd10c532a47ee1d483edc73cc5a334d83c49d1757c40e7c053620c09cf33
    SHA512:30bdc9934415ea98086a10d09819376f0481a7cda6cb17c760fa3c92f65365c977248a452e98bf4201af97e78a56bd0edecc56279f974f824702e4d0c4633b7f
    SSDEEP:1536:Q0nU5hT81miU6o6AMhAxxdajagkQpM6iNGVuot5cYXP:80QXx6AMyxxdajKG4ot6cP
    TLSH:3A632A5AB8819B11D5C112BAFA1E128E3313177CE3DE73129E246F2577CB96B0E3B905
    File Content Preview:.ELF..............(.....T...4...p.......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:66672
    Section Header Size:40
    Number of Section Headers:12
    Header String Table Index:11

    Sections

    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .initPROGBITS0x80940x940x100x00x6AX004
    .textPROGBITS0x80b00xb00xeccc0x00x6AX0016
    .finiPROGBITS0x16d7c0xed7c0x100x00x6AX004
    .rodataPROGBITS0x16d900xed900x13080x00x2A008
    .init_arrayINIT_ARRAY0x2009c0x100a00x40x00x3WA004
    .fini_arrayFINI_ARRAY0x200a00x100a40x40x00x3WA004
    .gotPROGBITS0x200a80x100ac0x740x40x3WA004
    .dataPROGBITS0x2011c0x101200x2e00x00x3WA004
    .bssNOBITS0x203fc0x104000x65000x00x3WA004
    .ARM.attributesARM_ATTRIBUTES0x00x104000x100x00x0001
    .shstrtabSTRTAB0x00x104100x5d0x00x0001

    Program Segments

    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    LOAD0x00x80000x80000x100980x100986.08920x5R E0x8000.init .text .fini .rodata
    LOAD0x1009c0x2009c0x200980x3640xe8604.45130x6RW 0x8000.init_array .fini_array .got .data .bss
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Network Behavior

    Download Network PCAP: filtered – full

    TimestampSource PortDest PortSource IPDest IP
    Mar 25, 2025 13:26:36.144303083 CET3293853192.168.2.151.1.1.1
    Mar 25, 2025 13:26:36.144352913 CET3733553192.168.2.151.1.1.1
    Mar 25, 2025 13:26:36.244345903 CET53329381.1.1.1192.168.2.15
    Mar 25, 2025 13:26:36.244371891 CET53373351.1.1.1192.168.2.15

    DNS Queries

    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Mar 25, 2025 13:26:36.144303083 CET192.168.2.151.1.1.10x95afStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Mar 25, 2025 13:26:36.144352913 CET192.168.2.151.1.1.10x8303Standard query (0)daisy.ubuntu.com28IN (0x0001)false

    DNS Answers

    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Mar 25, 2025 13:26:36.244345903 CET1.1.1.1192.168.2.150x95afNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
    Mar 25, 2025 13:26:36.244345903 CET1.1.1.1192.168.2.150x95afNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

    System Behavior

    General

    Start time (UTC):12:26:33
    Start date (UTC):25/03/2025
    Path:/tmp/tarm6.elf
    Arguments:/tmp/tarm6.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

    File Activities

    Process Activities

    System Activities