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Linux Analysis Report
arm6.elf

Overview

General Information

Sample name:arm6.elf
Analysis ID:1650431
MD5:64fcd122c68290ec71e65b85da6b1d08
SHA1:a21769d8fd312a76768149a489aced173686a04e
SHA256:8fb160c944e97194b74d02612236fa4925b63b80658cd0a3cff1e24f618eebbf
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
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1650431
Start date and time:2025-03-27 17:58:28 +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
Command:/tmp/arm6.elf
PID:5528
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
  • system is lnxubuntu20
  • arm6.elf (PID: 5528, Parent: 5445, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm6.elf
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: arm6.elfReversingLabs: Detection: 22%
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/arm6.elf (PID: 5528)Queries kernel information via 'uname': Jump to behavior
Source: arm6.elf, 5528.1.000055a8217d7000.000055a821905000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: arm6.elf, 5528.1.000055a8217d7000.000055a821905000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: arm6.elf, 5528.1.00007ffd4351d000.00007ffd4353e000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: arm6.elf, 5528.1.00007ffd4351d000.00007ffd4353e000.rw-.sdmpBinary or memory string: 5o_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, 5528.1.00007ffd4351d000.00007ffd4353e000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
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
No configs have been found
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Number of created Files
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1650431 Sample: arm6.elf Startdate: 27/03/2025 Architecture: LINUX Score: 48 8 daisy.ubuntu.com 2->8 10 Multi AV Scanner detection for submitted file 2->10 6 arm6.elf 2->6         started        signatures3 process4
SourceDetectionScannerLabelLink
arm6.elf22%ReversingLabsLinux.Backdoor.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

NameIPActiveMaliciousAntivirus DetectionReputation
daisy.ubuntu.com
162.213.35.25
truefalse
    high
    No contacted IP infos
    No context
    MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
    daisy.ubuntu.comSecuriteInfo.com.Linux.Mirai.4306.30063.19032.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    SecuriteInfo.com.Linux.Mirai.4514.4138.24817.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    SecuriteInfo.com.Linux.Mirai.4306.20497.23930.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    SecuriteInfo.com.Linux.Mirai.4306.5284.10688.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    SecuriteInfo.com.Linux.Mirai.2522.5402.17083.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    k03ldc.arm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    k03ldc.arm6.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    tftp.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    i.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    i.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    No context
    No context
    No context
    No created / dropped files found
    File type:ELF 32-bit LSB executable, ARM, EABI4 version 1 (SYSV), statically linked, stripped
    Entropy (8bit):6.014340387488201
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:arm6.elf
    File size:58'780 bytes
    MD5:64fcd122c68290ec71e65b85da6b1d08
    SHA1:a21769d8fd312a76768149a489aced173686a04e
    SHA256:8fb160c944e97194b74d02612236fa4925b63b80658cd0a3cff1e24f618eebbf
    SHA512:079decc64d9ea60d1c6fb3770060a091c1ccf71b2c9d4561bf5afaf7a63e5b44446eab1ab372142ead5374db644484f7c4fb2fdf17e9f29bf73dc3c3675a9dba
    SSDEEP:768:Zwgn0QHiT4hqnjn/7ej/OyLrmXUq/LoD8NWEQJWvxFPxfVmruxt5MIWsigwSO1vc:igngeTPmX5LgG1xjQIM4ifSiv9qHV
    TLSH:B9430847BD92DA51D9D122B8BA2E614D331313A8E3EF76134D246F7477878270F3A906
    File Content Preview:.ELF..............(.....T...4...........4. ...(.....................D...D...........................H...............Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../.H.............-.@0....S

    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:58300
    Section Header Size:40
    Number of Section Headers:12
    Header String Table Index:11
    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .initPROGBITS0x80940x940x100x00x6AX004
    .textPROGBITS0x80b00xb00xcf2c0x00x6AX0016
    .finiPROGBITS0x14fdc0xcfdc0x100x00x6AX004
    .rodataPROGBITS0x14fec0xcfec0xc580x00x2A004
    .init_arrayINIT_ARRAY0x1e0040xe0080x40x00x3WA004
    .fini_arrayFINI_ARRAY0x1e0080xe00c0x40x00x3WA004
    .gotPROGBITS0x1e0100xe0140x740x40x3WA004
    .dataPROGBITS0x1e0840xe0880x2c40x00x3WA004
    .bssNOBITS0x1e3480xe34c0x369c0x00x3WA004
    .ARM.attributesARM_ATTRIBUTES0x00xe34c0x100x00x0001
    .shstrtabSTRTAB0x00xe35c0x5d0x00x0001
    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    LOAD0x00x80000x80000xdc440xdc446.09650x5R E0x8000.init .text .fini .rodata
    LOAD0xe0040x1e0040x1e0000x3480xb9e04.21700x6RW 0x8000.init_array .fini_array .got .data .bss
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Download Network PCAP: filteredfull

    TimestampSource PortDest PortSource IPDest IP
    Mar 27, 2025 17:59:22.036952972 CET4045853192.168.2.151.1.1.1
    Mar 27, 2025 17:59:22.036952972 CET5350953192.168.2.151.1.1.1
    Mar 27, 2025 17:59:22.122164011 CET53535091.1.1.1192.168.2.15
    Mar 27, 2025 17:59:22.122185946 CET53404581.1.1.1192.168.2.15
    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Mar 27, 2025 17:59:22.036952972 CET192.168.2.151.1.1.10xd7ebStandard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Mar 27, 2025 17:59:22.036952972 CET192.168.2.151.1.1.10x2d87Standard query (0)daisy.ubuntu.com28IN (0x0001)false
    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Mar 27, 2025 17:59:22.122185946 CET1.1.1.1192.168.2.150xd7ebNo error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
    Mar 27, 2025 17:59:22.122185946 CET1.1.1.1192.168.2.150xd7ebNo error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

    System Behavior

    Start time (UTC):16:59:20
    Start date (UTC):27/03/2025
    Path:/tmp/arm6.elf
    Arguments:/tmp/arm6.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1