Joe Sandbox Cloud Basic Analysis Report

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Linux Analysis Report
nsharm6.elf

Overview

General Information

Sample name:nsharm6.elf
Analysis ID:1542851
MD5:d03056ba611ea613de51135e7aab1d31
SHA1:a9c1af061b570a2627864005a30c01c172bc55da
SHA256:3aab7e9ba65aafbeeb5663ab2ede3c701e07db6b3c42711707266d580c71d76e
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100
Whitelisted:false

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

General Information

Joe Sandbox version:41.0.0 Charoite
Analysis ID:1542851
Start date and time:2024-10-26 19:06:25 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 16s
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:nsharm6.elf
Detection:MAL
Classification:mal48.linELF@0/0@2/0

Warnings

  • VT rate limit hit for: nsharm6.elf

Runtime Messages

Command:/tmp/nsharm6.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
  • nsharm6.elf (PID: 5491, Parent: 5414, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/nsharm6.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: nsharm6.elfReversingLabs: Detection: 18%
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/nsharm6.elf (PID: 5491)Queries kernel information via 'uname': Jump to behavior
Source: nsharm6.elf, 5491.1.0000558677567000.0000558677695000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: nsharm6.elf, 5491.1.00007ffeb74b3000.00007ffeb74d4000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/nsharm6.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/nsharm6.elf
Source: nsharm6.elf, 5491.1.0000558677567000.0000558677695000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: nsharm6.elf, 5491.1.00007ffeb74b3000.00007ffeb74d4000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: nsharm6.elf, 5491.1.00007ffeb74b3000.00007ffeb74d4000.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
nsharm6.elf18%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
162.213.35.24
truefalse
    		unknown

    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.comharm4.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    .i.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    arm.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    c0r0n4x.arm6.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    c0r0n4x.x86.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    c0r0n4x.ppc.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    c0r0n4x.arm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    xi.arm6.elfGet hashmaliciousMirai, MoobotBrowse
    • 162.213.35.24
    A0Cr6LQ52c.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    Y48ThN7tMs.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):6.140361238691303
    TrID:
    • ELF Executable and Linkable format (generic) (4004/1) 100.00%
    File name:nsharm6.elf
    File size:84'840 bytes
    MD5:d03056ba611ea613de51135e7aab1d31
    SHA1:a9c1af061b570a2627864005a30c01c172bc55da
    SHA256:3aab7e9ba65aafbeeb5663ab2ede3c701e07db6b3c42711707266d580c71d76e
    SHA512:a0f5366a36ccd73f83584d831c1f3819bb949aa906f2ed6ee40ebcd16d1f5b07c6e9797cc3fca64bde831afafb95d56ab5631d2d48a85795b72490f1f5343495
    SSDEEP:1536:ccnpkP+J7v5Vsy0HGdo+jcAhoEnaiX9ubaAMaiLC/gjGZq71b5VYz:r7OGdo+jcYoEnaiHTC/gjGZqBbTA
    TLSH:04832956B8819B21D5D512BAFE1E118E3313177CE3DE72129D20AF34778B96B0E7B806
    File Content Preview:.ELF..............(.....T...4....I......4. ...(......................F...F...............F...F...F......8...........Q.td..................................-...L..................@-.,@...0....S..... 0....S.........../..0...0...@..../..I.......F....-.@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:84360
    Section Header Size:40
    Number of Section Headers:12
    Header String Table Index:11

    Sections

    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .initPROGBITS0x80940x940x100x00x6AX004
    .textPROGBITS0x80b00xb00x12e5c0x00x6AX0016
    .finiPROGBITS0x1af0c0x12f0c0x100x00x6AX004
    .rodataPROGBITS0x1af200x12f200x16ec0x00x2A008
    .init_arrayINIT_ARRAY0x246100x146140x40x00x3WA004
    .fini_arrayFINI_ARRAY0x246140x146180x40x00x3WA004
    .gotPROGBITS0x2461c0x146200x780x40x3WA004
    .dataPROGBITS0x246940x146980x2800x00x3WA004
    .bssNOBITS0x249140x149180x54340x00x3WA004
    .ARM.attributesARM_ATTRIBUTES0x00x149180x100x00x0001
    .shstrtabSTRTAB0x00x149280x5d0x00x0001

    Program Segments

    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    LOAD0x00x80000x80000x1460c0x1460c6.15870x5R E0x8000.init .text .fini .rodata
    LOAD0x146100x246100x2460c0x3080xd7383.84800x6RW 0x8000.init_array .fini_array .got .data .bss
    GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

    Network Behavior

    Network Port Distribution

    UDP Packets

    TimestampSource PortDest PortSource IPDest IP
    Oct 26, 2024 19:07:06.903235912 CEST4172953192.168.2.141.1.1.1
    Oct 26, 2024 19:07:06.903235912 CEST5467953192.168.2.141.1.1.1
    Oct 26, 2024 19:07:06.910907030 CEST53546791.1.1.1192.168.2.14
    Oct 26, 2024 19:07:06.926278114 CEST53417291.1.1.1192.168.2.14

    DNS Queries

    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Oct 26, 2024 19:07:06.903235912 CEST192.168.2.141.1.1.10x8b46Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Oct 26, 2024 19:07:06.903235912 CEST192.168.2.141.1.1.10xe0dStandard query (0)daisy.ubuntu.com28IN (0x0001)false

    DNS Answers

    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Oct 26, 2024 19:07:06.926278114 CEST1.1.1.1192.168.2.140x8b46No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
    Oct 26, 2024 19:07:06.926278114 CEST1.1.1.1192.168.2.140x8b46No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

    System Behavior

    General

    Start time (UTC):17:07:04
    Start date (UTC):26/10/2024
    Path:/tmp/nsharm6.elf
    Arguments:/tmp/nsharm6.elf
    File size:4956856 bytes
    MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

    Chronological Activities