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Linux Analysis Report
dlr.spc.elf

Overview

General Information

Sample name:dlr.spc.elf
Analysis ID:1644395
MD5:4c64194c880a00a222c872130ff3a89a
SHA1:2b24b939fa904a04f6d452503cee65136373bda8
SHA256:82f9e32dfea16c1c30a91936a7ebec137874869aa817d447d29355fd318337ce
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:1644395
Start date and time:2025-03-20 14:56:59 +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:dlr.spc.elf
Detection:MAL
Classification:mal48.linELF@0/0@2/0
Command:/tmp/dlr.spc.elf
PID:5494
Exit Code:139
Exit Code Info:SIGSEGV (11) Segmentation fault invalid memory reference
Killed:False
Standard Output:

Standard Error:
  • system is lnxubuntu20
  • dlr.spc.elf (PID: 5494, Parent: 5416, MD5: 7dc1c0e23cd5e102bb12e5c29403410e) Arguments: /tmp/dlr.spc.elf
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: dlr.spc.elfVirustotal: Detection: 28%Perma Link
Source: dlr.spc.elfReversingLabs: Detection: 38%
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/dlr.spc.elf (PID: 5494)Queries kernel information via 'uname': Jump to behavior
Source: dlr.spc.elf, 5494.1.0000559613b6f000.0000559613bb1000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/sparc
Source: dlr.spc.elf, 5494.1.00007fff1bd63000.00007fff1bd84000.rw-.sdmpBinary or memory string: M)x86_64/usr/bin/qemu-sparc/tmp/dlr.spc.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/dlr.spc.elf
Source: dlr.spc.elf, 5494.1.0000559613b6f000.0000559613bb1000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/sparc
Source: dlr.spc.elf, 5494.1.00007fff1bd63000.00007fff1bd84000.rw-.sdmpBinary or memory string: /usr/bin/qemu-sparc
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: 1644395 Sample: dlr.spc.elf Startdate: 20/03/2025 Architecture: LINUX Score: 48 8 daisy.ubuntu.com 2->8 10 Multi AV Scanner detection for submitted file 2->10 6 dlr.spc.elf 2->6         started        signatures3 process4

This section contains all screenshots as thumbnails, including those not shown in the slideshow.


windows-stand
SourceDetectionScannerLabelLink
dlr.spc.elf28%VirustotalBrowse
dlr.spc.elf39%ReversingLabsLinux.Backdoor.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

NameIPActiveMaliciousAntivirus DetectionReputation
daisy.ubuntu.com
162.213.35.24
truefalse
    high
    No contacted IP infos
    No context
    MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
    daisy.ubuntu.comdlr.ppc.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    sh4.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.25
    mips.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.25
    x86.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.24
    resgod.spc.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    m68k.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.24
    i686.elfGet hashmaliciousGafgyt, MiraiBrowse
    • 162.213.35.24
    miner.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.25
    arm5.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    hoho.m68k.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    No context
    No context
    No context
    No created / dropped files found
    File type:ELF 32-bit MSB executable, SPARC, version 1 (SYSV), statically linked, stripped
    Entropy (8bit):4.753628742664923
    TrID:
    • ELF Executable and Linkable format (Linux) (4029/14) 50.16%
    • ELF Executable and Linkable format (generic) (4004/1) 49.84%
    File name:dlr.spc.elf
    File size:1'272 bytes
    MD5:4c64194c880a00a222c872130ff3a89a
    SHA1:2b24b939fa904a04f6d452503cee65136373bda8
    SHA256:82f9e32dfea16c1c30a91936a7ebec137874869aa817d447d29355fd318337ce
    SHA512:ce8d8c6e7d2affd9e395da49bfa04edbbc600192ed9ad1762b8872dab0536e1d900d9bdb2c0c13cc731f877e7df23b734cfb8d04f32f5009dee348bd06c862d8
    SSDEEP:24:3jvDq3N0yTKE9kQuFG8MRQPhCrjSkvFSJ9lrNTawqFk:XWVTlWG8MtDv+9ZNuPk
    TLSH:AF21EF7FFBBB8A16C860903A4EA363257670DC4C0018D26ABF617B1DDC526116F961F0
    File Content Preview:.ELF.......................h...4...0.....4. ...(....................................................................dt.Q.................................* ...`......*`..*........................ ....................... ...................................

    ELF header

    Class:ELF32
    Data:2's complement, big endian
    Version:1 (current)
    Machine:Sparc
    Version Number:0x1
    Type:EXEC (Executable file)
    OS/ABI:UNIX - System V
    ABI Version:0
    Entry Point Address:0x10368
    Flags:0x0
    ELF Header Size:52
    Program Header Offset:52
    Program Header Size:32
    Number of Program Headers:3
    Section Header Offset:1072
    Section Header Size:40
    Number of Section Headers:5
    Header String Table Index:4
    NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
    NULL0x00x00x00x00x0000
    .textPROGBITS0x100940x940x3340x00x6AX004
    .rodataPROGBITS0x103c80x3c80x480x10x32AMS008
    .bssNOBITS0x204100x4100x80x00x3WA004
    .shstrtabSTRTAB0x00x4100x1e0x00x0001
    TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
    LOAD0x00x100000x100000x4100x4105.09090x5R E0x10000.text .rodata
    LOAD0x4100x204100x204100x00x80.00000x6RW 0x10000.bss
    GNU_STACK0x00x00x00x00x00.00000x6RW 0x4

    Download Network PCAP: filteredfull

    TimestampSource PortDest PortSource IPDest IP
    Mar 20, 2025 14:57:53.572092056 CET3924353192.168.2.148.8.8.8
    Mar 20, 2025 14:57:53.572149992 CET3394053192.168.2.148.8.8.8
    Mar 20, 2025 14:57:53.666624069 CET53392438.8.8.8192.168.2.14
    Mar 20, 2025 14:57:53.682809114 CET53339408.8.8.8192.168.2.14
    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Mar 20, 2025 14:57:53.572092056 CET192.168.2.148.8.8.80x7276Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Mar 20, 2025 14:57:53.572149992 CET192.168.2.148.8.8.80x8ee7Standard query (0)daisy.ubuntu.com28IN (0x0001)false
    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Mar 20, 2025 14:57:53.666624069 CET8.8.8.8192.168.2.140x7276No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false
    Mar 20, 2025 14:57:53.666624069 CET8.8.8.8192.168.2.140x7276No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false

    System Behavior

    Start time (UTC):13:57:51
    Start date (UTC):20/03/2025
    Path:/tmp/dlr.spc.elf
    Arguments:/tmp/dlr.spc.elf
    File size:4379400 bytes
    MD5 hash:7dc1c0e23cd5e102bb12e5c29403410e