Malicious PDF — malware analysis report

Static analysis result for SHA-256 763826201bb62513…

MALICIOUS

PDF

35.3 KB Authoring application: Mobipocket Creator First seen: 2020-09-24
MD5: b3540e005fc89eb66b10206b43d054a1 SHA-1: 710e62d02c0de05663a7eabc24d3a308a649c388 SHA-256: 763826201bb625130658d77ca75da3c35b6ba95a8f45cfe2b73614cf00fc9faa
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document exhibits characteristics of a link farm, embedding numerous URLs that point to other PDF files. This technique is often used to artificially inflate search engine rankings or to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier's high confidence score further support its malicious nature. No scripts were extracted, but the sheer volume of embedded links suggests a traffic-generation or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://mrdombaza.com/uploads/1/3/0/3/130323342/dupipagavo.pdf In PDF document text
    • http://moikaitrading.com/uploads/1/3/0/7/130739987/4273700.pdfIn PDF document text
    • http://jparrismusic.com/uploads/1/3/0/3/130323612/07b1a.pdfIn PDF document text
    • http://billsduckcarving.club/uploads/1/3/0/7/130776542/vobabugaxadiji-butukar-nibijuwizo-romavu.pdfIn PDF document text
    • http://jasandjo.com/uploads/1/3/0/8/130813851/e38ed5cf82cc78.pdfIn PDF document text
    • http://musicdepotrocks.com/uploads/1/3/0/6/130604207/makajexesunerapago.pdfIn PDF document text
    • http://mydanielswaterfrontcondo.com/uploads/1/3/0/6/130621665/xinufipiz.pdfIn PDF document text
    • http://nalbarra.com.au/uploads/1/3/0/3/130323232/6960277.pdfIn PDF document text
    • http://drjesalvaphotography.com/uploads/1/3/0/2/130288391/ac8d2f.pdfIn PDF document text
    • http://opusjobs.net/uploads/1/3/0/6/130621897/mafavozotiwa.pdfIn PDF document text
    • http://www.basiccomputertutoring.com/uploads/1/3/0/2/130288361/noranazoxoromewep.pdfIn PDF document text
    • http://www.barcrofts.co.uk/uploads/1/3/0/5/130589435/pifamalovevefanoxa.pdfIn PDF document text
    • http://mykittykandy.com/uploads/1/3/0/5/130541103/patuda_zetofitupu_linep.pdfIn PDF document text
    • http://stagandbarrel.co/uploads/1/3/0/6/130621826/1922580.pdfIn PDF document text
    • http://erinlampa.com/uploads/1/3/0/7/130775032/6859156.pdfIn PDF document text
    • http://honestlyabe.com/uploads/1/3/0/5/130540197/xalozekava.pdfIn PDF document text
    • http://www.altogetheranna.ca/uploads/1/3/0/9/130969390/zatuvev-gelesope-sofiduxagifit-wepelolimidebow.pdfIn PDF document text
    • http://www.ceonladesigns.com/uploads/1/3/0/6/130639530/5288708.pdfIn PDF document text
    • http://hostmaster.pawsplayground.co.uk/uploads/1/3/0/5/130590413/kiniwivadolu_zidekafivowis_karuzi.pdfIn PDF document text
    • http://notyourfathersadvisor.com/uploads/1/3/0/2/130270879/kexada_futogegivuwomax_bulabivegaturos.pdfIn PDF document text
    • http://unitedinfood.com/uploads/1/3/0/7/130740389/15384843.pdfIn PDF document text
    • http://courtneyscorner89.com/uploads/1/3/0/5/130551342/5249321.pdfIn PDF document text
    • http://theaterworx.info/uploads/1/3/0/6/130605292/9716392.pdfIn PDF document text
    • http://appraisejewelry.net/uploads/1/3/0/5/130545818/17a022.pdfIn PDF document text
    • http://boxinyulechengdaili.br3h.com/uploads/1/3/0/8/130814021/130814021.html#ako+ay+pilipino+karaoke+song+downloadIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000029a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29A3 6616 bytes
SHA-256: 2cd2023af86a95ab54b726576ada37b075204135ac7987fce3134f2205c79381