Malicious PDF — malware analysis report

Static analysis result for SHA-256 07020064596f5251…

MALICIOUS

PDF

39.9 KB Created: 2020-11-08 15:17:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 488d14baa0459d79ceda87b5ecb2f15f SHA-1: 7a2d001ce575d804844f3cfd357bfd41c4102f62 SHA-256: 07020064596f52519e9282a45c12e1d783506f8f0b2eb931eebc480ec1d59b78
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://trafficel.ru/123?keyword=pokemon+sun+and+moon+guide+pdf PDF link annotation
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/nifowetese.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f9e2f9d601d8.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/waxojug.pdfIn PDF document text
    • https://femekeviwafuga.weebly.com/uploads/1/3/4/3/134345727/ginimoxikapebusu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371495/normal_5f90ce0089965.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/fasuraruleze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/liguwubore/juxonajuze.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/zikimotijewafo.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/quiet_partner_iii_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/85848895972.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/vivid_seats_vs_stubhub_vs_ticketmaster.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/solidworks_api_tutorial.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B33 5300 bytes
SHA-256: 01d0138d6a70dd9a17d71dec370eb41b717ab56b79259b5241ffdb21f749ccb4
font_01_sfnt_off00006d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D39 11116 bytes
SHA-256: 3cb2397f8caa7822e91f8ffd7cc8b2aa9d053d579416c1b146bf94774040f446