Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f82396bed7f268…

MALICIOUS

PDF

45.0 KB Created: 2020-08-14 10:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd508c406aa5feed08bc34aa3a57b7b4 SHA-1: 2930c807f81a0f588d4f16a546632b98a2c0c90b SHA-256: 72f82396bed7f268d28bba9f66e729ad455ccd42c657e46914bd6ef7cf52897c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to SEO-optimized PDF gateways, and one critical link to a redirector infrastructure. The ML classifier strongly indicates maliciousness. The primary lure appears to be a "Beyblade burst app hack apk", which redirects to the malicious URL https://ttraff.com/pify?keyword=beyblade+burst+app+hack+apk, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/pify?keyword=beyblade+burst+app+hack+apk In PDF document text
    • http://files.hooligantheatre.org/uploads/1/3/1/4/131437457/5052108.pdfIn PDF document text
    • http://paberok.branfordartcenterct.com/uploads/1/3/0/7/130776167/likiruzorole_biwijibaxatu_xeridalanosib_wedev.pdfIn PDF document text
    • http://lubuwep.ryesnextchapter.com/uploads/1/3/1/4/131453133/dotofajim_viguxetiziki_mewusupigas_nusodulogidi.pdfIn PDF document text
    • http://files.enhancedrecovery.info/uploads/1/3/1/6/131607232/e40a7b1c8ebd.pdfIn PDF document text
    • http://loboka.handsonhexham.co.uk/uploads/1/3/1/3/131383483/9642171.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3220/5722/files/kendrick_dna_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1237/4174/files/46705063373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8053/files/31501644431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8588/9689/files/lanopizovukufaketazunexim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9494/1603/files/84841564366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/11870986857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2087/6962/files/49905147676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0911/3240/files/pezamisamegusavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5790/4792/files/cadenas_de_markov_un_enfoque_elemental.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/gelejaxaralutisosutogux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kulabegidubonigupux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0497/4488/files/cambridge_english_advanced_2_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9171/2405/files/mixobafakefizexirubomav.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CA 5132 bytes
SHA-256: 17008afaa2d8604d9fca70d006a4f8152c4791e9bd314ce4c7116d0dba68709c
font_01_sfnt_off00007551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7551 10304 bytes
SHA-256: 398ec4e98af666684e176f369c22a376fa4377f5c7b1009fd0db2fc1a12bb7e1
font_02_sfnt_off000098a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98A2 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f