Malicious PDF — malware analysis report

Static analysis result for SHA-256 072fb3f018adcb6c…

MALICIOUS

PDF

39.8 KB Created: 2020-08-23 15:38:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89487c4b5deb7db8e3ef4de7801187a8 SHA-1: d3c9d573dcdbd169374e38776c3eb905214ff2cd SHA-256: 072fb3f018adcb6c2e940e4b7bf605ce215b433904beb6fa2126458f28451442
194 Risk Score

Malware Insights

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

The PDF contains a lure to install a cinema APK on Roku, directing users to a malicious redirector URL. This URL is part of a link farm designed to host numerous PDFs, likely for SEO-based phishing or malware distribution. The ML classifier strongly indicates maliciousness, and the embedded URLs suggest 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=install+cinema+apk+on+roku In PDF document text
    • http://files.davidbosephotography.com/uploads/1/3/0/9/130969897/wakut-tanerinaxobagox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8660/0609/files/gixefuvunomapikudegosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7850/6909/files/sscn_bkn_cpns_2018_formasi_kalteng.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5765/1613/files/pure_imagination_sheet_music_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5280/0929/files/bristol_fire_pump_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7061/0851/files/vlookup_function_in_two_excel_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/zibivefabedinepevoraxona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1068/files/chrome_tabs_executescript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/sabirodinuxusupuwepes.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_off00006181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6181 5080 bytes
SHA-256: 302793de6619cb30dae6a6c5551394461a39b199636f0ffcd6e9226af82acbb5
font_01_sfnt_off000072a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A4 9392 bytes
SHA-256: d09cb37a087e0bc910c15f5477dc3b2c976c5ad1308711944c5aac6837b4566e