Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2fcdff050329e89…

MALICIOUS

PDF

42.8 KB Created: 2020-08-20 02:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46855c1598c8eac34fb3b9cb525134fc SHA-1: 5b16eb481df32a96b6c36693be6ef83ee76357e4 SHA-256: d2fcdff050329e89315e16385e5dba8f18453ee2e3745b0aa9a49299f7fafba4
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing indicating it links to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'horror movies free hd'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to distribute the malicious PDF.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=horror+movies++free+hd In PDF document text
    • http://meriwa.kenjorgensendesigns.com/uploads/1/3/0/9/130969600/8669879.pdfIn PDF document text
    • http://files.popideas.org/uploads/1/3/1/6/131606291/vumileviguzefapi.pdfIn PDF document text
    • http://degoposo.livyou.org/uploads/1/3/1/3/131381464/5511216.pdfIn PDF document text
    • http://xomugos.rachelbrodie.net/uploads/1/3/0/7/130776603/bujir_nabefiluka_dadugamubeduji.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/1/0443/4988/2524/files/23085737074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0206/8131/files/angle_of_depression_and_elevation_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/square_and_cube_numbers_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/71297987113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0486/2375/files/wooden_boat_building_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/ccna_200_125_official_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8897/7813/files/depepixumerokonus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8922/2037/files/95944868440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0723/6503/files/ite_parking_generation_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4295/4650/files/16146934951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4160/8100/files/industrial_wastewater_treatment_methods.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B4 4924 bytes
SHA-256: d76c2bbdd7156c077936f51efe908f2dcb4fe164c5a3b02714b2d0650fd4eeeb
font_01_sfnt_off00007a55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A55 10504 bytes
SHA-256: 0679dc29a993b996823accf025d86ebecf3be3cc95feee2577304f281658d606

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