Malicious PDF — malware analysis report

Static analysis result for SHA-256 71db0a1439ed4b88…

MALICIOUS

PDF

39.0 KB Created: 2020-08-03 10:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8ef42b3ff4af818467e903339dc07f8 SHA-1: a8c98b46c6caf41dd515526f7f2df39491a884fe SHA-256: 71db0a1439ed4b884b464978065fcc4e6b35422918814a6b307f4201fe0e4ca6
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, https://ttraff.cc/pify?keyword=aeneid+fitzgerald+pdf, which is flagged as malicious. This suggests a phishing or scam attempt, likely using the guise of a free download to redirect users to harmful content. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=aeneid+fitzgerald+pdf In PDF document text
    • http://files.pinetrailscia.com/uploads/1/3/1/8/131871864/sotomuxi.pdfIn PDF document text
    • http://files.cozywritersroom.com/uploads/1/3/1/8/131872032/lesiniwutuvefepale.pdfIn PDF document text
    • http://files.tuslawjba.com/uploads/1/3/0/8/130814124/bumigivuxamibuf.pdfIn PDF document text
    • http://files.americanhealthservices.org/uploads/1/3/0/8/130814104/782306d0a.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/1/0437/6703/8109/files/free_helvetica_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1035/7405/files/25006372942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/41690972757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6705/7063/files/96698949111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/8122240342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7618/2426/files/30233098108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6167/4133/files/fumujajokagokiviganawuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/futazagep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/chromecast_background_images_url.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zafitizeruzu.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 4

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB9 4748 bytes
SHA-256: b49ae7bedea673f8175147b15f9dfdc9af0456e1c0662120fffee63470b1ee31
font_01_sfnt_off00005ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE2 10076 bytes
SHA-256: 76bf0128677e1ccca324dba9320f2e018c70abe56b04e30c983e8cfd3cb05b0c
font_02_sfnt_off0000815d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x815D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.