Malicious PDF — malware analysis report

Static analysis result for SHA-256 1983856977f1f909…

MALICIOUS

PDF

44.3 KB Created: 2020-08-10 14:16:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9770ee71d06116d0f9f3c2f34b71a512 SHA-1: 0e97df39693c56157556ed4eb5138e76f7d55bc5 SHA-256: 1983856977f1f909df5c8712f6b710593918baab081bdb4c27b8e39543bbcb97
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to mimic legitimate downloads. The primary redirector URL, https://ttraff.com/pify?keyword=dr+brian+weiss+books+pdf, is flagged as malicious and indicative of a phishing or scam attempt. 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.com/pify?keyword=dr+brian+weiss+books+pdf In PDF document text
    • http://zopif.mastermarinelines.net/uploads/1/3/1/0/131070450/noguve.pdfIn PDF document text
    • http://files.themortimercbs.org/uploads/1/3/0/8/130874683/5928389.pdfIn PDF document text
    • http://files.greaterconcordinterfaithcouncil.org/uploads/1/3/1/4/131407148/goxuxodifo.pdfIn PDF document text
    • http://files.cuctf.com/uploads/1/3/1/4/131414134/615053.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/1/0434/2988/8161/files/46402277795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0029/7633/files/jersey_future_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4351/1703/files/carb_cycling_vegan_meal_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2821/8010/files/42425358098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/mekalejesusiveliselivupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/andromaque_acte_1_scene_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2882/4742/files/16937224222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7682/files/8472679102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/19115344935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6307/3181/files/vezakologomosexorijek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8870/6717/files/ohio_bmv_locations.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_off0000631a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631A 5296 bytes
SHA-256: d0786e0fc4e5d48617e7d6fe943d93ea1f8497ea6dacd02e49341c446373889d
font_01_sfnt_off0000753c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753C 15192 bytes
SHA-256: 6f0e326f4b3c5c9dfe9fe4f32727cad4026cf1c5d974864b1ed21ae7990adf15