Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2672ecca4fe6b9e…

MALICIOUS

PDF

54.8 KB Created: 2020-08-19 05:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fc16827dba4a529d04bcdf168603013b SHA-1: 5fdfc58f341d89d96f6255e3ebdeda07bdf28ca0 SHA-256: c2672ecca4fe6b9e240087d615ea53d8a6b4f9ced74b5a655d865684efeb7534
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous external links, many pointing to Shopify domains. The primary malicious URL identified is https://ttraff.cc/pify?keyword=acidosis+in+cattle+pdf, which is likely used to redirect users to a malicious site. The document body appears to be obfuscated or corrupted, preventing a detailed content analysis.

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=acidosis+in+cattle+pdf In PDF document text
    • http://files.musicgifts4u.com/uploads/1/3/2/7/132712326/2ca946.pdfIn PDF document text
    • http://fotav.lisasporte.com/uploads/1/3/0/9/130969358/ad9c7.pdfIn PDF document text
    • http://mefigise.ouimassachusettslawyer.com/uploads/1/3/2/6/132681352/borigigafal-waretewunizixa.pdfIn PDF document text
    • http://files.elliekilpatrick.com/uploads/1/3/0/8/130813645/50f900.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/1/0433/7215/0947/files/essentials_of_statistics_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/gisomabegijir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9221/3911/files/83330135904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tolipokegegami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/88883109528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2023/8503/files/84250138672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1790/4033/files/33468498589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9826/7029/files/osu_cookiezi_skins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/1413888964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5285/9543/files/famawekigutarakusuwekesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8438/9275/files/free_liability_waiver_form.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 5

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_off00009b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B11 5040 bytes
SHA-256: d03e10fc730cf51a859b01f7791dd17c035b4ea40ca97cace2e0734999d578ef
font_01_sfnt_off0000ac44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC44 10000 bytes
SHA-256: 46447160c828ff7ef36ff1734566b88e88c50e3524a6e4ad38f2f32e1f47114e

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