Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab2c8c3b65249ad4…

MALICIOUS

PDF

46.7 KB Created: 2020-08-15 07:53:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ccaaa918404431f23826b8211a6870ba SHA-1: 21c9f7cb18fc1ffbd85bf1bff7894e4138f428e0 SHA-256: ab2c8c3b65249ad44122220ad5b8fd748f171392cd918066f847a809bdd13a4a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to Shopify domains hosting other PDFs, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a link farm or SEO poisoning tactic designed to funnel users to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of the malicious redirector URL is the primary indicator of compromise.

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=bnf+pdf+2018+free In PDF document text
    • http://files.mindfullifefocuscommunity.com/uploads/1/3/0/8/130814459/losimogumepotoj.pdfIn PDF document text
    • http://files.iowaartists.us/uploads/1/3/1/4/131453753/luzosazufexagax_fesutafi_xozuvovepavutu_riledavibuj.pdfIn PDF document text
    • http://files.callowaychurch.org/uploads/1/3/1/3/131380288/523261.pdfIn PDF document text
    • http://mapadu.jdgivens.com/uploads/1/3/0/7/130776819/ponexip.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/1/0432/1060/4705/files/wavezajusenewuloziwazixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8323/5489/files/kiluwitufot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/anatomie_oreille_externe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8687/9651/files/13196112457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2307/2412/files/62833857843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8466/7287/files/buzefegejijaridosewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/vulapodoset.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0454/9544/files/salesforce_admin_maintenance_exam_spring_19_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/xiwatizirudafuson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/xulezalexuzudalededaguk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0267/2798/files/vufarotamunabese.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 8

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_off00006ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA4 5184 bytes
SHA-256: 68cfbb51afd629cdbdda897029d7f3a3e526bf61b61caf67a71c8d2302e949b4
font_01_sfnt_off00007e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E60 14984 bytes
SHA-256: b3e83d5bb2bdbe6e81f446d547fdbbc3ec890c2f7ea6862249b7322832dbb298

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