Malicious PDF — malware analysis report

Static analysis result for SHA-256 132f1b285ee3ef6f…

MALICIOUS

PDF

40.3 KB Created: 2020-08-18 17:09:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f0dcb89240f6e499ac1d31e2dd4ac13 SHA-1: b5fb156451d161e8acc9d4322dd52120bd53b322 SHA-256: 132f1b285ee3ef6f278f042e5c54f0db4ffd03e7b298157bb50d421f6b46c7d5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm designed to appear as legitimate downloads, but it redirects to a malicious domain. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the document is part of a phishing or scam campaign. The ML classifier also strongly flagged this PDF as malicious.

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=dwg+trueview+2019+msi In PDF document text
    • http://sebelava.acromios.eu/uploads/1/3/2/7/132712336/7325522.pdfIn PDF document text
    • http://files.greenremediesnj.net/uploads/1/3/1/4/131483492/e527756672efea.pdfIn PDF document text
    • http://files.clearviewstg.com/uploads/1/3/1/4/131437242/20d990f.pdfIn PDF document text
    • http://files.mysticfighters.com/uploads/1/3/2/6/132680926/baxalumijomagopa.pdfIn PDF document text
    • http://files.justdancecustoms.com/uploads/1/3/1/6/131606392/loxenaziko_zeximar_gujeluxipube_zuvorowif.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/1/0429/9515/5105/files/mobadekukevepomojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8036/7780/files/supus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0967/7224/files/wiwolupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4264/1832/files/difference_between_bailable_and_non_bailable_offences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1914/0252/files/l_histoire_de_blanche_neige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8555/2030/files/buvavadazekuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0826/0258/files/post_tensioning_manual_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8298/files/luxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/bilinguality_and_bilingualism_hamers_blanc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7827/7525/files/browser_chrome_ing_proxy_script.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 3

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_off00005c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C58 5396 bytes
SHA-256: ecc6552665fd8219b665d046eaaaeccade13201389d9cd2517888e469a93d511
font_01_sfnt_off00006ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC5 11096 bytes
SHA-256: 48fe4ebb54abc13479ada45bdf427aff18f7b7075bc6aa7178448b590f523125

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