Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf49586e7400405a…

MALICIOUS

PDF

45.8 KB Created: 2020-08-14 11:29:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87ff95e587281c87a4f3cd2ff3723e6b SHA-1: 8cfc5b7b01837ee54db312e4ad9d5aa8ae34e61c SHA-256: cf49586e7400405a69e6f46141641ce141402c841924ba955e7372f1a8d9ede9
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying a link to a known malicious redirector. The document body, though heavily obfuscated, also contains URLs. The primary attack pattern appears to be a link farm designed to funnel users through malicious infrastructure.

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.ru/wb?keyword=philippine%20folk%20dance%20pdf In PDF document text
    • http://toguxa.wendyrobinsonwow.com/uploads/1/3/2/6/132681352/42e684fcee.pdfIn PDF document text
    • http://files.haikunorthamerica.com/uploads/1/3/2/7/132712355/tipufiruxepotubaxaja.pdfIn PDF document text
    • http://files.baltimorebotanicals.com/uploads/1/3/2/6/132696174/madimif.pdfIn PDF document text
    • http://files.jewellhjohnson.com/uploads/1/3/2/8/132816158/252b1d3f634b0.pdfIn PDF document text
    • http://mowedun.thesaltyherb.com/uploads/1/3/1/3/131383791/pipiwebowa.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/1/0431/6993/9612/files/waste_to_energy_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5743/1196/files/asuhan_keperawatan_anak_dengan_bronkopneumonia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/54771844302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8737/9094/files/acs_practice_exam_organic_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6914/5241/files/10678219722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/toziretodidifumobataw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0876/1751/files/48113874815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6147/7527/files/jijivabewojimemiwezagak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2826/2560/files/iron_man_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/10th_class_math_solution_arts_group.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6758/6213/files/bsf_bharti_2018_19_online_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3789/1482/files/destiny_2_paragon_mod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tazoxusejeko.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_off000076d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D2 5036 bytes
SHA-256: 80d65094f83a4edf60cda833743ef2dca6cd960be1a2dbb5d278d9049f24543a
font_01_sfnt_off000087e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E2 9864 bytes
SHA-256: b8e4de87e8698ec1699e75392102195ddb473b1775b4440311b6453eb3b2ead6

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