Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae676d765ce0fb1…

MALICIOUS

PDF

43.6 KB Created: 2020-08-25 07:08:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 832517b2599ea833a33123216c4c7b72 SHA-1: 78d53240de41a36eb163ca6e2c98fd374a199a94 SHA-256: 2ae676d765ce0fb11cd580b519a5198589f213b5e64eec7b5c50b1aab16f1a8f
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO link farming or to redirect users to malicious sites. One critical heuristic identified a link to known malicious redirector infrastructure. The document body itself is largely unreadable binary data, but it does contain the URL that triggered the malicious redirector heuristic. No scripts were extracted from this sample.

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=latex+beamer+insert+pdf In PDF document text
    • http://zagilaso.wildeaboutexploring.com/uploads/1/3/0/7/130776131/8130000.pdfIn PDF document text
    • http://metibo.stcloudpantry.org/uploads/1/3/1/3/131398101/7645825.pdfIn PDF document text
    • http://files.publiclandingrestaurant.com/uploads/1/3/1/3/131398406/8401899.pdfIn PDF document text
    • http://xilaxezag.lforlupus.com/uploads/1/3/0/7/130775451/2663980.pdfIn PDF document text
    • http://wewomi.crosstownmaple.com/uploads/1/3/1/4/131482975/6437088.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/1/0440/4061/8134/files/biogeochemical_cycles_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4906/6394/files/ics_200_quiz_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8832/1435/files/lebibig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7144/6939/files/fivudivedumisozedikatuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4429/6088/files/mcdonald_s_think_global_act_local.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7527/2855/files/file_bitmap_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/55172128725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8886/2622/files/new_email_template_outlook_2010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7005/4805/files/93485546433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/case_files_orthopedic_surgery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5780/6503/files/guxeditofok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9478/5694/files/lawuleduresaxosireb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4103/8234/files/buzatixelebinomunudefa.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_off000062cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CC 5304 bytes
SHA-256: 1fd40c77b4a421d1cdcdc62fcb1d91f7cc9e320f8af6aa38aca8651580f988bb
font_01_sfnt_off000074c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C0 14064 bytes
SHA-256: cf0c4dc5f6d78b6ee9eeb172f94edb26a91c552f04cf82a7059d32abaca9f92a

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