Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae0248776f1782f6…

MALICIOUS

PDF

37.0 KB Created: 2020-08-20 19:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06e4374e72e1197958219616d55de291 SHA-1: 599b8af92f4c4f1d7a5a638c5bf38000abe81076 SHA-256: ae0248776f1782f6863820455b447c8ee55ed31e8695a1723d84cd237193a1de
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'Aviva stakeholder pension application form' and the malicious URL. This suggests a phishing lure designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aviva+stakeholder+pension+application+form In PDF document text
    • http://files.lorenzoscarling.com/uploads/1/3/0/9/130969918/gufojonilugeko.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/1/0430/6544/2457/files/visuzazub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6305/8340/files/pupilareripositude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1049/7434/files/xijizok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/vertical_limit_movie_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1766/5701/files/63669016713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9499/0243/files/brain_tumor_detection_using_image_segmentation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/biopsychology_pinel_10th_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4403/5993/files/tamokofegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2373/5720/files/6299169315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/22325971810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/36197540675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2243/4972/files/jamidun.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 1

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_off000052c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C7 5508 bytes
SHA-256: 2ed2370ccd9675dbe61e7a24d4b49b9154e4563c893b054d409c0db4e28caac2
font_01_sfnt_off0000655b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655B 9984 bytes
SHA-256: 81f18ff0d73c5e432bc2e1bb21c4aa6399ce830c867bda9cedd1bb4f46492468

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