Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad299e1f5d19186a…

MALICIOUS

PDF

41.1 KB Created: 2020-08-24 02:19:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89012529585d03d311f021be2b287da3 SHA-1: 1dc6c32d5f6126c65d52e7950e4f128b4d06bf51 SHA-256: ad299e1f5d19186a7a346a118d430ee3cd5db4287690f75af874d8139acb0f25
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, with one pointing to a known malicious redirector infrastructure. The document body itself is heavily obfuscated and appears to be a lure, possibly related to search engine optimization (SEO) manipulation or to host further malicious content. The presence of numerous external PDF links suggests a link farm strategy, potentially to improve search engine rankings or distribute malware.

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/pify?keyword=cat+island+ms+fishing+reports In PDF document text
    • http://fuwil.soarohio.org/uploads/1/3/0/8/130874113/jabaxosotelibo-mavitudul-volagexijufor.pdfIn PDF document text
    • http://files.jaimearon.com/uploads/1/3/2/3/132302859/danagitepuxevuguvi.pdfIn PDF document text
    • http://risuvaz.dvasbo.org/uploads/1/3/2/7/132712253/kuxitejitadi_kolumenulawa.pdfIn PDF document text
    • http://files.projectauntieskids.org/uploads/1/3/0/9/130969220/wuvozikizowu-tedexubekijup-mugetozavu-xufegodagazuvod.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/1/0433/5294/8901/files/85048499805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6241/1935/files/timadaweputigiteludirenif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/vevisirofexagikiketi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5393/0901/files/journaux_algerie_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5847/0816/files/vefovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80787326618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6961/1930/files/58759798719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/xuwesibefuwopula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7478/1338/files/business_law_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4202/8182/files/all_in_one_toolbox_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4828/7904/files/69990542672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5027/0869/files/tivolot.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_off0000621a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621A 5360 bytes
SHA-256: 3b594372f78278414122ccfbf0d5f416ec5fa7921812a7512c0d8166db4e5f17
font_01_sfnt_off00007421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7421 10356 bytes
SHA-256: 3b01749fbea4304f58b4f48277f0749e6ba039153273963576f7771341a92969

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