Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2d72d74e09d833…

MALICIOUS

PDF

34.2 KB Created: 2020-08-20 23:04:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f0dea5ec88204a8c6f3541973e22a89 SHA-1: f558403a07c7a517191120d5dd9601d1191f9abd SHA-256: ca2d72d74e09d833e20dab5a77960e6e22eb5549c68011e89e5638e8b235da77
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 the primary link directing to a known malicious redirector service. This suggests the document is designed to lure users into visiting malicious websites, likely for phishing or malware distribution. The presence of a link farm further supports this malicious intent.

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=sentence+fragments+worksheet+7th+grade In PDF document text
    • http://pijekom.fracturedpottery.com/uploads/1/3/0/8/130814729/9638260.pdfIn PDF document text
    • http://files.atxshoeplug.com/uploads/1/3/0/8/130874580/d1fc6.pdfIn PDF document text
    • http://kolokulen.judithrpetersonphotography.com/uploads/1/3/0/7/130776485/5917258.pdfIn PDF document text
    • http://mebab.chabadeli.com/uploads/1/3/2/7/132740478/df7f352.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/1/0449/3164/5608/files/happy_birthday_card_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/47572467201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/pugipivitijopek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0026/5878/files/digital_electronics_basic_mcq_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/tonaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6099/9830/files/28675289767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3257/files/narufusowaruwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3062/5947/files/warranty_deed_form_california.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4520/7714/files/97872028068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1197/3025/files/lojepokido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3342/0199/files/revogoxejidigakokefiko.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 7

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_off000047ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47AB 5744 bytes
SHA-256: 55e11fab1286acc2834e6402f11f14451e90c9c9166e33bbfa387e2255c0c850
font_01_sfnt_off00005b20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B20 9656 bytes
SHA-256: d60a66061bacb4be67462ba973ba3cbb2908df44f4211d620a0be04289f980ba

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