Malicious PDF — malware analysis report

Static analysis result for SHA-256 e11d25862524c076…

MALICIOUS

PDF

33.7 KB Created: 2020-08-17 18:23:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99d266648c15200ed006756405c016b8 SHA-1: 7c90e6f1f38f70850bed02d38a3f0350af1cb221 SHA-256: e11d25862524c076bc30b9e140c77e627c9c820085ffdf486fe197ad442f9d27
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links that lead to a redirector service, which is a common technique for distributing malware or phishing pages. The document body text, though partially corrupted, includes a phrase related to downloading a book, which serves as a lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the malicious nature of the embedded URL.

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=descargar+libro+de+cero+a+uno+pdf In PDF document text
    • http://files.westoneheatingandair.com/uploads/1/3/2/6/132696030/213fd.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/1/0429/2752/1948/files/33891724595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/totipamutoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5945/3860/files/17354347312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93016620893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8577/5519/files/ligikutubutijes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1710/7616/files/zafazadoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8379/2533/files/nemikibuzub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5174/0310/files/calculo_e_administrao_de_medicamentos_na_enfermagem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4270/8378/files/53849120548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/13615599298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamawogedeveredu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4209/2694/files/74988891248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6386/8573/files/jimovokimuxemutut.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 3

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_off00004399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4399 5464 bytes
SHA-256: 994649a229cf27afd4950831ac65b875916f3806451d61a4ef5189d641b41768
font_01_sfnt_off0000562c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x562C 10704 bytes
SHA-256: 22ea69b1cf4e82f68112e8b109bd19ded2c3e6ecdf1afad8decfc399f3ee87d3

Open this report in the interactive analyzer, or submit your own file for analysis.