Malicious PDF — malware analysis report

Static analysis result for SHA-256 240f41955adf1bce…

MALICIOUS

PDF

39.4 KB Created: 2020-08-24 20:44:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2b48ca3f186a785f38d4d50459d46c79 SHA-1: 9ab3da2f18524632d3e1685c7d55b84d6e83c7db SHA-256: 240f41955adf1bce22b5aa9866a30484373f89506dcee2c2f51a6da205f47a60
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and text related to 'astrology answers pisces horoscope', suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the true destination. The ML classifier strongly flagged this PDF as malicious.

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=astrology+answers+pisces+horoscope In PDF document text
    • http://files.patsendangeredanimals.com/uploads/1/3/2/7/132740670/nijirar.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/1/0429/6137/1290/files/kikutekipapij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1446/3394/files/31432388079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/capitec_online_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/niwukubuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/1386/6389/files/3d_photoshop_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/22853147384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1079/4143/files/zurelinimalogure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4504/3880/files/pawaporitegurezewuzomojux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gerakofidasetivivirodipel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0813/files/cetoacidosis_diabetica_pediatria_2020.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_off00005c67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C67 5380 bytes
SHA-256: 567b6a2a362883dd539ab2c2d643c86cf1c7f6b0cedbf6bc3b545fa5167436d8
font_01_sfnt_off00006ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC2 10060 bytes
SHA-256: bdcc15ff81bbe0bc6d8e4fedeba31e601fd7f8610b4ef3f946ab6af6ff8ee217

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