Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d759a3de372eb26…

MALICIOUS

PDF

48.8 KB Created: 2020-07-23 17:20:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd9c9f01c2a5819254596b6b7cc9e2c5 SHA-1: aeb10e72063a8be5036580eb35846775a9129246 SHA-256: 0d759a3de372eb26134c506fb3cc0b3cb8a8210f3ef53afd0d4c4888a02eb03e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to the URL https://ttraff.ru/pify?keyword=psalmopoeus+irminia+breeding+report. The document body, though heavily obfuscated, appears to be a lure related to a 'breeding report'. The presence of embedded URLs and the ML classifier's high confidence score suggest this PDF is designed to redirect users to malicious content, likely for phishing or malware delivery.

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=psalmopoeus+irminia+breeding+report In PDF document text
    • http://files.catalystfundraising.com/uploads/1/3/2/7/132740172/4752732.pdfIn PDF document text
    • http://files.mrquerino.com/uploads/1/3/0/9/130968988/tujaxojo.pdfIn PDF document text
    • http://files.mstgrant.org/uploads/1/3/1/3/131380733/9083692.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/1/0434/4178/2946/files/36547858449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/734176390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8052/3681/files/69726545050.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/51095424629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2375/3635/files/tefonodesigodilukalowiliv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2896/2715/files/59804457222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6399/1717/files/fatego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5969/2191/files/41390899735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/78185206591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50878135704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifezunelavezide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7857/4490/files/68454023946.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 6

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_off0000804d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x804D 5304 bytes
SHA-256: 283b535f9ca01f81ab8a03600804dd384205baf539c3c54c4c361664340d0715
font_01_sfnt_off00009226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9226 10436 bytes
SHA-256: 02551338e7493d4d827582dc450d7732aa33d88a9940c78b2d006cc4228eb567

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