Malicious PDF — malware analysis report

Static analysis result for SHA-256 098361619cc31f5f…

MALICIOUS

PDF

48.8 KB Created: 2020-08-06 01:53:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c593195719961bf5e9c6aaddc0dbb81 SHA-1: 2ac16799533dffdedb32c2942acdbeef8864b347 SHA-256: 098361619cc31f5feddcc4f0e48284149bcc29c8edd78c9d3c674729f8c4d176
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links designed to appear as a link farm for SEO purposes, with a primary malicious redirector identified. The ML classifier strongly indicates maliciousness. The embedded document body text, though corrupted, contains a URL that matches the malicious redirector, suggesting a phishing or scam attempt.

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=f+factor+diet+book+pdf In PDF document text
    • http://files.ncxctf.com/uploads/1/3/0/7/130775732/ranonojip.pdfIn PDF document text
    • http://files.lightningridgerealestate.com.au/uploads/1/3/2/8/132815961/tuwor.pdfIn PDF document text
    • http://files.iam4republicairways.com/uploads/1/3/2/3/132302871/8e5600451500.pdfIn PDF document text
    • http://files.blueabstractart.com/uploads/1/3/1/8/131872178/76448.pdfIn PDF document text
    • http://piwowene.caitlinpafford.com/uploads/1/3/1/3/131383651/tajejivegotelow-regiju-fukomofez.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/1/0432/9363/8822/files/53282054840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/13671888879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/1531070503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8536/4390/files/89338326559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/masonavuxuzediluwuzozimag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4717/4812/files/dipubipafizuzafovuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6862/8892/files/87084785108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6117/8521/files/steel_design_segui_6th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0972/6888/files/gagirokafuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8251/3561/files/complete_information_about_computer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2797/1741/files/20444941060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6710/3645/files/gadelixex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4956/5853/files/jipugup.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_off0000827e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x827E 5100 bytes
SHA-256: 0b713a1825717025c4d08d08b66a405c08b454b43e37406fec2208260e963f56
font_01_sfnt_off000093e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93E8 10024 bytes
SHA-256: 7d9a5558cec6fc311a5b9cfd3cdad63653d9ff94fe355e6c3f2e231bfcaff36f

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