Malicious PDF — malware analysis report

Static analysis result for SHA-256 803c258f9fc0821e…

MALICIOUS

PDF

36.7 KB Created: 2020-08-04 23:26:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f50d87cbbc48618c697e6bd8864fd02f SHA-1: 28ecad11e93b17b41e09572932e7cf10afdcf1a0 SHA-256: 803c258f9fc0821ed2ddeb9728bde741f422dde6ec35492eeddc530ecad87e9c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service designed to host SEO spam. The primary lure, 'Convert pdf file to word 2020 online free', directs to 'https://ttraff.com/pify?keyword=convert+pdf+file+to+word+2020+online+free', which is flagged as a malicious redirector. This suggests a phishing or scam attempt, likely using the PDF as an attachment in a spearphishing campaign.

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=convert+pdf+file+to+word+2020+online+free In PDF document text
    • http://files.tilliesnevada.com/uploads/1/3/1/3/131379612/xapixivote-pipugu-neruxesivalu-wifuf.pdfIn PDF document text
    • http://files.theshavingwoodworkshop.com/uploads/1/3/0/7/130775837/084ade1f8.pdfIn PDF document text
    • http://files.leahbiadoluisphotography.com/uploads/1/3/2/3/132302978/wabopiguvol.pdfIn PDF document text
    • http://files.nashandcothreads.com/uploads/1/3/1/4/131438180/ferojigorisojebu.pdfIn PDF document text
    • http://files.container-conversions-scotland.com/uploads/1/3/1/6/131637147/5930786.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/1/0433/0687/7080/files/jaxigosileworu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0158/5569/files/82922225563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/21277185892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3842/5767/files/60896463057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0796/5341/files/fiwowujosagejanuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nebisineseboji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0084/5720/files/53853984723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7417/5644/files/capacitive_touch_sensor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0441/8459/files/babovobevemuwatijori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7753/3856/files/22517337880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/5630410615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7246/9669/files/19191399892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/sasejetiduwusubabazome.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_off000051dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51DD 4980 bytes
SHA-256: aee1b47f0ecbf6b46890f1dc60e6aa51c5b615f91e09965737ee976fec6b0b1a
font_01_sfnt_off000062f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F9 10216 bytes
SHA-256: 73b571d31093bf798752e6ba3548de7a8e4a3d54c470fe125d81dea0cd19ae34

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