Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed489755a203e066…

MALICIOUS

PDF

41.3 KB Created: 2020-08-22 12:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7cf600f58db8c8d045cc28ea5a98e80d SHA-1: 544ef70b920d6260ee861c19e20087ca140f5086 SHA-256: ed489755a203e066b405694c0fd4ac5bbdb33054dca09eb31c2d994baac8c9d2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, including a redirector to 'ttraff.com' which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'Apache open office spreadsheet tutorial', suggesting a lure to disguise the malicious intent. The primary malicious IOC is the redirector URL, which likely leads to a further stage of the attack.

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=apache+open+office+spreadsheet+tutorial In PDF document text
    • http://tetoxuke.firstdesign.org/uploads/1/3/1/4/131406982/xoxedasotubixadigu.pdfIn PDF document text
    • http://files.itanecoleman.com/uploads/1/3/1/1/131163540/dilaweketukop-zuwiperovuron-sibedutafuzipol-notanevo.pdfIn PDF document text
    • http://files.ofp.cosmo-ufes.org/uploads/1/3/1/8/131856992/tugigajimeg_pelezalufexe_datigojixifure_xitefob.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/1/0432/3514/7933/files/gitijomaravemexowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8695/4140/files/pdf_to_dwg_converter_2020_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/4337/3480/files/skyrim_enchanting_loop_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/lipigixezogidij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7886/7358/files/cours_anglais_niveau_debutant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/xedok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3049/4882/files/dajisafazufipupugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/5187463056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6771/8309/files/16545040547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2119/5688/files/coleman_tent_air_conditioner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3046/1081/files/sheet_metal_gauge_chart.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_off000061ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61EA 5232 bytes
SHA-256: aa4366dae39d970231563ee575d8f78302e9ce85f9fbbdf8b3b478bda742b83f
font_01_sfnt_off000073a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A4 10552 bytes
SHA-256: 090ff8f8225b45fd1bbc7e49782672a018259ff0d6300715f12a3827c440c6b5

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