Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a3227698b255b06…

MALICIOUS

PDF

45.9 KB Created: 2020-08-10 13:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2883f7cd8e910869070962a969aaa0cc SHA-1: b7a4125b6b5ec99a09e4dd89eb08d42a98597027 SHA-256: 5a3227698b255b06fb84aa46878cb17bdb671f3d4de1621df4e922b43946a112
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though partially corrupted, includes the same URL and text suggesting a lure for cardiovascular risk stratification information. This indicates a phishing attempt to redirect users to malicious infrastructure.

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.cc/pify?keyword=estratifica%25C3%25A7%25C3%25A3o+de+risco+cardiovascular+pdf In PDF document text
    • http://files.darrenwilson.net/uploads/1/3/1/4/131437149/tikazojezazeb_vomoru_sisego_xaxamifitepo.pdfIn PDF document text
    • http://files.livingcanvasmedia.com/uploads/1/3/1/1/131164157/naduwob.pdfIn PDF document text
    • http://files.uglybugaboo.com/uploads/1/3/0/9/130969061/wexenuzajovine.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4570/0262/files/58451086674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6580/2903/files/54452065386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0677/0849/files/makkar_ielts_speaking_cue_card_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8376/5662/files/wuzumevupababelofoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7673/8462/files/67745405024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6768/6558/files/fitisidusone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/5890/8584/files/lab_volt_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/multiple_alleles_blood_type.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/gasiratuxupadadogem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5665/9621/files/budismo_zen_libros_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20424522606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1048/2591/files/examen_ceneval_simulador.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6244 5440 bytes
SHA-256: 25b4701222ac2610acb9bf487f3978967f8529854aed95c634d8637b0f858b4a
font_01_sfnt_off000073fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73FC 12968 bytes
SHA-256: 525f597bd2843d5cc68e07d3a2b1d7a7703cd1ec84bf302e835c039183dd896a
font_02_sfnt_off000099ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99FF 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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