Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd2fc15ee79caecc…

MALICIOUS

PDF

39.2 KB Created: 2020-07-27 21:35:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 08751604bfc41a194d392d67700a5481 SHA-1: ccec77df1742d91e68b2add0a8f44f4881b6933f SHA-256: bd2fc15ee79caecc6a15e7af07e209deb77e5cb2605fa122380c96d524a6b2f8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=atwinc1500+programming+guide'. It also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, suggests a lure related to a programming guide. The ML classifier strongly indicates maliciousness.

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=atwinc1500+programming+guide In PDF document text
    • http://files.barbarajtilly.com/uploads/1/3/1/4/131452841/xixofaku.pdfIn PDF document text
    • http://files.erminiogarotta.com/uploads/1/3/0/9/130969498/venijev.pdfIn PDF document text
    • http://files.shopmaggiemaeboutique.com/uploads/1/3/1/3/131380001/vamosureve.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/buxigol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1820/6887/files/61692663014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9486/6088/files/sesunavezevepabofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/42924985158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7754/9728/files/tolewizorageroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rerivavegexem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5481/7690/files/lemisirowerevubaguvix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2873/4375/files/xinitoduvazivalaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0595/8565/files/kalizuxitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7164/2527/files/sekomakokaganudadatokuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/navukoputofabexap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0094/7103/files/wusamewafozijuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/vedusiwugabofi.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 2

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_off00005a54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A54 5464 bytes
SHA-256: 8b7d19cbd41c09c9dd14b4dca2b08c4b38f34f5350f103a8bfe52a25d8e7f308
font_01_sfnt_off00006cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDA 10344 bytes
SHA-256: 57b2ce24ed7aeb41360a7017753cd557a26bbfb523b79cb64ca9e413259dfe97

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