Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d4dc228b959828a…

MALICIOUS

PDF

40.7 KB Created: 2020-08-27 13:09:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cbe74cfa0d89dcf67d51a3af149f0e6d SHA-1: 84b10316b31afeb04166509279e620bc5b5d39b4 SHA-256: 1d4dc228b959828a8202ebabada27e839180d02ad171e396ac5c5608e8e3ae16
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=free+printable+welcome+banner+templa', is likely used to redirect users to a phishing page or download further malware. The document also contains a large number of links to Shopify, which is likely part of a link farm to improve SEO for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free+printable+welcome+banner+templa In PDF document text
    • http://nirixe.andywilsonmusic.net/uploads/1/3/1/6/131606289/pifosetowogilozo.pdfIn PDF document text
    • http://files.kenleighsfiberstudio.com/uploads/1/3/1/4/131411688/6cbf56d1f55c1e.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/1/0435/0889/1807/files/igitabo_cy_amategeko_ahana_mu_rwanda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9541/7237/files/10533193224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/faravuwagegewuparoweluram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1448/7190/files/45330343325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6294/3144/files/berberine_and_metformin_taken_together.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0162/5252/files/sbi_bank_syllabus_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5104/7329/files/milizowuvopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2157/2008/files/sociology_class_12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/counseling_services_processes_and_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6271/4773/files/toxuzalogilunaxobixokago.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_off00006050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6050 5088 bytes
SHA-256: e05cbd0b34954e12a89298b6b6932e5810eafa3ec20f78881ba3d319884b9db8
font_01_sfnt_off0000718f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718F 10676 bytes
SHA-256: a8ab05817d0dddbe50f5ca9929f1b9cab5349210a8b463e4716221de7889e927

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