Malicious PDF — malware analysis report

Static analysis result for SHA-256 39a4ac0638535a1c…

MALICIOUS

PDF

44.9 KB Created: 2020-08-14 13:06:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6f96adfae0355ce60dbe86a0c25b08e4 SHA-1: 1f1664bab3a36ffbafb81a2ebbb2549897767e61 SHA-256: 39a4ac0638535a1c17415b0ba3c02362402c7c299233cc5bcbb6c40fbaf987d9
194 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, containing numerous external links. One critical heuristic identified a link to known malicious redirector infrastructure at 'ttraff.com'. While many links point to benign Shopify domains, the presence of the malicious redirector and other unknown URLs suggests a malicious intent, likely to lure users to harmful content or for SEO manipulation. No scripts were extracted from this sample.

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=where+to+buy+aluminum+sheet+persona+5 In PDF document text
    • http://xodamowef.3dppegtha.ca/uploads/1/3/1/4/131483492/39a66c8b5f52.pdfIn PDF document text
    • http://files.capitalcitybev.com/uploads/1/3/0/9/130969012/gigidikatasola.pdfIn PDF document text
    • http://telinox.thenorthwoodsnews.com/uploads/1/3/1/8/131856372/1cc26f.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/1/0433/4436/3678/files/sociopata_definicion_psicologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0929/9864/files/the_voice_celtic_woman_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9333/4947/files/cardiomyopathie_hypertrophique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2658/6532/files/64540201145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/92484707337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/ruzobexorujib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0935/1585/files/bestwap_song_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1820/6887/files/essential_organic_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5920/6549/files/learning_russian.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9862/7495/files/bticino_classe_300x13e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3305/9737/files/12878350744.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6036/2392/files/dikevilikudezufegitawenew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5931/2800/files/47131765180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2055/6187/files/jspdf_autotable_themes.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 1

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_off00007117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7117 5440 bytes
SHA-256: 09820ce6d1c688819d2501ed870e003b2f48351ec1e2f831f1dd67c563fe2631
font_01_sfnt_off00008381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8381 10320 bytes
SHA-256: 3094718acda275ddf9d1f8fc145a459cfabdfe3fd976d9eb0f19a89e1e88bd8f

Open this report in the interactive analyzer, or submit your own file for analysis.