Malicious PDF — malware analysis report

Static analysis result for SHA-256 40835fbdfcb73bec…

MALICIOUS

PDF

34.3 KB Created: 2020-08-21 19:57:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 667f679173278e4bf200583094e702ab SHA-1: 997a223f026b3609d56c676c64ec7390888862e9 SHA-256: 40835fbdfcb73bec0577dfcac62f063f8ac229e56deb120475cb11c546903465
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which points to `https://ttraff.cc/pify?keyword=gold+peep+toe+platform+heels+uk`. This URL is likely used to redirect users to a phishing page or a site hosting malware. The document also contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO poisoning attempt. 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.cc/pify?keyword=gold+peep+toe+platform+heels+uk In PDF document text
    • http://files.themotivationalshop.com/uploads/1/3/2/6/132682974/a5b4bf98016.pdfIn PDF document text
    • http://penuxad.tcjewelers.com/uploads/1/3/1/4/131407089/zosufati-fuzuzubakere-rotupodawupoxe.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/1/0428/5916/7900/files/50_sombras_de_grey_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4805/0586/files/common_stocks_and_uncommon_profits_and_other_writings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3318/files/udp_tracker._openbittorrent._com_80_announce.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3488/9627/files/bajaj_finserv_logo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5096/6950/files/bajufeworub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/8548524011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8402105605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9639/9265/files/teaching_job_cover_letter_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/77534487306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/natelazamibid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2657/9610/files/zuvujukojaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3166/5562/files/pneumonia_guidelines_idsa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9622/5432/files/javascript_reverse_array.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_off000043cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43CD 5376 bytes
SHA-256: e212d634aa8edbaed255f3c9497836c2286864ef741d062420da00964d4f6ee4
font_01_sfnt_off000055f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55F9 11496 bytes
SHA-256: f642aedc571de4c66aac8a77cceabcc1f06a06266ad2028a4764b3066d3aed92

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