Malicious PDF — malware analysis report

Static analysis result for SHA-256 997f29c09fa71cac…

MALICIOUS

PDF

43.8 KB Created: 2020-08-22 13:03:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a02e79145a7d79a6f6a1a933efc0efc SHA-1: 8cbd24f437b3c4b598dc74538d3a7dbd257205e9 SHA-256: 997f29c09fa71cac8dcb4d73f1ae36a492b0282f01e5e7a33b203437ec809d17
234 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to a URL related to a 'vans platform sneakers sale'. This URL is designed to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains the same redirector URL and numerous other URLs, many hosted on Shopify, likely as part of a link farm to improve search engine ranking for malicious content. The ML classifier also strongly flagged this PDF as malicious.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=vans+platform+sneakers+sale In PDF document text
    • http://woxakaw.shorewoodculinaryarts.org/uploads/1/3/0/8/130874655/21940.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/1/0428/9835/8432/files/93616534700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0436/9816/files/39370990923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4131/6264/files/minidipivuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/nefan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4663/2615/files/hewlett_packard_proliant_dl360_g5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8100/5224/files/43884355962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2670/1726/files/nonemokesama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/beyond_compare_git.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/46481422024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/72596192392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0108/2020/files/linked_list_data_structure_in_c.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 8

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_off00005fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FEA 4816 bytes
SHA-256: 2dddaf5bd8b4027975e5fd8a00c9217941fef88d4fda153c9ccd82f50d7fab30
font_01_sfnt_off0000702c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702C 10776 bytes
SHA-256: ce15e020789bab009b6bb377ea20c42e3742b4200460ef4324885b5116bb6acc
font_02_sfnt_off00009478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9478 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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