Malicious PDF — malware analysis report

Static analysis result for SHA-256 72d4885c6318309b…

MALICIOUS

PDF

35.7 KB Created: 2020-08-23 07:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d84152d66e13fa1bc21099e7487b0deb SHA-1: 003d54acd69bed690c15238d9034759989c6ac77 SHA-256: 72d4885c6318309b4b77570a27ce246c160f5e62d44e7836d6d9c3e28851df9b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, but one critical link redirects through ttraff.com, a known malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=may+2018+telugu+calendar+pdf, suggesting a phishing lure for a calendar PDF. The ML classifier strongly supports 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.com/pify?keyword=may+2018+telugu+calendar+pdf In PDF document text
    • http://kivejo.cunninghamgermanshepherds.com/uploads/1/3/1/4/131437622/wubozidabibi_susep.pdfIn PDF document text
    • http://famokugep.ilmbiz.com/uploads/1/3/2/7/132740748/damemuf.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/1/0431/1692/0996/files/foterimumapiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5866/7415/files/24968239211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/gusupobabawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7645/9422/files/pilitibumafuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/19400087155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/99801637976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/kezenuwexipixopovese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8505/2566/files/74525587989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0612/2393/files/tuvulus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2589/9426/files/animated_coming_soon_template_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7047/9766/files/14175657792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89573664631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2038/1342/files/algebra_1_sol_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4650/8456/files/torn_piriformis_treatment.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_off0000499e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x499E 5772 bytes
SHA-256: 680662391f10925d48cb4035bfe983aed01af6fa93b40c3616bec13027b0f5f5
font_01_sfnt_off00005d61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D61 11016 bytes
SHA-256: 416f42ca3aea3420de7b99b9a4620e43b45fd294cdc8eafdc61965d60b76327f

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