Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfb3475f500ff836…

MALICIOUS

PDF

32.5 KB Created: 2020-08-25 17:50:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 385a016da7da7a0a4374c0ba0205c77c SHA-1: 4996fae7dcc21daed3b25b4f2b1b93571325b605 SHA-256: dfb3475f500ff836577ba35e2c1c6df1dbe74e1e1c197da659740fdd9bbe6a65
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, many pointing to benign Shopify domains, but one critical link directs to a known malicious redirector at `https://ttraff.cc/pify?keyword=mexican+fiesta+invitations+templates+free`. This suggests the document is designed to lure users to malicious content, likely for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

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=mexican+fiesta+invitations+templates+free In PDF document text
    • http://files.evansvillecathedralofpraise.com/uploads/1/3/1/3/131378897/3303613.pdfIn PDF document text
    • http://mezisan.uncagedventures.com/uploads/1/3/1/4/131482823/tugekonepasepu.pdfIn PDF document text
    • http://kifamix.hiflos.com/uploads/1/3/1/4/131406390/wakozasera.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/1/0452/5703/1842/files/genetic_disorders_pathology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4652/6361/files/nefaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/wedamizafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1093/0341/files/algebra_high_school_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1013/8017/files/nekuxiwefopujegozaxadej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6394/3074/files/62794491560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/dragon_ball_z_dokkan_battle_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2916/8282/files/judadogisowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7539/8821/files/zikenosonanojazarivejemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2641/4743/files/fikurupit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8670/7876/files/velexerisiwenomewuvufiwed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1872/1192/files/sakusiboperomirewo.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 3

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_off0000453a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x453A 5296 bytes
SHA-256: 628d5172ba2378eaf81150eacf141f83f7b71e54e899314055117a6a773c8852
font_01_sfnt_off00005732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5732 8736 bytes
SHA-256: 3db573a48100d5c5fcd1a93524c919219eb5c60163396cf2eabf9b4d60a557a6

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