Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dabd18b3c99bf8d…

MALICIOUS

PDF

35.3 KB Created: 2020-08-13 21:26:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7efd381ff34c8839fecb714fca230bd SHA-1: 1a058e13d0e69764742cd1e2b7453bb60e58d565 SHA-256: 6dabd18b3c99bf8dce51a92eff78abc497b61eb0f5dc71c253697016bdb2d2b2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to SEO-optimized redirectors, suggesting a phishing or scam attempt. The primary redirector URL, 'https://ttraff.com/pify?keyword=chicco+beside+me+crib+sheets', is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other links to PDF files, likely part of a link farm designed to lure users with deceptive content. The ML classifier also strongly indicated 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=chicco+beside+me+crib+sheets In PDF document text
    • http://ripok.cubbingtonandleekwootton.net/uploads/1/3/1/4/131437736/bofej_ganubisotuzoke.pdfIn PDF document text
    • http://fofawuja.sanantonioguardianangels.com/uploads/1/3/0/9/130969439/nanutoxeten.pdfIn PDF document text
    • http://lilasirut.stepschristianacademy.com/uploads/1/3/1/8/131871980/b0abbe7de2.pdfIn PDF document text
    • http://files.crossdepot.net/uploads/1/3/1/0/131071056/8287851.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/1/0437/1690/3080/files/47965569203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4855/0050/files/jizejafekijimawili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/zukag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/aquacultural_engineering.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/64132548054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/vupexudolizagenebolizewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1959/2102/files/rebefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9943/7721/files/gonujekufamep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/makalah_asia_tenggara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3317/2885/files/central_park_guillaume_musso_chomikuj.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_off00004bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BFD 4984 bytes
SHA-256: c7210f67c35b0f6b79846fa8a5128880918fa86290218e05858e462679f22b05
font_01_sfnt_off00005cc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC0 10500 bytes
SHA-256: 5a259a2774affaaa11779129ff29a061f5ff7ffc24f2a939190df1df1c6aaef2

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