Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d37a14a8ea247ee…

MALICIOUS

PDF

39.7 KB Created: 2020-08-08 16:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b610b142835ecfae53d64961bd8f2c3c SHA-1: 1014b905e66b032f6cfb8c78fac6a490f4e4f560 SHA-256: 5d37a14a8ea247ee6bcf0b14933bbc22b69d93ba33c0b1f6ecfdd189eeb01793
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service designed to obscure the final malicious destination. The primary redirector URL is https://ttraff.ru/pify?keyword=cutting+edge+advanced+3rd+edition+pdf, which is associated with malicious activity. The document body and heuristics indicate a tactic of using a lure (e.g., 'cutting edge advanced 3rd edition pdf') to encourage users to click on these links, likely leading to further compromise.

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.ru/pify?keyword=cutting+edge+advanced+3rd+edition+pdf In PDF document text
    • http://files.alone-together.org/uploads/1/3/2/6/132681625/9016287.pdfIn PDF document text
    • http://files.bouncyparadeboxers.com/uploads/1/3/1/4/131453177/tijomovexak_dulekav_lupajegazem.pdfIn PDF document text
    • http://files.citytaper.com/uploads/1/3/2/7/132710795/mokonimubiresi_nawur_loxinonuxur.pdfIn PDF document text
    • http://files.pamelabowers.com/uploads/1/3/1/1/131164431/kutejuwolozelozosuz.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/1/0438/9689/7704/files/luxiji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/memifumijavibafavufexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/legubolowowimibekile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7230/5817/files/wifeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4620/7650/files/38594430948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7352/3112/files/behavioral_economics_introduction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8187/5104/files/41703102824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9857/8848/files/deteriguneboxonobojife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3127/2351/files/xewovowunegazir.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 5

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_off00005c18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C18 5244 bytes
SHA-256: f905eecd00f02bb9781e77fc508f12aa8f0326e6cfef25567963aa1ed3263f1f
font_01_sfnt_off00006e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0B 10516 bytes
SHA-256: 388bbbd239d9cd11fec08345654b3c55f6868296fb4208c39116dad7bed81e0c

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