Malicious PDF — malware analysis report

Static analysis result for SHA-256 190e9be518063a9e…

MALICIOUS

PDF

37.6 KB Created: 2020-08-16 12:48:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d36a3a84bc05a493e6c1986692db1f54 SHA-1: fea8b6a8e8c0eb66a033cacb4ed3ef8a3c7a9a49 SHA-256: 190e9be518063a9e0fbd73900b114beb73fd2585073d390cfece80ec094ba5be
194 Risk Score

Malware Insights

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

The PDF contains embedded URLs that redirect to a malicious domain, masquerading as a download for a Serato DDJ SX manual. The ML classifier strongly indicates maliciousness, and the PDF structure suggests it's part of a link farm designed for SEO manipulation to lure victims. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/wb?keyword=serato%20ddj%20sx%20manual In PDF document text
    • http://kupirip.crossplainspd.org/uploads/1/3/1/6/131606490/9782000.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/1/0431/2567/0037/files/416351594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/autocad_import_text_recognition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82191842179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1076/8546/files/59345911839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8970/5625/files/siremuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1384/7710/files/tabubegovijevekoram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5738/1530/files/cetosis_en_vacas_lecheras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0655/6320/files/90937017891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/xarenugilaxezuzobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7895/9775/files/vemaveridureneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6309/6984/files/beworawuzuwixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3326/3253/files/jupoxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0390/7993/files/wuvubidarat.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4917 5052 bytes
SHA-256: 25705bde1915232026996570971835e1f5b067934c6ef1574ae2b784afe35dda
font_01_sfnt_off00005a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A2D 9868 bytes
SHA-256: ecb60d7eaeb6378954239ac06c91a1f843ab2ff36323e0ee5d2c2bd91203760f
font_02_sfnt_off00007bf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF2 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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