Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ce64b8b52e4e55f…

MALICIOUS

PDF

44.0 KB Created: 2020-08-03 14:51:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f75692b0f1d525f07c96c914871a78f SHA-1: f2221228503c811ab0e6c229289a97528f2bc5db SHA-256: 6ce64b8b52e4e55fb9c8b18a396686427b1a8d9dd07bf362554b556e940855ba
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service known for hosting malicious content. The document body, though heavily obfuscated, contains text that appears to be a lure for free PDF downloads, directing users to the malicious URL. The ML classifier strongly indicates maliciousness, and the presence of redirector links suggests an attempt to lead the user to a malicious site for further exploitation.

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=primed+to+perform+free+pdf In PDF document text
    • http://files.ladstravelbible.com/uploads/1/3/1/4/131453214/julokuzoxuda_xipiwolipog_ridagusez.pdfIn PDF document text
    • http://files.araiacademy.com/uploads/1/3/1/6/131606673/povitujoveb.pdfIn PDF document text
    • http://files.fishersproduce.com/uploads/1/3/0/7/130740148/wanomadi.pdfIn PDF document text
    • http://files.counsellingandpsychotherapy.com.au/uploads/1/3/1/4/131406352/9657312.pdfIn PDF document text
    • http://files.lilliemaechocolates.com/uploads/1/3/1/4/131438420/60d4eae93.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/1/0432/9183/6566/files/18190565609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/56325115608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1961/6935/files/98703947721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/2166-_8-_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0785/8072/files/watubazibon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7338/6136/files/jquery_resizing_image.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9751/3381/files/37960792500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/manaxuganopenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8196/5474/files/12003988241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6717/9165/files/kolubudadomotogan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/55903703200.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 4

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_off000070e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E7 4768 bytes
SHA-256: e2464b0503ad201a506a16268dfc89ffdf1f752c68cd7c37e6e341f30ec12a37
font_01_sfnt_off00008107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8107 9988 bytes
SHA-256: 8f31a17d68ce934aefd11d1298cc51fbf56d40468e85dacf42cd8077c8627d73

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