Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b627300a75597f…

MALICIOUS

PDF

56.5 KB Created: 2020-09-12 15:20:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3387d8435c2219e4bed441df720e5650 SHA-1: 5d1bbbd84db3a90ba38b70af6089e81aa5fbc02d SHA-256: 05b627300a75597f232faa99ac1a4879010969b63d59001c1800ecfe37c968a3
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded URL `https://ttraff.link/pify?keyword=java+bytebuffer+vs+byte+array+performance` is identified as malicious. The document body, though heavily obfuscated, contains this URL and other links, suggesting the primary goal is to redirect the user to malicious infrastructure. The ML classifier strongly supports the malicious verdict.

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.link/pify?keyword=java+bytebuffer+vs+byte+array+performance In PDF document text
    • http://kabegafod.northvicgps.com/uploads/1/3/0/7/130740117/nuwuz.pdfIn PDF document text
    • http://files.suncoastsoul.com/uploads/1/3/1/3/131379612/baretanemomimu.pdfIn PDF document text
    • http://files.acromios.eu/uploads/1/3/1/3/131383247/runuba-fegipuna-wejuwutu-porutuvojo.pdfIn PDF document text
    • http://files.womensquartermarathon.com/uploads/1/3/1/4/131483153/fonapudonijepirake.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/1/0431/8717/5588/files/bhairava_movie_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0133/0340/files/gemischte_brche_aufgaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6955/4329/files/32271487886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/38770997056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3876/8284/files/35323192547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5037/7120/files/govuboboketeruzarabokiba.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/938c70_628b2bf9264649aaa42d1df984fa85f1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/eed56f_74146dad318c4ad48a3cdb8dbe6cd878.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/f1c748_1d9af75b27d64ceb951abb69107fbfb2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4aae87_05c042ac14ea4d0ebbffc1b49446d1c1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7f929b_210268fb70784dac8cd7251ffbbf2e6c.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 8

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_off00009f56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F56 5420 bytes
SHA-256: bfa2db01543f83c1ba330bac84d8465078a5bf6e4b7be5ecf439973c0a283397
font_01_sfnt_off0000b1c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C7 10288 bytes
SHA-256: e9d92cadf82bbc761ea566ba3f09e6e1f1e47811906b7437519c67df8ce1f7ef

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