Malicious PDF — malware analysis report

Static analysis result for SHA-256 862d4db9566d8886…

MALICIOUS

PDF

53.8 KB Created: 2020-08-02 21:09:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 527e24e00ffffc4373b1c9b84ab2d61e SHA-1: 11b475a41a97dab5ece161ef4569fbf30e9b790b SHA-256: 862d4db9566d88865c92c5b8a3efb069208cd1a98a7e9919d4ccb00addabd0d9
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to redirector infrastructure like 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=what+is+macroing' and a list of PDF links, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the presence of redirector links points to an attempt to lead the user to a malicious site.

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=what+is+macroing In PDF document text
    • http://files.gigikentwellness.org/uploads/1/3/1/3/131398117/8797277.pdfIn PDF document text
    • http://files.stealthentertainment.net/uploads/1/3/2/6/132682030/zedipibabuguvinogiri.pdfIn PDF document text
    • http://files.rlighthouse.com/uploads/1/3/1/3/131379174/remidakoluwavam-vufiw.pdfIn PDF document text
    • http://files.ancestorsfromvoss.com/uploads/1/3/0/8/130873715/7851958.pdfIn PDF document text
    • http://files.hopeak.org/uploads/1/3/0/7/130775628/2901537.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/1/0437/9151/5797/files/xopewik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/mimivapifixifiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1932/2022/files/26745420586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7474/0636/files/tisugowemosimasew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0006/0310/files/57977014811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7759/9383/files/budalujoporisutizagirome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/49697769753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/2380780655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4868/8033/files/kugalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/witcher_3_unification_patch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83971047952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/davunaxejapezuxipuwuwozom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5553/8595/files/kujubafoxu.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_off000095b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95B2 5192 bytes
SHA-256: be2919d603ce1547dfe4fe9988b1225dd3decc5052623f77a7f99588ad62c62e
font_01_sfnt_off0000a73f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA73F 10340 bytes
SHA-256: 41b9d4809ba2e6f098a63774a049b2ee8af0510fa01ab97f0a97a8b00c17070a

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