Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c2277708004c3ba…

MALICIOUS

PDF

47.9 KB Created: 2020-08-19 01:02:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c02892d6958c4c87a5619863fe928bc1 SHA-1: 9bd6dc99b66515860032cbb59e7acc76962e127a SHA-256: 7c2277708004c3bac474274402b2650db77432bb0886f8bdda7116525da703a7
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a redirector service identified as malicious. The document body, though partially corrupted, suggests a lure related to 'how a rattlesnake's rattle is formed', likely to entice users to click the embedded links. The presence of a malicious redirector and a large number of external links indicates a probable phishing or SEO manipulation campaign.

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=como+se+forma+o+chocalho+da+cascavel In PDF document text
    • http://kuxugixe.igottees.com/uploads/1/3/0/7/130740522/pelit-vawifafe.pdfIn PDF document text
    • http://files.greenvillewesley.org/uploads/1/3/2/8/132814302/rorisixumolet_lujaxofutite_guguj.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/1/0438/4607/4525/files/lapekikuguvatujeropepini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8553/7175/files/96119953255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1771/4334/files/bernie_sanders_medicare_for_all_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4784/5030/files/balanopostitis_tratamiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/laxigitifudavizemitipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/excel_sheet_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/ios_for_macbook_pro_2010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/free_a4_brochure_template_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6562/9077/files/sogusetapivarelixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7675/4344/files/bazajumobunidival.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0140/4830/files/70965880418.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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
stream_005_off00009310.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9310 18512 bytes
SHA-256: 35279ec1f258b4812c2cb59cb7e70f54800ca6e47e72a3a6888e4bc86ccec92b
font_00_sfnt_off00005c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C02 5224 bytes
SHA-256: ffd1d5e34448bf0dc0f02af54aa6e40005da37c80366f428728114f40d074e70
font_01_sfnt_off00006da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA7 12100 bytes
SHA-256: 165ae5baf0798f6446e3b4a28c8a96ee6c5c40f235a77ab99841276533433ae5

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