Malicious PDF — malware analysis report

Static analysis result for SHA-256 00fbef0d51926f14…

MALICIOUS

PDF

40.9 KB Created: 2020-07-29 22:11:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4510e3608ac2ef3e54f8a5c0fc874fd SHA-1: 71a36f56d6cc9799b29c5f6e5338e925dd539db9 SHA-256: 00fbef0d51926f14aef69db44e773b8dd6e32532badd5e7b98c45ba1dfd705b9
194 Risk Score

Malware Insights

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

This PDF file leverages a link farm and SEO redirector to masquerade as a free educational resource, specifically a "Mathematics today grade 7 learners book pdf". The primary malicious URL, https://ttraff.ru/pify?keyword=mathematics+today+grade+7+learners+book+pdf, is identified as a redirector. The ML classifier strongly indicates maliciousness, and the presence of numerous embedded links points to a phishing or scam attempt.

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=mathematics+today+grade+7+learners+book+pdf In PDF document text
    • http://files.doulasinatlanta.com/uploads/1/3/1/4/131453355/7ade6.pdfIn PDF document text
    • http://files.marmascairnterriers.com/uploads/1/3/0/7/130740412/fijiw-jipodusudat-surifa.pdfIn PDF document text
    • http://files.restyledlife.com/uploads/1/3/1/4/131438439/72bad43b8168c.pdfIn PDF document text
    • http://files.arhstyles.com/uploads/1/3/0/7/130740189/183326.pdfIn PDF document text
    • http://files.carolinamountainreefs.com/uploads/1/3/2/8/132814306/lanuzibizenub_pimulu_motazosapijulek_jazidodirul.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/1/0429/5720/9766/files/6022395562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6540/8662/files/68347373932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6405/7247/files/46436225489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3531/9711/files/76836841526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/50464963078.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2791/files/zamasalufapovobajipatuzox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/17888052570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6081/3208/files/bedudaloromogad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9274/5117/files/20612112741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5823/2473/files/zetidorogubifomabibenuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0221/5074/files/3007071960.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_off000060e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E6 5748 bytes
SHA-256: ff1630cdcf6ceeecc4d91c9d9c4195a4b820b48f032a6d2edf42d725160a3aa7
font_01_sfnt_off00007463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7463 9796 bytes
SHA-256: 5efe924e0ff87bc490f03ca432a238816e6565ed196bb5e656cc37541d346be0

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