Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5e7aa7cd3165653…

MALICIOUS

PDF

44.2 KB Created: 2020-08-25 10:49:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b8456a02dace7bb31f9547212bb61470 SHA-1: e5fd5e7445c0b2823db53e7dbaea70bc7bb7d4f7 SHA-256: f5e7aa7cd3165653cc4ddf8d693a73b2fd94c870a7cd2a2545a634995e0ca11a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, with at least one identified as a malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a large number of external PDF links, suggesting an attempt to manipulate search engine results or distribute content widely. The primary malicious URL identified is https://ttraff.ru/pify?keyword=educators+financial+group+forms, which is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and other Shopify-hosted PDF links, reinforcing the link-based attack vector.

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=educators+financial+group+forms In PDF document text
    • http://files.kdsgiftboutique.com/uploads/1/3/1/6/131636855/sabezagivi.pdfIn PDF document text
    • http://nagagi.digitaltogrow.com/uploads/1/3/0/7/130739835/a2484.pdfIn PDF document text
    • http://files.carollongpottery.com/uploads/1/3/0/7/130776200/nexobirovo.pdfIn PDF document text
    • http://files.whitneykimpton.com/uploads/1/3/1/4/131438639/9369832.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/1/0431/7682/0890/files/slope_intercept_form_solving_for_b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/1116/2531/files/alvida_alvida_full_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7478/1338/files/46251210109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7183/6055/files/al_final_del_arcoiris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2092/2528/files/house_rent_agreement_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/5178/0005/files/catheterization_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0011/7928/files/escala_de_glasgow_blatchford.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4216/9244/files/zapinajegevozojoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6009/1287/files/soxenadeguwixobuwiwilugub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5370/9472/files/nedibafijewogiwudubow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3809/7051/files/8068683552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3591/7464/files/telugu_abhisarika.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 7

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_off00006e57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E57 5432 bytes
SHA-256: 895c83837188acf0edc92ba8b4e600157d04788e696914e83a2d31dd75cf51fa
font_01_sfnt_off000080bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BC 10280 bytes
SHA-256: 9376c322a43e71fc051450bc68a0177185ba4d0147744ec0248f363f058796c8

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