Malicious PDF — malware analysis report

Static analysis result for SHA-256 925e17e2cc15b082…

MALICIOUS

PDF

41.9 KB Created: 2020-08-04 15:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa398cd04d086b277c753a1c4cdc2170 SHA-1: 7af5377be07c1a41a47bab2d059fe3664f9f5419 SHA-256: 925e17e2cc15b0824780b97f245a1112ba787d646ef829d2afaaad854ad1c761
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, includes the same URL, suggesting a lure to external malicious content. The ML classifier strongly indicates malicious intent, and the presence of a link farm further supports a distribution or phishing attack pattern.

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=causas+del+abandono+escolar+en+mexico+pdf In PDF document text
    • http://files.beggslab.com/uploads/1/3/1/3/131383760/xakapemegojawutopulo.pdfIn PDF document text
    • http://files.fortwayneptacouncil.org/uploads/1/3/1/3/131380480/doriresososibozaru.pdfIn PDF document text
    • http://files.capturingmomentsblog.com/uploads/1/3/1/8/131856333/d64fa7.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/1/0432/7338/8190/files/vejapagafobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4069/4684/files/gungeon_gnawed_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4620/7637/files/26274327047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/63058123949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9770/2046/files/96329636313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3646/7612/files/91533656945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5004/files/miller_furnace_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0146/2436/files/gepidefalasurolamusogetin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6647/5164/files/wilutukowiminakomofumub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7750/0057/files/xavemali.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
🗂 Part of campaign: beggslab.com 3 samples

Related samples 4

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_off00006543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6543 5416 bytes
SHA-256: 81245afd95ea96c351106658f4dce918438d80aec475e43eb330bc03d40c0e76
font_01_sfnt_off00007791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7791 10208 bytes
SHA-256: 6b4bc7c3d1927d91d2dd4ebd80f092cd2df085f006089655a3eadf73a43952d1

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