Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e7457edb868f552…

MALICIOUS

PDF

46.9 KB Created: 2020-08-04 20:04:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62126b025728e47463e3c9a6f8383e58 SHA-1: 79e637589f1580c9848f266d2e68deb9834cad53 SHA-256: 0e7457edb868f552a8ab17090e66b62a44464b14453096841e9456c526d33230
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The ML classifier also strongly indicated maliciousness. The primary attack pattern appears to be a link farm designed to lure users into clicking through to potentially harmful content, likely phishing or malware distribution.

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.com/pify?keyword=aprendizaje+significativo+pdf+redalyc In PDF document text
    • http://files.communitycolab.co.uk/uploads/1/3/1/4/131409761/dawejajuno-larajivaka.pdfIn PDF document text
    • http://files.mikesmeatmarket.com/uploads/1/3/0/8/130814515/54c1fe187c75.pdfIn PDF document text
    • http://files.rethinkingeconomics.nl/uploads/1/3/1/1/131164424/23404c8ddad7.pdfIn PDF document text
    • http://files.packerpottery.com/uploads/1/3/1/4/131483098/nituvaxefazuz.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/1/0431/4637/9426/files/95510088811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5918/2745/files/nba_2k13_cheat_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/rakudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/suxejelamenosod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6592/3992/files/32356158265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4244/7261/files/duramagokekoxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mabiwabupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/padizasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5828/2152/files/tour_of_go.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6498/3703/files/lonekoluje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/wimonalazenetugunefutag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8229/3151/files/91138035753.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 6

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_off0000752d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752D 5600 bytes
SHA-256: 8cf1effd6a1e176223fa144706823509f4852b6b2c4261415dc0ef71718d3ae3
font_01_sfnt_off0000886c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x886C 11184 bytes
SHA-256: 1e4ea7b043328131d926ccb673184cb012b6713e4bf1d9cd1e11cb26a45e508b

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