Malicious PDF — malware analysis report

Static analysis result for SHA-256 c908c7b6037a5d66…

MALICIOUS

PDF

35.2 KB Created: 2020-08-10 03:44:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 87a0c083b8894dc4aba22a57691b0ff7 SHA-1: 41e85a4aaa97f68e835774d434567ce5a1b6fdce SHA-256: c908c7b6037a5d6665a638d6209ba8adf2a74548864145e619deff304b5fbfbe
194 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to manipulate search engine results, directing users to a malicious redirector. The document body, though partially corrupted, contains text related to 'automatismos industriales' and a URL that is flagged as a malicious redirector. This indicates a phishing or scam attempt to lure users to malicious sites under the guise of providing a free download.

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=automatismos+industriales+editex+pdf+descargar+gratis In PDF document text
    • http://files.raydogsbatrolling.com/uploads/1/3/0/7/130740464/maluxizokatase.pdfIn PDF document text
    • http://files.petrinka.com/uploads/1/3/1/4/131409200/fejekofijisekugobuna.pdfIn PDF document text
    • http://files.aomskw.com/uploads/1/3/1/8/131856071/8269911.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/1/0437/1320/0282/files/wemoxudunote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/46060962472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/durusibowipeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/34018283442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/rizisalumirifemuxedero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1826/0377/files/sam_seder_net_worth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9906/2426/files/49866388961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6101/0842/files/90631500225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8828/1761/files/88082013807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9354/7426/files/11351649958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/caballo_de_troya_7_descargar_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0663/9779/files/12746174017.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 3

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_off000049de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49DE 5532 bytes
SHA-256: 97ef0591711dcc783720423c5b42b8e741f09efbc4a3209b65a09a1afbe4faa5
font_01_sfnt_off00005c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9B 10164 bytes
SHA-256: dca9b15c8f9285184d5f5a0786608e5172b9cd9172e0bebce6bb919422e03672

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