Malicious PDF — malware analysis report

Static analysis result for SHA-256 c60c4571676db07f…

MALICIOUS

PDF

39.7 KB Created: 2020-08-23 05:49:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f92b815354aece13def145b71aed678e SHA-1: f5627008045b62d20a6e3cc50cedda38da249cff SHA-256: c60c4571676db07f2e85255a54ef0f75ce2885e796fd2bdb62a52d8306ea272b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links that lead to a malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a 'Toyota avensis 2012 service manual' and the malicious URL, suggesting a lure to trick users into clicking the link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many hosted on Shopify, which are likely part of a link farm to improve search engine ranking for malicious content. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this PDF.

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.cc/pify?keyword=toyota+avensis+2012+service+manual In PDF document text
    • http://gafik.thommcmanusphoto.com/uploads/1/3/0/9/130969723/kuwovexenini.pdfIn PDF document text
    • http://files.blanchairstudio.com/uploads/1/3/0/7/130740072/9322379.pdfIn PDF document text
    • http://kigitoka.icaisfo.org/uploads/1/3/1/4/131437812/detidibo.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/1/0428/0378/9991/files/16551582430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nalekubaserigudopen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8876/3298/files/23331986811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/ssat_lower_level_practice_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2511/2988/files/65528491918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9877/6487/files/99591964021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8778/2297/files/4272103693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6367/0939/files/canon_ip7200_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1624/0807/files/37215033854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6634/3072/files/80155606875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5792/9621/files/93719688604.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 2

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_off00005d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D79 5380 bytes
SHA-256: 8c433aa6769e41103d291ba0f056b7dc82217e59455e816cf2e6621139946cb4
font_01_sfnt_off00006fbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FBF 10140 bytes
SHA-256: 458fd2504a6275bdddb0b920ebc1224aefef4820524720687ab94369dc8a8afc

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