Malicious PDF — malware analysis report

Static analysis result for SHA-256 1715e60f30d479e3…

MALICIOUS

PDF

46.5 KB Created: 2020-08-18 20:33:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8532baad25091e33e4cb98c64fcec925 SHA-1: 640f742004af08497963cffef30649a9542d4058 SHA-256: 1715e60f30d479e3c0f3aa1743cf34cad0f149b0bd1c8525aaf094db049ef663
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL that is known to host malicious content, disguised as a search result for 'Bstc result 2018 rajasthan'. The document body also contains this lure text and the malicious redirector URL. The presence of numerous external links, many pointing to Shopify domains, suggests an attempt to create SEO spam or a phishing lure. No scripts were extracted, but the PDF structure and embedded links indicate a redirection-based attack.

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=bstc+result+2018+rajasthan In PDF document text
    • http://files.zhugenyang.com/uploads/1/3/1/4/131438471/raxupapenijum.pdfIn PDF document text
    • http://files.johnknoxhouston.org/uploads/1/3/1/8/131856664/a1234c.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/1/0430/7674/7413/files/absceso_en_la_cara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7078/2614/files/software_quality_assurance_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/3298920869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6289/3471/files/lomipofurunoxarajuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/9141/5460/files/kudim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6971/9196/files/girozisezukixaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4522/2557/files/classic_wow_lucky_charm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/55085327349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3246/8890/files/35437569893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/rodexubugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1060/2661/files/butas.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 5

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_off000072a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72A4 5532 bytes
SHA-256: 9d0ab8d9f0a60ddc7f9cc8dba137d94179e121a174f1de1987b8497cf001e18b
font_01_sfnt_off0000856e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856E 12556 bytes
SHA-256: e867cdda106aaa9d76a8541d39d183f46e296c3d3c10e73501430fbfe13bd220

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