Malicious PDF — malware analysis report

Static analysis result for SHA-256 17bc010c1b1138b8…

MALICIOUS

PDF

39.0 KB Created: 2020-08-03 03:10:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5937d0c831d0032ac0ac08d5f21808bd SHA-1: f84f8092f4105b1aed3c0798b42442a968e629aa SHA-256: 17bc010c1b1138b850dc4134163ba3127d2ddb2a2542ee062a4a7dafda5822f9
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector infrastructure identified as malicious. The document body, though garbled, includes keywords like 'Asp.net crystal report tutorial pdf' and a URL that appears to be part of a link farm designed to attract search engine traffic. This suggests the PDF is used to distribute malicious content or phish for credentials.

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/wb?keyword=asp.net%20crystal%20report%20tutorial%20pdf In PDF document text
    • http://files.themoveablechurch.org/uploads/1/3/0/8/130874128/9175303.pdfIn PDF document text
    • http://files.seraphimschool.com/uploads/1/3/1/6/131636654/3512908.pdfIn PDF document text
    • http://files.cuestacollegerodeo.com/uploads/1/3/1/4/131483550/f518ae417.pdfIn PDF document text
    • http://files.ancpwa.org/uploads/1/3/1/3/131380547/pukegu_libimelepusil_wixowasabegox.pdfIn PDF document text
    • http://files.zaidmoving.com/uploads/1/3/1/4/131407469/2499960.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/1/0429/9682/6273/files/zubiworagezetuzemeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/72402895052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4823/0297/files/gigi_d_agostino_ill_fly_with_you.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0890/0772/files/guriza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mufuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7085/7124/files/rilupageserag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/humulin_r_500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3269/1363/files/xikevopigazoduvatazegad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9671/6952/files/86346857186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9307/2808/files/2012_audi_a7_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4158/6332/files/65857693777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2806/2109/files/rolling_eyes_emoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8099/1388/files/jailbreak_os_5._1._1.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 8

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_off00005a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A77 5272 bytes
SHA-256: c85292efb86c8b9c5ee6181543a0d0053eede3d2c5cd9757bbe65f4623ee24ac
font_01_sfnt_off00006c85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C85 10112 bytes
SHA-256: 2f83ba76a5dfba2777894d642b68d230cb32df7a5bfdb77258d081962d8c3825

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