Malicious PDF — malware analysis report

Static analysis result for SHA-256 68f76dbc4c4d283c…

MALICIOUS

PDF

72.7 KB Created: 2020-08-08 20:26:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f2be2ee7f2ba71368f701539c2a9e08e SHA-1: 4563372da056ddc3d54fe2da6f516025a0e9dae9 SHA-256: 68f76dbc4c4d283ca2fdbd732a9721f4ad8552e73ba159d34c06ec6411c4d273
194 Risk Score

Malware Insights

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

The PDF contains numerous links to a redirector URL, identified as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to 'accounting cycle example pdf', likely to entice users to click the malicious links. The presence of many external PDF links further indicates a link farm or SEO manipulation tactic to distribute malicious content.

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.ru/pify?keyword=accounting+cycle+example+pdf In PDF document text
    • http://files.highrollerproshop.com/uploads/1/3/1/4/131453062/0cd363dd.pdfIn PDF document text
    • http://files.13vicesadultboutique.com.au/uploads/1/3/1/4/131453633/fumeweledagoruv.pdfIn PDF document text
    • http://files.hopeawaitsministries.com/uploads/1/3/0/7/130739202/niximomusok.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/1/0430/5548/0981/files/livros_para_aprender_alemao.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1726/3510/files/dudapogerijonuxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6991/4782/files/52977887152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0253/5840/files/jefapumipor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/30557735100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1425/7815/files/hori_rap_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86399573169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9561/1810/files/50635870992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/53593310262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9163/8934/files/ladax.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_off0000df55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF55 5360 bytes
SHA-256: 417535c252223365ac5c41988ed70a1fb3eea8fe7084844f83b6fe765c310913
font_01_sfnt_off0000f199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF199 10776 bytes
SHA-256: f66b6e61abc0e30144988fb1c6ab1df52b354004b41266c42b5f158c9c091f5c

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