Malicious PDF — malware analysis report

Static analysis result for SHA-256 322e7dd353876a57…

MALICIOUS

PDF

41.7 KB Created: 2020-08-07 04:46:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67c88193841b50da11d08650e434d1f3 SHA-1: 72334242c80d9678d5bdf3006e47e0a0d84d2be6 SHA-256: 322e7dd353876a57588e7e53a80ce4c9d515710c6dbf0434462e036c39c0b6fe
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to domains associated with link farms and redirectors. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is presented within the document body as a "CCNA Routing and Switching" guide. This suggests a social engineering attempt to direct users to malicious infrastructure. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm strategy, likely to improve search engine ranking for malicious content or to obscure the ultimate destination.

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=pdf+ccna+routing+and+switching+200+125+official+cert+guide+library In PDF document text
    • http://bujuzuf.thedetailors.com/uploads/1/3/0/9/130969754/lovuwa.pdfIn PDF document text
    • http://files.linemantrainer.com/uploads/1/3/1/3/131381612/wojitu_kazubapi_ledokakikimol.pdfIn PDF document text
    • http://files.skipscards.com/uploads/1/3/0/8/130874050/f0a113.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/1/0431/8255/5300/files/frost_mage_best_in_slot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/felojunog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8103/1061/files/16733481263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2852/4701/files/pdf_to_word_free_from_nitro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53522836856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41697505155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/75576765324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/bolly_songs_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/96924929036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7233/1682/files/definicion_de_antivalores.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 6

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_off00005cf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF1 6068 bytes
SHA-256: d1e4fef20d576f39f9fb38be16625e84e2077f8cc0ae5a816a334c1163545ffc
font_01_sfnt_off000071ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AE 11040 bytes
SHA-256: 8b565b84b15064c397db99963489a458edb7a0cb5075eccfb3bc11eb2622ee78

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