Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6fe20586a1263b…

MALICIOUS

PDF

45.7 KB Created: 2020-08-12 08:49:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 22df78dde69518d02ad8fdf8e12698e8 SHA-1: 2cfbe798d044043743fae7f8ad986b6ac749e16a SHA-256: ce6fe20586a1263b0aecfdaad280a7d0e347ac11f7627ca0650d29244a3d6bda
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.cc', which is flagged as malicious. It also exhibits characteristics of a link farm, with numerous embedded URLs. The ML classifier strongly indicates maliciousness. The document body contains the suspicious URL and text related to academic materials, suggesting a lure to entice clicks.

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=cengage+chemistry+pdf+neet In PDF document text
    • http://files.tjremaley.com/uploads/1/3/1/8/131856146/sakotokikutudo_medufodimusuke_pukuva.pdfIn PDF document text
    • http://files.khunterart.com/uploads/1/3/1/3/131383434/5775590.pdfIn PDF document text
    • http://files.miaheintzelman.com/uploads/1/3/1/3/131398236/2322189.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/1/0434/0151/1068/files/gigidatijugopiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5728/7061/files/ableitung_e_funktion_aufgaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5956/9055/files/64679816007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6264/7189/files/98938402984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2371/8805/files/91276512656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5031/9528/files/86879125647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4750/9416/files/sobuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5072/1699/files/57604293058.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5934/7618/files/ludaxagegilof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4042/files/cours_anatomie_appareil_gnital_fminin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5946/8701/files/sekiwow.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_off00007321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7321 5544 bytes
SHA-256: 6a56dd965c8a2a286f2943753e79e5057a23cb8cbdcc4ca209cb1d080d4f8e4c
font_01_sfnt_off000085d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D6 10536 bytes
SHA-256: 2c35c16bcf31a09abbefa7ec6e349a1e0dcb7292f002c433623e3ac5c2e99ff1

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