Malicious PDF — malware analysis report

Static analysis result for SHA-256 8820e9df633183c8…

MALICIOUS

PDF

46.1 KB Created: 2020-07-27 16:59:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bcdc6c4ae89218dbc8350dbfda96e548 SHA-1: 7064b4af9eecff1a79f237ae80938eeb9f3ccf07 SHA-256: 8820e9df633183c86ccc55c681ea7b12d3c3ec63f1b4d35a98494591e3d2b322
194 Risk Score

Malware Insights

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

The PDF contains a lure referencing a 'school of nursing form' and embeds numerous links, many pointing to a redirector service. The primary redirector URL, 'https://ttraff.cc/pify?keyword=is+form+for+school+of+nursing+out', is flagged as malicious. This suggests the document is designed to trick users into clicking malicious links, likely for phishing or malware distribution.

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=is+form+for+school+of+nursing+out In PDF document text
    • http://files.charliebreckenridge.com/uploads/1/3/1/4/131437493/d723e9.pdfIn PDF document text
    • http://files.affinitybodyworks.com/uploads/1/3/1/6/131636814/d244cf369.pdfIn PDF document text
    • http://files.fortheloveofapet.com/uploads/1/3/0/7/130739835/b62c20561.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/1/0434/6249/2313/files/75571280720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/xipumekopojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78539107281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2156/5078/files/metili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3292/8671/files/niwepeberobafevale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/gijerolik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8537/3333/files/78205460191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1058/7800/files/41321552608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/wekitugalile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/pumor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7562/4350/files/kapozekirevegesigeworoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/gebimirupepelirujejewi.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_off00007813.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7813 4788 bytes
SHA-256: 497e3d032c9d33b3a178d23de4336684191841c2d165ee3636ef46728d76927c
font_01_sfnt_off00008823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8823 10196 bytes
SHA-256: 5ead2287680a6419ca54c34e5bd2f17194d28715adb73f9a1e27e036da15d876

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