MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document contains numerous links, many of which point to a redirector infrastructure associated with malicious activity. The document body text, though partially obfuscated, includes "Kronos electronic timesheets" and references to wkhtmltopdf, suggesting a lure for phishing or a scam. The presence of a mass external PDF link farm and redirector links indicates an attempt to distribute further malicious content or lead users to fraudulent sites.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=kronos+electronic+timesheets In PDF document text
- http://files.beulahcenex.com/uploads/1/3/1/3/131384567/42739865abdef.pdfIn PDF document text
- http://zavurawen.meetthemessenger.com/uploads/1/3/2/3/132303195/66ed9c3f3745ab1.pdfIn PDF document text
- http://vamipajit.mericakaydesign.com/uploads/1/3/2/6/132681504/5440915.pdfIn PDF document text
- http://files.barbaradunn.com/uploads/1/3/1/4/131437380/029d65630.pdfIn PDF document text
- http://files.privatecounsellingandmediation.com/uploads/1/3/0/9/130969184/cea1c53.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/1/0434/0665/5642/files/98700269424.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8684/7903/files/ravimugomajo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2306/4488/files/nielit_ccc_application_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5665/9621/files/puxorenuxonupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0702/5056/files/97825764457.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7567/4012/files/ailing_planet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0458/3318/files/matebugaguwezunakajofaza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7179/8424/files/xudolemudewanukamuki.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/3551/2232/files/38828587517.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6671/0429/files/cambridge_primary_science_worksheets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/0882/3193/files/adjetivos_demostrativos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2794/6904/files/bumamozerutonidepu.pdfIn PDF document text
- https://lifewithoutbarriers60.sharepoint.com/siIn 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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006c8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C8C | 4800 bytes |
SHA-256: ef3af89c5a8d4d784cc804c27f24d1baac870a91acd7e02b66a3dc06c853e334 |
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font_01_sfnt_off00007caf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CAF | 10572 bytes |
SHA-256: 34078f554936638935fc83f39e4e3f2d9a4af73e88644e17ad508b2e15d6d9d2 |
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