MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially obfuscated, contains text related to 'adding and subtracting polynomials examples with answers', likely a lure to disguise the malicious intent. The primary attack pattern involves redirecting the user to malicious infrastructure via the embedded link.
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.cc/pify?keyword=adding+and+subtracting+polynomials+examples+with+answers In PDF document text
- http://liwevi.daniellerosephotography.com/uploads/1/3/0/8/130814448/2033953.pdfIn PDF document text
- http://files.sarahthurstensondesign.com/uploads/1/3/1/4/131407692/xavejosur.pdfIn PDF document text
- http://files.everythingipromisedyouisbeingsold.com/uploads/1/3/1/6/131607544/e9bb6e4ddfe2ef.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/1/0438/3450/7426/files/53972195034.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2135/3635/files/vojutejerifofomutamola.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4047/2214/files/45398819109.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4751/7341/files/90753552317.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1402/8450/files/59804488336.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6991/5814/files/banefedoregove.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0459/9155/9327/files/exponential_equations_inequalities_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3220/5722/files/encyclopedia_of_philosophy_volume_7.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1540/4711/files/quraner_alo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1682/1672/files/56753745036.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4959/9654/files/calendario_serie_b_2020_20.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0937/5397/files/74923443193.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005a44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A44 | 5880 bytes |
SHA-256: c2c6c79afe3de273335d04b1d34c1bbef0ededc4d8fe359b5404258a8c8b00e5 |
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font_01_sfnt_off00006e20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E20 | 9880 bytes |
SHA-256: a25ac1952994f637f164d42006b01f99e04c637885c9e79b69d1392b75a9915a |
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