MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF document contains numerous links, including one pointing to a known malicious redirector. The document body text is heavily obfuscated, but the presence of embedded URLs and the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic indicate a phishing or redirection attempt. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document may be intended to trick the user into downloading a password-protected archive, likely containing a secondary payload.
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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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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/wb?keyword=physical%20science%20college%20textbook%20pdf In PDF document text
- http://files.jezawilliams.com/uploads/1/3/1/3/131398515/kepatapi_pijuluzute_migemibatof_wowesuretunaj.pdfIn PDF document text
- http://files.alzglassandiron.com/uploads/1/3/1/6/131606638/6729171.pdfIn PDF document text
- http://files.marinapo.com/uploads/1/3/1/3/131378821/7aa1c9ddd44b.pdfIn PDF document text
- http://files.sterritup.com/uploads/1/3/1/4/131406303/memepeg.pdfIn PDF document text
- http://files.mariachristinepericozzi.com/uploads/1/3/1/3/131384024/zivexirerune.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/1/0432/3885/0724/files/xodopasedusagapo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74133662670.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30106301206.pdfIn PDF document text
- https://nobijip.files.wordpress.com/2020/07/25507757702.pdfIn PDF document text
- https://zeluvabumi.files.wordpress.com/2020/06/27214930113.pdfIn PDF document text
- https://vorelav760549551.files.wordpress.com/2020/06/tozovidupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5949/4555/files/34600748018.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0441/9478/files/76894218414.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27247465441.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2853/7753/files/rapapusesexonafe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2469/4942/files/jamuperedijoza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5226/9717/files/17339214188.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8215/3112/files/42081336269.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5725/9420/files/pafojatipapoliratafeli.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_off0000a99c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA99C | 5484 bytes |
SHA-256: c2f710ff6f67625ad4e470f8240e2485c4571274598232dfaded15b3e95e8e7a |
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font_01_sfnt_off0000bc3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC3B | 10252 bytes |
SHA-256: 42ef6186b1860d011f8c03995fddd1cc14ca0cfd9bc9a2c1f83eae9003d5eb9d |
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