MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector URL associated with malicious activity. The document body, though heavily obfuscated, contains the primary redirector URL and several other PDF download links, suggesting a phishing or scam attempt to distribute further malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=basics+of+computer+hardware+and+networking+pdf In PDF document text
- http://files.stpaulspreschool.net/uploads/1/3/1/1/131164132/fc734533744d01.pdfIn PDF document text
- http://files.xenastrategies.com/uploads/1/3/2/6/132682623/guraguzos_daterigaveman_belutibolafik_wijemu.pdfIn PDF document text
- http://files.malcolmcounseling.com/uploads/1/3/1/6/131606603/5215416.pdfIn PDF document text
- http://files.countryblastradio.com/uploads/1/3/0/9/130970014/rovikepax-dunazubobof.pdfIn PDF document text
- http://files.manekrush.org/uploads/1/3/2/6/132682070/1823248.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/1010/5255/files/67935376092.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7631/2471/files/zutofobeno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7637/1110/files/although_vs_despite.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9726/7112/files/dafalomidavabakurepok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1117/7629/files/xamunu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3972/7509/files/mario_brothers_ps3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2356/4957/files/48582119.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6999/7217/files/90459736879.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/1295/1961/files/edge_of_the_empire_core_rulebook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8577/4491/files/gupigamimoruvawefi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3192/8730/files/37084586532.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9495/0556/files/1524891576.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9836/5340/files/19069935804.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7386/3842/files/41927228069.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1671/6437/files/11718859810.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006ed5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ED5 | 5624 bytes |
SHA-256: 5950c23f59166880cfaf8857ddb80d13c0d9726888da9a2df41547ea92aa6aca |
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font_01_sfnt_off000081db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81DB | 10340 bytes |
SHA-256: de40c03439e461e667cf64004a6d60fb713acf399757199ae2f43d9262f57675 |
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font_02_sfnt_off0000a53d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA53D | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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