MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass external link farm, with a primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL and references a PDF about equations, suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly supports the malicious verdict.
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.cc/pify?keyword=einfache+gleichungen+mit+l%25C3%25B6sungen+pdf In PDF document text
- http://files.fcdetail.com/uploads/1/3/1/3/131381067/27f7879d166.pdfIn PDF document text
- http://files.heartofachildministries.org/uploads/1/3/2/7/132712447/e7a59137c8ce5a.pdfIn PDF document text
- http://files.billinghurstorchestras.org/uploads/1/3/1/4/131407357/03772a75e78b.pdfIn PDF document text
- http://files.reentrylegalclinic.org/uploads/1/3/1/0/131071019/mukoratadojox_zavurado_peges_kakadujotulud.pdfIn PDF document text
- http://files.entotofoundation.org/uploads/1/3/2/6/132680796/a0efe9b.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/1/0433/0523/8692/files/44578511866.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6678/5949/files/nidamuwujogow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7447/7464/files/14778043478.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4107/1016/files/suviwas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7111/1330/files/10928331437.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1760/0152/files/85435629373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7866/4867/files/ssa-_3441-_bk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7540/3936/files/puzokowuje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0827/0244/files/judepe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7750/0056/files/tipos_de_actuadores_automotrices.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6284/4837/files/bsc_2nd_year_inorganic_chemistry_notes_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9338/4599/files/manevoresorakevigerokiwes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7233/1682/files/vanaspati_vigyan_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4814/0949/files/gejinimenitolosuvugule.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5893/6473/files/what_is_the_max_width_for_mobile.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000759a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x759A | 5568 bytes |
SHA-256: 2cd46fab7b0a3fe2153080b73e8904c2967ef9b1389c540368f0345c6676d741 |
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font_01_sfnt_off0000882e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x882E | 12960 bytes |
SHA-256: 8f368d2fc7d5d66af1ea51c9c921017b3c330b50cc7fc985e270b40dab2b93a3 |
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font_02_sfnt_off0000b284.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB284 | 16060 bytes |
SHA-256: eccb4a4e23ec17ef3ae34a7e59b2b3ca0bade477786653c37f50dbc176102729 |
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