MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lead users to further malicious content. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs, suggesting an attempt to manipulate search engine rankings or distribute spam. The ML classifier strongly indicates malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=difference+between+bioavailability+and+bioequivalence+pdf
- http://vetuto.peter-m-acland-foundation.org/uploads/1/3/1/4/131482995/tunarubi-kunagomodipa-xijep-ratawijufexo.pdf
- http://files.ftscwomensindoorcup.com/uploads/1/3/1/4/131407818/16f7a8.pdf
- http://fikirop.bayareabreastfeedingsupport.com/uploads/1/3/1/4/131483281/6620e60c4a7b23.pdf
- http://dezekexo.codergals.org/uploads/1/3/1/4/131406390/f9f826ec4c.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/0799/1208/files/96287470137.pdf
- https://cdn.shopify.com/s/files/1/0438/1632/1184/files/260631849.pdf
- https://cdn.shopify.com/s/files/1/0433/6176/3480/files/44402067825.pdf
- https://cdn.shopify.com/s/files/1/0433/6880/8613/files/xajijekebidepokose.pdf
- https://cdn.shopify.com/s/files/1/0438/0708/0610/files/75806684165.pdf
- https://cdn.shopify.com/s/files/1/0429/3686/0839/files/94172055840.pdf
- https://cdn.shopify.com/s/files/1/0429/9866/1279/files/zubipodib.pdf
- https://cdn.shopify.com/s/files/1/0429/2925/8649/files/diet_plan_for_fat_loss.pdf
- https://cdn.shopify.com/s/files/1/0431/3815/4653/files/practice_present_simple.pdf
- https://cdn.shopify.com/s/files/1/0437/5802/6903/files/8278798081.pdf
- https://cdn.shopify.com/s/files/1/0430/2051/7537/files/holy_grail_rs3.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c72e.bin90b4a5dbceefdabbc5ec6b1315e608a779aabf00e75f6c88e4f24927b51c37fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC72E | 5492 bytes |
font_01_sfnt_off0000da09.bin25bafe29f91c913ec578d4b89e3227f2c43bbc1044319cf0ef1e8abb0929fcc7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA09 | 10144 bytes |
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