MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a large number of embedded links, suggesting a link farm or a mechanism to distribute malicious content. The ML classifier also strongly indicated maliciousness. The primary IOC is the redirector URL, which likely leads to a malicious payload or phishing page.
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=shunt+capacitor+compensation+pdf
- http://tezujivev.dronesarus.com/uploads/1/3/1/4/131437462/9c26d23.pdf
- http://files.jenndepaola.com/uploads/1/3/1/3/131383586/6474602.pdf
- http://ludavo.twincityphotography.com/uploads/1/3/0/8/130814328/2783753e704d5.pdf
- http://files.recycledreadspa.com/uploads/1/3/1/8/131856646/ffe59937b771.pdf
- http://files.stoneslifecoaching.com/uploads/1/3/0/9/130969399/a46e66f5b0fe0.pdf
- https://cdn.shopify.com/s/files/1/0431/7888/5280/files/29843440160.pdf
- https://cdn.shopify.com/s/files/1/0431/0335/5034/files/toziretodidifumobataw.pdf
- https://cdn.shopify.com/s/files/1/0431/0958/0961/files/arabic_numbers_in_words_1_1000.pdf
- https://cdn.shopify.com/s/files/1/0437/4121/6929/files/pencil_shading_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0435/0833/4744/files/curso_de_ingles_para_iniciantes.pdf
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/lovoxeviw.pdf
- https://cdn.shopify.com/s/files/1/0434/0970/3062/files/37577542638.pdf
- https://cdn.shopify.com/s/files/1/0431/8648/7455/files/58302693725.pdf
- https://cdn.shopify.com/s/files/1/0439/0469/6472/files/campus_placement_aptitude_questions.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rajijabobuzev.pdf
- https://cdn.shopify.com/s/files/1/0451/3264/4505/files/algebra_y_trigonometria_addison_wesley.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006386.binf4d317e299d13c4a94126393560fc7625b63a0be75c91aad3a2e683c9034da51 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6386 | 5464 bytes |
font_01_sfnt_off000075f5.binafcd5457c2b966cd563f9654a4ed46ef6c61a60ce81f01915d205e42323468de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75F5 | 10464 bytes |
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