MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL and appears to be part of a link farm strategy, possibly for SEO poisoning or to redirect users to malicious content.
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.cc/wb?keyword=barreras%20de%20la%20comunicacion%20pdf%20unam
- http://files.myhomeimprovementcareer.com/uploads/1/3/0/7/130775659/fowatorelaxim-wuxupu-nerogivesonow.pdf
- http://files.unleashourhealth.com/uploads/1/3/2/6/132695828/4742923.pdf
- http://majag.mrbsbackyardclassroom.org/uploads/1/3/1/4/131453329/5fd999494.pdf
- https://cdn.shopify.com/s/files/1/0432/1165/3277/files/put_your_lights_on.pdf
- https://cdn.shopify.com/s/files/1/0432/7079/9510/files/60054520678.pdf
- https://cdn.shopify.com/s/files/1/0433/2650/5128/files/kegodomotur.pdf
- https://cdn.shopify.com/s/files/1/0440/1460/0342/files/kosowitufilixebolifotude.pdf
- https://cdn.shopify.com/s/files/1/0430/3778/6265/files/dosuxinedok.pdf
- https://cdn.shopify.com/s/files/1/0432/2269/6098/files/fizafunanevezuxajupaxopat.pdf
- https://cdn.shopify.com/s/files/1/0430/7291/3557/files/xawuranevojono.pdf
- https://cdn.shopify.com/s/files/1/0432/8118/6971/files/bmrcl_map.pdf
- https://cdn.shopify.com/s/files/1/0431/6567/9776/files/nonit.pdf
- https://cdn.shopify.com/s/files/1/0447/9208/6685/files/cease_and_desist_letter_harassment.pdf
- https://cdn.shopify.com/s/files/1/0434/0842/5123/files/vutepirumodo.pdf
- https://cdn.shopify.com/s/files/1/0435/9569/4239/files/67556589577.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_off00005fcd.binc0ce6fa2c7b1b5d1c0835ac42793bc628ab1cd06f48977e8332ea5a62845405e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FCD | 5348 bytes |
font_01_sfnt_off000071e1.bin0a2132c2bc7cd4f780fd121ea7dfb122e699a4551381844e4dc322d4205288ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71E1 | 11000 bytes |
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