MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The document body contains obfuscated text and URLs, including the redirector URL 'https://ttraff.cc/pify?keyword=amaranthus+caudatus+pdf', suggesting an attempt to lure users to a malicious site. The presence of numerous Shopify-hosted PDF links, while some are benign, is characteristic of SEO poisoning or link farm tactics to distribute 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/pify?keyword=amaranthus+caudatus+pdf
- http://files.doresangha.com/uploads/1/3/1/3/131381003/8189749.pdf
- http://tezigigot.davidcunninghampolisci.com/uploads/1/3/0/7/130740514/lowurupujusuvo.pdf
- http://files.whitehorsevenue.com/uploads/1/3/1/4/131483009/5515ac98.pdf
- http://ditejujad.artattoo.co.uk/uploads/1/3/1/1/131164250/bakuxabog.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38970143778.pdf
- https://cdn.shopify.com/s/files/1/0434/0485/3402/files/meviduzuxiwiwi.pdf
- https://cdn.shopify.com/s/files/1/0431/0886/0065/files/gikoda.pdf
- https://cdn.shopify.com/s/files/1/0432/6152/6166/files/pixuworuma.pdf
- https://cdn.shopify.com/s/files/1/0434/2782/3778/files/50725098849.pdf
- https://cdn.shopify.com/s/files/1/0431/6338/6017/files/pdf_file_online_edit.pdf
- https://cdn.shopify.com/s/files/1/0439/8999/1582/files/make_bootable_usb_mac_windows_10.pdf
- https://cdn.shopify.com/s/files/1/0439/8442/1022/files/python_string_replace.pdf
- https://cdn.shopify.com/s/files/1/0432/8760/9497/files/mean_value_theorem_calculus_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0440/8374/0822/files/last_day_on_earth_guide_dog.pdf
- https://cdn.shopify.com/s/files/1/0428/4848/5535/files/23125661423.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_off0000680a.bin95ea1b47d5a6dc654ab951c6995500ee989ecebe99f1c462067d6413b74eb4f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x680A | 5352 bytes |
font_01_sfnt_off00007a06.bin4ed16872b39f98cb2b84f8ca9cc674156b61cc8dc393d60f448c0ee2f45aa458 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7A06 | 10048 bytes |
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