MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, with a critical heuristic firing for PDF_SEO_LINK_FARM indicating a link farm. One of these links, https://ttraff.ru/wb?keyword=aleluia%20a%20minh'alma%20abrirei%20partitura%20pdf, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to the same URL and other Shopify-hosted PDFs, suggesting a coordinated effort to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.
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/wb?keyword=aleluia%20a%20minh
- http://dabusu.conservatoryathome.com/uploads/1/3/2/8/132814989/1285634.pdf
- http://files.jonathandearmusic.com/uploads/1/3/2/3/132303359/9ec48265ab860.pdf
- http://files.huronlandscape.com/uploads/1/3/1/6/131637928/0db09038b736.pdf
- https://cdn.shopify.com/s/files/1/0433/1002/2814/files/golitiwizanakosodogomodux.pdf
- https://cdn.shopify.com/s/files/1/0433/1339/7924/files/posoguvokemik.pdf
- https://cdn.shopify.com/s/files/1/0431/9143/5422/files/91585774984.pdf
- https://cdn.shopify.com/s/files/1/0434/2117/1864/files/poulin_chainsaw_manual.pdf
- https://cdn.shopify.com/s/files/1/0428/8679/1334/files/clip_studio_paint_crack.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobirunutopuwipigodilig.pdf
- https://cdn.shopify.com/s/files/1/0432/2797/1741/files/bass_guitar_learning_book.pdf
- https://cdn.shopify.com/s/files/1/0438/1740/2530/files/kosarevuvaleroju.pdf
- https://cdn.shopify.com/s/files/1/0427/4470/9276/files/bengali_biography_books_free_download.pdf
- https://cdn.shopify.com/s/files/1/0432/0192/1184/files/35481506884.pdf
- https://cdn.shopify.com/s/files/1/0434/3191/9765/files/31626516013.pdf
- https://cdn.shopify.com/s/files/1/0438/8097/2456/files/new_year_bulletin_board.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_off0000476b.bind0b709310d8e8b58132eddfbd460cca01e0226b7fef56047c7b63926d7314831 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x476B | 5268 bytes |
font_01_sfnt_off00005922.bin9bcf99173e04a69387e43f1b3399f33cb8cfe5e40faa7e3c1275d81ef2bce21a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5922 | 10404 bytes |
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