MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Avogadro konstanten formel', suggesting a lure to disguise the malicious link farm. The ML classifier strongly supports the malicious nature of this PDF.
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=avogadro+konstanten+formel
- http://files.boardexpressions.com/uploads/1/3/2/7/132712080/tilagosi.pdf
- http://files.kyeemaridge.com/uploads/1/3/0/7/130739452/68836e2.pdf
- http://files.minimalteacher.com/uploads/1/3/1/8/131856547/e732298a9f0.pdf
- http://files.redeemerwestfield.com/uploads/1/3/2/7/132711999/tunere.pdf
- https://cdn.shopify.com/s/files/1/0434/2402/2690/files/dinukimozovekajufe.pdf
- https://cdn.shopify.com/s/files/1/0429/8627/4977/files/62864928701.pdf
- https://cdn.shopify.com/s/files/1/0430/6406/6209/files/gagumodakupemazemoz.pdf
- https://cdn.shopify.com/s/files/1/0431/4651/0504/files/69504486946.pdf
- https://cdn.shopify.com/s/files/1/0434/6799/7344/files/jubexojonawizovidafusi.pdf
- https://cdn.shopify.com/s/files/1/0429/6481/1927/files/finelitiwezojur.pdf
- https://cdn.shopify.com/s/files/1/0432/9262/2998/files/dugevu.pdf
- https://cdn.shopify.com/s/files/1/0429/9830/0823/files/bisanetivape.pdf
- https://cdn.shopify.com/s/files/1/0437/6736/5794/files/perixeko.pdf
- https://cdn.shopify.com/s/files/1/0432/5372/7394/files/2728568678.pdf
- https://cdn.shopify.com/s/files/1/0432/1037/5325/files/18858867360.pdf
- https://cdn.shopify.com/s/files/1/0434/1121/0398/files/fodumaximewo.pdf
- https://cdn.shopify.com/s/files/1/0431/7347/8560/files/32495349487.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_off00006d8a.bin25571023db0c1f46d0da71047b9ddf1aad4c72221a337a3d6742dab8310dc4a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D8A | 5080 bytes |
font_01_sfnt_off00007ec3.bin124b8e5436bb4fb4b366aeeb3b6d10e505f2aaf758fda99c8d9fec5d98d450d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EC3 | 12668 bytes |
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