MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains embedded links, one of which points to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, appears to reference diagnostic guidelines, suggesting a lure for a phishing or malware distribution campaign. The presence of a PDF link farm heuristic further indicates malicious intent, likely for SEO poisoning or traffic generation to malicious sites.
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/wix?keyword=antiphospholipid+syndrome+diagnosis+guidelines
- https://cdn.shopify.com/s/files/1/0440/4091/3046/files/dudikat.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.pdf
- https://cdn.shopify.com/s/files/1/0437/8856/6680/files/3107876946.pdf
- https://cdn.shopify.com/s/files/1/0435/3975/9259/files/old_town_guide_147.pdf
- https://static.usrfiles.com/ugd/b8c837_db8c6c37836142628832b224ca873684.pdf
- https://static.usrfiles.com/ugd/ab922d_555cc5ef60cd4c139869c9bc443212ac.pdf
- https://static.usrfiles.com/ugd/4479ed_1bedc258e1c7432e8767435dfed75e70.pdf
- https://static.usrfiles.com/ugd/3de8a6_8b37af6da286478e8815e167cbcbb097.pdf
- https://static.usrfiles.com/ugd/89c6ad_11fd8535e26245ed9e8867aa684d20e5.pdf
- https://static.usrfiles.com/ugd/b8c837_02c5162ab6da4f1a90a64da69f73a5f9.pdf
- https://static.usrfiles.com/ugd/c3548c_f78a6ec24d5a4d4887c0feac73244b86.pdf
- https://static.usrfiles.com/ugd/63d3ad_f2c21424c6f74a71a9c2188aa21c1235.pdf
- https://static.usrfiles.com/ugd/b8c837_73d5255afcca4dfdb262f903722b9676.pdf
- https://static.usrfiles.com/ugd/37321e_16f3d06e92f34746934bd52c56a54e43.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_off00007cf7.bin5945bb1f9ce080285e23a30ed24b6da8bf185ae539d33486dd7135489f4b58c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CF7 | 5464 bytes |
font_01_sfnt_off00008f67.bin60568d9848bca9313d77230728c7f0b67234b77d3b3610b08d243ff55f7adae4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F67 | 10716 bytes |
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