MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm with numerous embedded URLs, including a known malicious redirector at 'https://ttraff.ru/pify?keyword=bartleby+the+scrivener+pdf+download'. The document body, though heavily obfuscated, appears to be a lure for downloading content, aligning with the heuristic findings of a malicious redirector and a 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=bartleby+the+scrivener+pdf+download
- http://files.vaaec.org/uploads/1/3/1/4/131483719/zezutazezapudo.pdf
- http://files.recoveryofhistory.com/uploads/1/3/1/4/131412558/3437718.pdf
- http://taramez.starfishlearningjourney.com/uploads/1/3/1/3/131383544/5669129.pdf
- https://cdn.shopify.com/s/files/1/0445/7683/3700/files/assembly_language_programming_8085_examples.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/potiwabuvufepatene.pdf
- https://cdn.shopify.com/s/files/1/0432/0490/3073/files/61440788105.pdf
- https://cdn.shopify.com/s/files/1/0431/0361/7173/files/lesuxoje.pdf
- https://cdn.shopify.com/s/files/1/0433/5638/9528/files/perspectiva_isometrica_caballera_y_militar.pdf
- https://cdn.shopify.com/s/files/1/0430/3729/4741/files/votedad.pdf
- https://cdn.shopify.com/s/files/1/0431/4444/6118/files/fapimakatuledizeraki.pdf
- https://cdn.shopify.com/s/files/1/0437/1474/0375/files/mathematical_optimization_books.pdf
- https://cdn.shopify.com/s/files/1/0429/5216/3481/files/gijupitejosuviriw.pdf
- https://cdn.shopify.com/s/files/1/0434/6295/1077/files/dusuworajanezizivoseku.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_off00004662.bin54cc35cb7d705bddc1f12203e27a74f90c3cc914ef2f28e27c2bd6f2563d0446 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4662 | 5684 bytes |
font_01_sfnt_off000059c9.binb97fbd37601dc2671b7d00f94728a54585e47fa1dd6fce19938f7094a12d24bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59C9 | 9576 bytes |
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