MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a book download, indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware delivery site. No scripts were extracted from this sample.
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.com/pify?keyword=reading+book+english+pdf
- http://files.tapestrymft.com/uploads/1/3/2/6/132681409/wojuvidito.pdf
- http://files.meredithlauralynn.com/uploads/1/3/2/7/132711947/6427535.pdf
- http://gunos.navigatorsboston.org/uploads/1/3/1/0/131070420/9276dc639ea64.pdf
- http://files.joeberg.org/uploads/1/3/2/8/132815172/35f57d122c884e.pdf
- https://cdn.shopify.com/s/files/1/0434/5056/4773/files/college_mathematics_for_business_economics_13th_edition.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/bagamabuwoputibebebewara.pdf
- https://cdn.shopify.com/s/files/1/0428/0811/5366/files/powerful_adjectives_list.pdf
- https://cdn.shopify.com/s/files/1/0435/0597/5462/files/definition_of_phonology_according_to_experts.pdf
- https://cdn.shopify.com/s/files/1/0435/8710/9023/files/68814115360.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdf
- https://cdn.shopify.com/s/files/1/0431/6309/1112/files/graphql_and_android.pdf
- https://cdn.shopify.com/s/files/1/0429/8607/8369/files/95928730302.pdf
- https://cdn.shopify.com/s/files/1/0431/5339/1765/files/60194858193.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006185.bin22f17e4a2b9b10a3c7c1a6dea66f386c49a0147a432b9513f11a40c1ff80bdf1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6185 | 5124 bytes |
font_01_sfnt_off000072e1.bin1b690996d3bad7ee32a25d55a4ab23db24de3fa1ff2b67c37b497193a27e77e9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72E1 | 10076 bytes |
font_02_sfnt_off00009550.binff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9550 | 4324 bytes |
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