MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'book pdf' and the authoring application 'wkhtmltopdf', suggesting a lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a phishing or malware distribution site.
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.cc/pify?keyword=against+the+grain+book+pdf
- http://files.cake-angels.co.uk/uploads/1/3/0/9/130969897/b7d2878f2680e.pdf
- http://files.ccsb.danafarberdev.org/uploads/1/3/1/4/131437249/6374087.pdf
- http://files.musicgifts4u.com/uploads/1/3/2/7/132712326/2ca946.pdf
- http://files.tivolimarsh.com/uploads/1/3/1/4/131406258/923f6470cdc6.pdf
- https://cdn.shopify.com/s/files/1/0430/3316/5986/files/noxenumufe.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdf
- https://cdn.shopify.com/s/files/1/0432/6014/9910/files/52503134348.pdf
- https://cdn.shopify.com/s/files/1/0440/4294/4677/files/18429324950.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39748763391.pdf
- https://cdn.shopify.com/s/files/1/0432/4743/5940/files/12330802147.pdf
- https://cdn.shopify.com/s/files/1/0433/0881/0398/files/newafigekezapewewonirodev.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mozinetesabelenigifil.pdf
- https://cdn.shopify.com/s/files/1/0435/1829/6228/files/lilagejejilowerokejip.pdf
- https://cdn.shopify.com/s/files/1/0434/1753/4629/files/suvaxadoxolajala.pdf
- https://cdn.shopify.com/s/files/1/0435/4280/6680/files/54682419956.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/
- https://cdn.shopify.com/s/files/1/0432/6014/9910/files/52503134348
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009a28.binccaf601c0cd78bfc377d7233dcdc525c8b7ac0202b27c752737f865f919ac33e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A28 | 5252 bytes |
font_01_sfnt_off0000abf0.bin345f0af261c52c5ca913547b3afc108b5562685486fd84af9dc3c4c001fd3e1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xABF0 | 10704 bytes |
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