MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with multiple URLs pointing to potentially malicious redirectors. One critical heuristic indicates a direct link to known malicious redirector infrastructure. The document body, though heavily obfuscated, suggests it is intended to lure users with a topic like 'Software architectural styles pdf'. The primary malicious IOC is the redirector URL.
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=software+architectural+styles+pdf
- http://files.isth2019.org/uploads/1/3/2/6/132680831/2579704.pdf
- http://files.unconditionalloveministries.com/uploads/1/3/2/6/132695698/8330450.pdf
- http://files.leopoldwritingprogram.org/uploads/1/3/1/1/131163833/virajij_mesuripe_rosonuluzokanig_wukujufelovugiw.pdf
- http://files.davidtaylorphotographer.com/uploads/1/3/0/7/130776246/6982911.pdf
- http://files.humeirakazmi.com/uploads/1/3/0/7/130738794/ginujo.pdf
- https://cdn.shopify.com/s/files/1/0433/0510/7620/files/dopebamozenozux.pdf
- https://cdn.shopify.com/s/files/1/0430/8575/8617/files/zoduwoj.pdf
- https://cdn.shopify.com/s/files/1/0433/9744/7831/files/zofalumituviderofa.pdf
- https://cdn.shopify.com/s/files/1/0434/0721/2709/files/96923736223.pdf
- https://cdn.shopify.com/s/files/1/0432/6978/3720/files/dalojizafogetavinadidu.pdf
- https://cdn.shopify.com/s/files/1/0430/9902/9655/files/78446185507.pdf
- https://cdn.shopify.com/s/files/1/0431/5830/6965/files/datefemadojo.pdf
- https://cdn.shopify.com/s/files/1/0438/0891/5613/files/sesegop.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80787326618.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_off0000c8a4.bina0af62240955dd84ab6db96397c38730d8e208d3693dae57925dc1cbc0477b86 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8A4 | 5316 bytes |
font_01_sfnt_off0000dade.bindf7f499b668f03fb1bfb12f360a4b0d28093ebd7efd4b2f9c19cf565da9027c7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDADE | 10608 bytes |
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