MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm with numerous embedded URLs, including one pointing to known malicious redirector infrastructure. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content. No scripts were extracted, but the overall structure points to a phishing or content distribution attack.
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=membrane+potential+pdf
- http://files.allisonattitude.com/uploads/1/3/1/8/131872087/dudobikuluru.pdf
- http://files.bisonsbikes.com/uploads/1/3/1/0/131070792/wigufob.pdf
- http://files.ifindoubttravel.com/uploads/1/3/1/4/131452922/nirowevaxazedem-rokevo-kasod.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/3886/6593/files/zekafumibebafikejuw.pdf
- https://cdn.shopify.com/s/files/1/0430/8179/3698/files/15276526651.pdf
- https://cdn.shopify.com/s/files/1/0428/9649/0663/files/372586173.pdf
- https://cdn.shopify.com/s/files/1/0430/4925/5061/files/gipuxirojaxaf.pdf
- https://cdn.shopify.com/s/files/1/0430/2995/4721/files/tobaguratixukavunu.pdf
- https://cdn.shopify.com/s/files/1/0435/4569/0266/files/mijejojamujuniz.pdf
- https://cdn.shopify.com/s/files/1/0433/7002/1014/files/ferozuzutabubotunawajit.pdf
- https://cdn.shopify.com/s/files/1/0428/5317/1356/files/29911627597.pdf
- https://cdn.shopify.com/s/files/1/0435/9290/8963/files/lijegukor.pdf
- https://cdn.shopify.com/s/files/1/0433/5327/6574/files/kexurixopo.pdf
- https://cdn.shopify.com/s/files/1/0436/9675/0746/files/nazawezosuxutumafiroferuk.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000072d9.bina503ae0e0209f8f209ddff51614224874221a8a6371ed3df3c2984f9455380ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72D9 | 4944 bytes |
font_01_sfnt_off00008385.binb8c67643563caa056efca87733570ba99b716816fe11722b55354a7b0f843064 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8385 | 15748 bytes |
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