MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of external links, many pointing to disposable hosting services, suggesting a link farm or SEO manipulation tactic. The presence of the 'Latin study guide' text, combined with the numerous external links, indicates a likely attempt to drive traffic to malicious or compromised websites. The ML classifier and ClamAV detection strongly support the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
Heuristics 6
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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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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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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://trafftec.ru/123?utm_term=latin+study+guide
- https://biwugina.weebly.com/uploads/1/3/1/1/131163984/guzewefin-xuxuba.pdf
- https://jivexine.weebly.com/uploads/1/3/1/3/131380908/33e22bd4bd1e937.pdf
- https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/7609666.pdf
- https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/3f30f6e4a31b.pdf
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/linurigaruxox.pdf
- https://zewuxufasebi.weebly.com/uploads/1/3/4/3/134320084/2505b544aa71d3.pdf
- https://jawokipuroz.weebly.com/uploads/1/3/4/2/134265350/dabutiki.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/liwafo/publix_oasis_plaza_homestead.pdf
- https://uploads.strikinglycdn.com/files/eb8bc69c-268a-41d7-a30b-182330475484/58839293678.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_off0000c6f5.bin83e2e37cd5cf0a0bc2f9d76d09fb94f16d5ef8983369c0a98d7f70b0dc44c134 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6F5 | 4908 bytes |
font_01_sfnt_off0000d7c8.bind392745dbe680ce3f9f9ab12870651efc269cb037a1ea37cd4008bcc8e37b440 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7C8 | 10036 bytes |
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