MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting, suggesting an attempt to obscure the final destination. The presence of these links and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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 http://atenngo.com/admin/sites/site/documents/ripifu.pdf
- https://airflow-skateboards.com/upload/file/12838718760.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/0c4da1746f2297e19b74a99d9fd19ac2/nijekamotiruseragujeza.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608771cc834c3---869469880.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609896395232f---disimotin.pdf
- http://avtoarka.ru/wp-content/plugins/super-forms/uploads/php/files/f18e3982116ff1b1c100296a62f32f9a/legovezopem.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160897ae09e51a---2943385959.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160827afc1baa7---faruxivusoxezanujemetufi.pdf
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/af54847dda32f2860b771bbc65c9283a/85758852965.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/75873246658.pdf
- http://eperon-kochersberg.com/img_db/litunuvobukudigemi.pdf
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160ac36b9ab331---jonuxogetedibuxovijob.pdf
- http://esoftland.com/userfiles/file/59529909923.pdf
- http://allg-gyn.ch/userfiles/file/98663321459.pdf
- http://apvn.info/userfiles/file/23704840914.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/4764c1aec009aa0b7d5df99a011ac4da/53012864666.pdf
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/634588bedd545a02f0e72aa890dbd65c/zokejuz.pdf
- https://teenvolunteerhouston.com/wp-content/plugins/super-forms/uploads/php/files/e65d21fb85594cf62ccb545628e6bbae/sidamezabufipi.pdf
- http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca0162d6e11---posajibasaf.pdf
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/d2e3e53d8f7f5540e80d80fa4f9161d8/28031148177.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9853258499---sejilitijazesiwok.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fa612dae1c---wikisozejulu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=pastel+powerpoint+templates+free+download
- 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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec59.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC59 | 16792 bytes |
font_01_sfnt_off0001046b.bin7ff247337f4b5c02fce9a33ab80fcdd8740f3730435aa14e838aa16c6088f6ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1046B | 17324 bytes |
font_02_sfnt_off00013186.binbfc7dba6a4eb98dc41bf4e89f9a2caa1556f1db250bfdd55c91a2a0ecf23cc73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13186 | 10744 bytes |
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