MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites. Heuristics indicate this is a link farm designed to direct users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c892e7b7b0---37335553321.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160beedb568761---23130611332.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c795805905---tokususerorujerizazowi.pdf
- https://free-spirit-city.eu/uploads/wysiwyg/files/sijisirafiwugapituno.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ca3c9f18bcc---94531199393.pdf
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/acji99utibrks4hn8cehhnisbv/16508712270.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16082a229925a5---71905648586.pdf
- http://jar-ted.pl/file/porebasaxamuzokaponepawa.pdf
- http://droneducational.com/admin/userfiles/file/90560299306.pdf
- http://wenxuezj.com/images/File/36746530748.pdf
- http://hzdshg.com/images/upload/File/gemisewipubulot.pdf
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/16c51b28e16bb1b23903ddd3f2a0d47a/xusavilajixaz.pdf
- http://primaria-ciocirlia.ro/media/file/jenelufuxuzagamuxufi.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2aef84354---lirenofiletafupumanuxitos.pdf
- http://seanmore.com/userData/board/file/17038103241.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160abc0f438ecd---xosapaxudegubenima.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/1a6c63323b40b636b5d2cc037ff75be1/94407349607.pdf
- https://htddienstverlening.nl/userfiles/file/pewibo.pdf
- http://tramtronbetong.com/uploads/userfiles/file/23080811975.pdf
- http://ciccioinpentola.com/userfiles/files/19689142614.pdf
- http://skolicka.eu/foto/images/file/kuxojaxobagaj.pdf
- https://acavacecio.it/userfiles/files/23303246767.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/ce9505f9d55a68d386d1b3c76435b3c7/kizesoruzu.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16097e4af2164c---bitibalu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=cuadernillo+de+repaso+escolar+cuarto+grado+contestado+2020
- 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_off0000d348.bin3a2185007aab2771f65751ded6dee219f73c985744682f204e70cf124901fb70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD348 | 11060 bytes |
font_01_sfnt_off0000ecf7.bin0cb6589d1199fe68601c05078cd0de37e06466adbeda27f94331b0ddf45596ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECF7 | 18844 bytes |
font_02_sfnt_off00011c5c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C5C | 16792 bytes |
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