MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or delivering malicious content. Several heuristics indicate that the PDF acts as a link farm, directing users to compromised websites hosted on disposable domains, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160826328b3943---tiwugawojizedupana.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/cspsn9degn251vboiapj1m19s7/gaxorozit.pdf
- http://polesprogettazioni.com/userfiles/files/56007673477.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1606d552a7f02a---23183198837.pdf
- http://avandcie-automation.fr/ckfinder/userfiles/files/99586869319.pdf
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/116a9a2aa0e1250d7c3e8311546d06bc/17190075317.pdf
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16083b0da3a416---99040707628.pdf
- http://kaizousha.com/js/upload/files/52944726455.pdf
- http://snsi.jp/image/news_file/karusagegivaziwobatekaz.pdf
- http://camonetinternational.com/files/file/70260311873.pdf
- https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/tvfl0qn5d3796qm235kjqu5g8q/93820588660.pdf
- http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/56333399575.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160b2dbeb90402---zekugaxano.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2702049b7d---daluxitimisudebegivuzulo.pdf
- http://homeopathyhk.com/files/wuburitiruwipivelolemi.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/f2lhm07cquabkeqhonica80lu1/45512643367.pdf
- https://limmaginebistrot.com/file/35001058255.pdf
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607d64060596a---40895101218.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608871db0aede---66830120435.pdf
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160adfd7e6a3a3---wenepon.pdf
- http://goldartline.ua/userfiles/file/vapij.pdf
- https://detectiveoffice.net/userfiles/file/9094477930.pdf
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dc33c4c24a---77370346188.pdf
- http://austral-immo.com/userfiles/files/11721927327.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=family+analogy+of+the+cell+organelles
- 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_off000106db.bineecbc5aff956c57ef1ad267d2ec8cdfc7d28d2dff76474351df66d39abc5cd0a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106DB | 18632 bytes |
font_01_sfnt_off000136de.bin44c4b3ba0bcefebc07f8fc9873f4be42e368e04014d815ef5fb5f5fa353d4d0e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136DE | 10876 bytes |
font_02_sfnt_off00014fd0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14FD0 | 16792 bytes |
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