MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of numerous external URIs further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://chcial.ru/uplcv?utm_term=who+knew+that PDF link annotation
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d4dc67c5aa1---35702212588.pdfIn PDF document text
- http://marthomaiticherukole.com/userfiles/file/xadugofewumivitofarona.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5795f8f28c---pegilemiveweped.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab97d96f394---31246623440.pdfIn PDF document text
- http://sjhrz.com/images/upload/File/33541446079.pdfIn PDF document text
- http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/nifudibude.pdfIn PDF document text
- http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/ecbe3ed8ab6b2df355aba6df0ca4d7f7/wimije.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d05f1c5b66d---jorufiveveme.pdfIn PDF document text
- https://aduanaldelvalle.com/userfiles/file/bamejugaguvukakedige.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/fd2b31de025c685181053ec1c2d96db4/razubegaxoni.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16076365db1234---luzemixo.pdfIn PDF document text
- https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/38621a9247a71721c8dbb2e9b4adc9e8/tukosinomodadujekakakuzu.pdfIn PDF document text
- https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1609c078c2e745---45250274774.pdfIn PDF document text
- http://wrhs1967.org/clients/6/61/617565fc8afb9cc6d18abf932d248b7a/File/vulikubepexamoxisogised.pdfIn PDF document text
- http://mail-ex.net/userfiles/file/kipunapumukuvir.pdfIn PDF document text
- http://oresteruggiero.com/userfiles/files/94671374976.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f8c660d89---sexudusuguwolotit.pdfIn PDF document text
- http://barcelonasixtytwo.com/userfiles/file/garifojosawarevebofogux.pdfIn PDF document text
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160759ec779ae1---koronajivetevuk.pdfIn PDF document text
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbd4fdcf59d---kusuvinis.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/f88374b9a8e36b47625b0af60b58feed/59630996528.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/50819421581.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/jab2eqdc77dl4t42dg52ts0870/94921500959.pdfIn PDF document text
- https://haysalon.com/public_html/userfiles/file/bagajuxuzefomokizawimelas.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF95 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000107ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107AB | 9968 bytes |
SHA-256: a8fd563f1231605fc8a4bc627694865be67c8ccaf1d3eda315b548656783f7c9 |
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font_02_sfnt_off00011dbe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DBE | 16800 bytes |
SHA-256: e93950f4811c22afed9e1b15adc3197d5a27eca661c2d4345f63a8e8c5de53ef |
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