MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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=nuevo+curriculo+nacional+2018+pdf PDF link annotation
- http://bibrka-school.org.ua/ckfinder/userfiles/files/gopoge.pdfIn PDF document text
- http://strandedtattoo.net/file/pojokukezaxeguxak.pdfIn PDF document text
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/d5f4c86ccfa4b6424eb105fbc735d238/vivujotigenimazal.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160747c1a21656---jezuzukosovab.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160803d82114b3---fanefibaguxod.pdfIn PDF document text
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/5272a65a0e093c085b8ad4dd971941a0/99225240755.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7377e01e69---26188883959.pdfIn PDF document text
- http://huntland.hu/upload/file/jodizikonugofit.pdfIn PDF document text
- http://novelinternationalschool.com/ckfinder/userfiles/files/xuravazujeseliwozidirisaf.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d9cc650680---kojonebuzagedisawidam.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609182488110a---81035019647.pdfIn PDF document text
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1612649c70ee08---11544321523.pdfIn PDF document text
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b68bfaa7f6---40814582326.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/47d50f69cdb512f362954c73a0c389f8/waxos.pdfIn PDF document text
- https://comptables-publics.fr/userfiles/file/33491406902.pdfIn PDF document text
- https://landi-bg.com/images/file/xajatosafapinoveweditaga.pdfIn PDF document text
- https://leosservices.com/userfiles/file/26057906269.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/82uj13rsp96a24uu2q0pd3ef97/pugidixojezugisi.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/99440286981.pdfIn PDF document text
- http://gezond-trakteren.nl/kasteel-doornenburg-img/bestandenfile/tukigitojesaw.pdfIn PDF document text
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/1ebd95e19b1422355769a17b6cd3fc08/gizikazigufapiwutozani.pdfIn PDF document text
- http://daeryuhealthcare.com/ckupload/files/zajilaxakamazuzokewes.pdfIn PDF document text
- https://vivekanandbawwa.com/userfiles/file/33498524696.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/cbhs835nh5u30nijrmh0oj18u5/28887482713.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/9942faa3300551b2a8be51966ad41a7f/2740389274.pdfIn PDF document text
- http://mprime.net/ckfinder/userfiles/files/59783218842.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_off0000caa1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAA1 | 18360 bytes |
SHA-256: 9cbdeb57601198f752ad1e1570e325282fed735bca82c16e3494b7e42e651ae4 |
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font_01_sfnt_off0000f936.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF936 | 10992 bytes |
SHA-256: 01b56bbb4cac61497350ef7cc5f440f7912072f0838718ee412985988f9ca22c |
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font_02_sfnt_off000112e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112E8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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