MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains a large number of embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics strongly suggest this document is part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://inwebjor.ru/uplcv?utm_term=texas+drivers+ed+online+test+answers PDF link annotation
- http://automsystem.com/UploadFile/file/20210520184210766.pdfIn PDF document text
- https://mmagame.com/userfiles/file/1398287552.pdfIn PDF document text
- https://dentalrud.com/userfiles/file/rovusomazenokuzo.pdfIn PDF document text
- http://www.badischer-kunstverein.de/ckfinder/userfiles/files/kuzaram.pdfIn PDF document text
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/d43c2f038149dcede086c63c034696cf/rosevipipubala.pdfIn PDF document text
- https://kisikana.hr/UserFiles/files/63779810742.pdfIn PDF document text
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16083817783210---riganedafajifovapudined.pdfIn PDF document text
- http://linkingpeople.info/userfiles/file/zovefewizi.pdfIn PDF document text
- http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c73cc653475---87399007968.pdfIn PDF document text
- http://www.ferm-matic.fr/upload/file/53922323906.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/5237837cc08dc9d2ff201764b0300cfb/fanabomajejanerovabegi.pdfIn PDF document text
- http://www.gesas.it/media/mailinglist/file/93609860846.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/32e5d6afe391fe3a815fc3e8ae5ee59c/vujufumoxufubigozaruve.pdfIn PDF document text
- https://aldwalia.com/userfiles/files/fonojefenuketarizakagorof.pdfIn PDF document text
- https://anukulagrotech.com/userfiles/file/sojegivi.pdfIn PDF document text
- http://optykglowacki.pl/obrazki/files/sifamaxom.pdfIn PDF document text
- http://dansensvenner.dk/imagesfile///85894595644.pdfIn PDF document text
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/24e330c9e36edea5b1f594257501a36a/9815360306.pdfIn PDF document text
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16081c73a5d8ac---genumof.pdfIn PDF document text
- https://www.hontoys.com.au/wp-content/plugins/super-forms/uploads/php/files/ht25s0stopap1t8jstlhcepj7d/gobafufubudix.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/pekubabinidumebebudaranon.pdfIn PDF document text
- http://zonwering-belgie.com/ckfinder/userfiles/files/lopuxib.pdfIn PDF document text
- https://melz-feu.ru/upload/lonovud.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_off0000e91a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE91A | 16924 bytes |
SHA-256: 7339dac08cf4867b7f6b06c9ec62e61f66c22ba713057c16d9e9cb42dd29c7ec |
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font_01_sfnt_off00011549.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11549 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012d60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D60 | 10460 bytes |
SHA-256: f5c408e47939e007d5855d3f6586131c7a900153ec9050153b1a64d697732744 |
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