MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous external URIs and links to compromised CMS upload storage suggest a phishing or malware distribution campaign. The file likely exploits a PDF vulnerability to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://crysiq.ru/uplcv?utm_term=how+to+calculate+how+many+molecules+are+in+grams
- http://identik.hu/editor_up/kemisomevavinameruri.pdf
- http://euro-ex.net/images/blog//file/xirewugewalifuwib.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/28e3e61a4b45a120140cce97b92a737b/tatinuxeruresubajovuvaxi.pdf
- http://mrs-edu.com/sribati/editor/uploadfiles/mixeb.pdf
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/dc8a88ad274d382d89913388cba32437/bozamifetesoxokujadim.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/49dec3ea06175b3a0837c5aa6278baf7/wumetopiligopofosobifobok.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ab78b00b40a---kafijaweduselegamoni.pdf
- https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcb4f5df72c---xezeraji.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/v20i3bkbvaucl9cjdj787sovs5/49713451048.pdf
- https://argentinaproduct.com/ckfinder/userfiles/files/30533423180.pdf
- http://bamila.vn/luutru/files/49383473524.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ada7fc6845---topojotutazogige.pdf
- http://www.cerathai.com/image/upload/File/95260809636.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1609c28d7536ef---kurinutesulorenax.pdf
- https://memoservicesrl.it/file/46736606764.pdf
- http://phillipwhiting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf307ac5fe2---23556939138.pdf
- http://garantc.ru/userfiles/file/rewobebazisetujija.pdf
- http://yuhenganquan.com/userfiles/file/20210818165925_1619585075.pdf
- https://lecachet.fr/docs/files/67884310762.pdf
- https://bayihoki99.com/contents//files/nuzulubi.pdf
- http://alessandrobelleseveterinario.eu/userfiles/files/82711710351.pdf
- http://es-manzokudou.com/yamituki-n/uploads/files/45223715042.pdf
- https://ksi-system.pl/editorfiles/file/dagowonojasixaluj.pdf
- http://jrpst.pl/userfiles/file/14856920478.pdf
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a0c9a9284b---3288255041.pdf
- 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_off0000d955.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD955 | 16792 bytes |
font_01_sfnt_off0000f16c.binbcb03b7cadad2fceea5f49e837e12e1ff07e2466b3ca43ae90891cf9606a4dea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF16C | 10968 bytes |
font_02_sfnt_off00010aba.bin610cbc4905c3133372a8a187c594953354094fda59516ab82693c898375cb5a2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ABA | 17908 bytes |
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