MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external URIs, many of which are linked to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the nature of the heuristics point towards a phishing attack pattern, likely using the document as a lure to direct users to malicious websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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=real+free+fire+diamond+hack PDF link annotation
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/9d45470om32c9c887tmood7sf1/kunusimujif.pdfIn PDF document text
- http://gloteckr.com/upload/editor/file/8260511972.pdfIn PDF document text
- http://artpolinakuzina.ru/pict/file/95227597757.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161503dd35a3c0---setutalap.pdfIn PDF document text
- http://riskhedgetech.com/uploaded/file/1605778548613a72b553ef5.pdfIn PDF document text
- https://finliz.lt/i/File/fibawawotadupolosejoru.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1614b6b6cecc00---33631285038.pdfIn PDF document text
- http://c2r-auto.com/uploadfiles/file/2021090116050473499.pdfIn PDF document text
- https://novahealthclinic.ca/userfiles/file/69126881819.pdfIn PDF document text
- http://jandenzobv.com/image_uploads/file/soxodojuxejimaku.pdfIn PDF document text
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1615a73173b5a1---fuxezinunaworezokoraz.pdfIn PDF document text
- https://securitydm.eu/slicice/file/99562067373.pdfIn PDF document text
- https://esperanzadeavila.com/fotos/file/zugofenetetekawut.pdfIn PDF document text
- http://cathugo.de/res/wysiwyg/file/46149970272.pdfIn PDF document text
- https://tungafilm.com/dorceiys/ckfinder/userfiles/files/78486919557.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16140a3746ed78---68431072697.pdfIn PDF document text
- https://iieng.org/editor/ckfinder/userfiles/files/remozajotawirofowanan.pdfIn PDF document text
- http://www.deopendeur.org/imgUser/file/80267894392.pdfIn PDF document text
- http://clanlogging.com/userfiles/file/98432780827.pdfIn PDF document text
- http://iproperty.ae/userfiles/file/32113585798.pdfIn PDF document text
- https://pointwebhost.com/calisma2/files/uploads/20261235637.pdfIn PDF document text
- https://jager-ig.tw/up_photo/file/wokutixaxalulawufataxev.pdfIn PDF document text
- http://tgroupsrl.com/userfiles/files/1628107883.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_off0000d342.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD342 | 10612 bytes |
SHA-256: 752c14bacb28cf371921b46a638ea1803446c5389fad334281bf89331a5e90da |
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font_01_sfnt_off0000eb39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB39 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001034b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1034B | 17624 bytes |
SHA-256: e7da18064f92c1014c3d58551bf8adc63711435702d0aace10bbd05dc8f113f2 |
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