MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded URLs pointing to compromised WordPress sites and disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, with the document likely serving as a lure to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://krisoc.ru/uplcv?utm_term=what+to+do+when+puppy+cries+at+night+in+crate PDF link annotation
- http://kochamsushi.pl/UserFiles/file/69484580168.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b652573270c---rulusokuvakiwupot.pdfIn PDF document text
- https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/0eab943dacfa0d9946868409aefd40a7/53186029631.pdfIn PDF document text
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/45f7ec208b1ab36df7e6327d51ccee76/61415244727.pdfIn PDF document text
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608e01cc6a990---vexedavakewasixitafur.pdfIn PDF document text
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/46fd3c950d9c0efa5b1ef00ac5b96d81/rifowufaram.pdfIn PDF document text
- http://phdpecs.hu/userfiles/files/nowopomimututepokaxolo.pdfIn PDF document text
- http://pferdefreunde-brueckenhof.de/sites/default/files/userfiles/file/fejupexovima.pdfIn PDF document text
- http://uro-medical.pl/zdjecia/fotki/file/kebopitev.pdfIn PDF document text
- http://envigest.cz/upload/file/28911684402.pdfIn PDF document text
- http://escuelasfutbol8.com/docs/files/pirikimum.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/b18b6b863da82eb361bc3f1d834d09a1/mewuwobijobopasi.pdfIn PDF document text
- http://www.publicitymailing.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160ac3381b45d1---rawuno.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/67c3cf0911e9a7a85193d4e9fc7c30c1/84032855357.pdfIn PDF document text
- https://alakharia.com/public_html/userfiles/file/zupebapasexo.pdfIn PDF document text
- https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/fa02a19a36b76f930cf1da43bc6db7da/30299967068.pdfIn PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16072631c7925e---lutulusulukapuvopadu.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609455ec75892---90984316893.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_off000104c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C2 | 11040 bytes |
SHA-256: a5fe27d137b17defde6764c6773f4f9c876cb610074c69325bfc4485f717a906 |
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font_01_sfnt_off00011e43.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E43 | 16976 bytes |
SHA-256: a9ccdda92f289b8923c5d78b54729475e305e33d150ccc64a006d474b787e007 |
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font_02_sfnt_off00014ab8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14AB8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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