MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF employs a common phishing tactic, presenting itself as an image-only document to conceal a clickable link. Numerous URLs were extracted, many pointing to compromised CMS upload directories, suggesting a distribution network for malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or to serve a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 7
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 66 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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=khal+nayak+full+movie+online PDF link annotation
- http://azco.friend-match.com/upload/files/21701873742.pdfIn PDF document text
- http://z-sinpro.com/upload/files/folujupiwokajewefevepitar.pdfIn PDF document text
- http://teacherandtraining.com/coj_u/KK/userfiles/files/kilip.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1612ece90c208d---loxufogitivi.pdfIn PDF document text
- http://hoya-system.com/uploads/files/202109041211582059.pdfIn PDF document text
- https://ocw.tw/uploads/files/megurabasuzoxiba.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131bec7e4c74---97551963833.pdfIn PDF document text
- https://smilaxlabs.com/userfiles/files/77624925176.pdfIn PDF document text
- https://vmwarts.com/ecovic/file/92718481526.pdfIn PDF document text
- https://abrasco.org.br/ckfinder/userfiles/files/ragisulawedejin.pdfIn PDF document text
- http://www.pes.edu.mn/ckfinder/userfiles/files/vorutowuxexumi.pdfIn PDF document text
- http://cosmikkino.ru/sadm_files/57530525857.pdfIn PDF document text
- http://bbmeti.it/userfiles/files/97739295161.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/76b27fa29b64e515e6bb90350439154f/67865514048.pdfIn PDF document text
- http://vamaconsulting.sk/userfiles/file/fasiridejaxixonag.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137bc10c98d2---20690894316.pdfIn PDF document text
- https://soccerauquebec.com/userfiles/file/jofejanegobu.pdfIn PDF document text
- http://air-ned.com/uploads/files/17255624089.pdfIn PDF document text
- http://evola.it/userfiles/files/bitaxobo.pdfIn PDF document text
- http://karcannakliyat.com/userfiles/file/latedomigagadolelopefej.pdfIn PDF document text
- https://luathoanghuy.com/uploads/files/durokumogavatosixi.pdfIn PDF document text
- https://kirmatas.com/userfiles/file/56039124655.pdfIn PDF document text
- https://kitapkaplama.com/upload/ckfinder/files/jawuxusajaxexakifil.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://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_off0000ae71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE71 | 14132 bytes |
SHA-256: fc36aa70277d0ad4a81e65f4abcadb2abef3eaa4acfe49f0855abfb49db099df |
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font_01_sfnt_off0000d1c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1C0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e9d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D7 | 10476 bytes |
SHA-256: f216a1905a3cece6347b58388a0f2dd28fd821d0a524a65ba3e0aebcd92b4b92 |
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