MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://chcial.ru/uplcv?utm_term=odd+one+out+worksheets PDF link annotation
- http://xn--m1age8bh.xn--p1ai/files/file/jajaxirewuje.pdfIn PDF document text
- http://studiomalpocher.it/userfiles/files/dukomavige.pdfIn PDF document text
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/16088a28e24a40---dabetisifoge.pdfIn PDF document text
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944cea01415---92663837780.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dba70e7369---48309667040.pdfIn PDF document text
- http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/eqbj7dgmcel0qia0le1braflg0/8208652249.pdfIn PDF document text
- http://dj-venci.com/uploads/pages/files/mazupebadositezi.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/23e3cde9d8bfd160665e5dba08b4ccb9/zebuzaferudupupum.pdfIn PDF document text
- http://moderncarrent.com/user_img/files/lozefika.pdfIn PDF document text
- https://digireg.se/upload/93911960619.pdfIn PDF document text
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d049ed5cadb---powuragalegalad.pdfIn PDF document text
- https://monyetmesum.com/contents//files/dewuwuxuvivunemovozafiwu.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608b79b44a750---31088399115.pdfIn PDF document text
- http://aiken7050.com/clients/5/51/510ae66c864a6d23552e02d1b5190e2c/File/jopunaninagi.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/0gmjfhpgjt8l7qidb7ttdpmisl/24984052932.pdfIn PDF document text
- https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/3db6f68a82cfc9be766441ca022251db/76283221307.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/2dvce85elaq8cpu7t4tsv0ttr7/66954436780.pdfIn PDF document text
- https://felix-schulze.biz/wp-content/plugins/super-forms/uploads/php/files/vpmgd2sgo7nstvscojvufh3jcj/lofevozujime.pdfIn PDF document text
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/21bcb0dd0631bb3788163d15c8feff5f/vapib.pdfIn PDF document text
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/8e485ebe5676f4f5c2942ea7e3e80fa5/murijidejozovododaju.pdfIn PDF document text
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/pc029gvhnsnji5hkaopeo5s1la/43155571043.pdfIn PDF document text
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ae3fc3c4015---47769691881.pdfIn PDF document text
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609684d8043d0---34338074634.pdfIn PDF document text
- https://petala.gr/userfiles/file/12368134741.pdfIn PDF document text
- http://southport1969.com/clients/861680/File/9639734876.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_off0000e332.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE332 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB49 | 10348 bytes |
SHA-256: 07d0184f0abf8486591321da1e79e5a8336dad7cb983e95759a8a2ce154036bd |
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font_02_sfnt_off000112af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112AF | 17088 bytes |
SHA-256: f165fbbe59f7abcd971a1722583712a08f20afc2b43408915b13f70b8318b760 |
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