MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for Pdf.Phishing.Trojan. The numerous embedded URLs and link farm indicators suggest a phishing or SEO poisoning attack. The file likely serves as a lure to direct users to compromised websites or malicious content hosted on disposable domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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=tnpsc+group+1+2019+model+question+paper+pdf
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/0392906963ec8341abfd516e5664e548/melatutenodixunor.pdf
- http://acudrved.com/ckfinder/userfiles/files/21233685423.pdf
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/vqerg7mg0kmh8fc65tssa4b38n/magosik.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1607dd08aec6be---zisulovod.pdf
- https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/ba2064cec25a1318b4cf9c159b9ff94e/viref.pdf
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160a4cdcebc55e---93374658849.pdf
- https://jordanadams.com/ckfinder/userfiles/files/jajiwurixi.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160894ff6d0a49---10724297194.pdf
- http://djpress.pl/Image/files/44303812267.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160922d7d79d32---52651989313.pdf
- http://tgtech-auto.com/userfiles/file/26514942761.pdf
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/7ba62e3844a1a67269bc7bd0f10d867e/12269676416.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b836523add2---vilesezabofafa.pdf
- http://citescolairedeledit.com/include/file/35740341340.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/4a0eb649f4511e4ec8a030d20dd8258d/nefilojememaze.pdf
- http://l-max.ru/userfiles/file/8791181731.pdf
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9c035a6011---rubisuxogu.pdf
- https://rwd1.thadv.com/upload/files/noxaw.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a90bfaaf8fa---37395171157.pdf
- https://sushixusa.com/userfiles/files/13204598109.pdf
- http://www.verneteco.com/ckfinder/userfiles/files/28081103143.pdf
- http://szintai.hu/ckfinder/userfiles/files/petijunidatumitipumitatup.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_off0000cb53.binfa8a085928e959354e5fe69dbe77eac9e89e7012f050ca4c35eeefe3dcdbd37e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB53 | 17332 bytes |
font_01_sfnt_off0000f833.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF833 | 16792 bytes |
font_02_sfnt_off0001104a.bin353274e5d1164560ac417df27a4f9af6f6737a7438af0e821ba2f01c05518faf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1104A | 11636 bytes |
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