MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised WordPress upload storage and other disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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://gbagencement.fr/uploads/file/forufiretabetoxoz.pdf In PDF document text
- https://chaletsuenodesol.de/files/79238338434.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/qvac7o9qur6pbvihmthp9qe8p5/44912845886.pdfIn PDF document text
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160ba6bfff1f18---72624639456.pdfIn PDF document text
- http://zelene-centrum.cz/webpagebuilder/ckfinder/userfiles/files/zoxenoxowaro.pdfIn PDF document text
- http://orchid-daikanyama.com/userfiles/file/zosazazeleduvaje.pdfIn PDF document text
- http://anhbanglaw.com/userfiles/file/bomaragekubotudedelid.pdfIn PDF document text
- https://98ing.com/upload/ck/files/20210717_011947.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/c908cf4ec98c9b7625ebefc7a7a8ef5a/milutuzu.pdfIn PDF document text
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/eb0a65b64cf706cfa7e976661fad0f59/46055151992.pdfIn PDF document text
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/16072a6d36c922---senipu.pdfIn PDF document text
- http://chiron-ventures.com/chiron/home/img/upload/files/2107231307594952011uhof.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9d26d32b99---72162733412.pdfIn PDF document text
- http://joyearland.com/ckfinder/userfiles/files/limupakutogin.pdfIn PDF document text
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607f05bf990a8---radof.pdfIn PDF document text
- http://jentretiens.ch/uploadimage/29925029721.pdfIn PDF document text
- http://gilleyfamilyreunion.com/clients/6/6c/6ce887ac6ce8bbcacf46524318b1f362/File/tisaxasemazokeka.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093c5c32a354---piworad.pdfIn PDF document text
- https://tiklatakip.com/calisma2/files/uploads/28873668664.pdfIn PDF document text
- https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/35e448b309bac509537092ea26adb836/92835157461.pdfIn PDF document text
- https://matfplayer.com/calisma2/files/uploads/xiviro.pdfIn PDF document text
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16084ae8a99b6f---zizizu.pdfIn PDF document text
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/wafusalumufuta.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b5556e6ccb0---25653354209.pdfIn PDF document text
- https://aldaserwis.pl/ckfinder/userfiles/files/legaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=interview+questions+and+answers+for+manual+testing+for+freshersPDF link annotation
- 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_off00010a73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001228a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1228A | 11148 bytes |
SHA-256: e342d224a9441074918e4f3f9138e1aa07ece9a4102579bea86a88d7555b3e24 |
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font_02_sfnt_off00013bf2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BF2 | 17700 bytes |
SHA-256: 170162a3a66cb7e9f2b8c82ff3e7445158c883cd8feefc35c121883e4c4b0a97 |
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