MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable domains, indicating a likely phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://synerhu.ru/uplcv?utm_term=causes+of+anxiety+disorders+pdf
- http://year-c.com/upload_fck/file/2021-6-8/20210608141924375620.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608082b7916fb---gumamimopanowewapujililup.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/2d178a4c192e2cf634afd5e75e7ee116/botukiwezajikoveludaje.pdf
- https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/0e5d075c45dc4564344c773706798d3b/30341827753.pdf
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/ob40gbmjj78pujh0qv8fpvec1j/39066710793.pdf
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/npmvnsbm2s60u642lpn1b5glm4/divumafuwuwelevotosivo.pdf
- http://aite-materials.com/upfiles/file/46037404269.pdf
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608238c6047a1---ridir.pdf
- http://aqbnb.com/uploadfile/file/49269482714.pdf
- http://veivel.com/userfiles/file/96076383140.pdf
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/1e47738a6120f459467a33d5cfb43b97/nivuzewodagotojupu.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848d872e23a---99116643590.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090f5372f94c---karofedujisazusaduvu.pdf
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/mh8l1n0nc4qap7kur0nn6m64j7/woxezulima.pdf
- http://thementalhealthadvocates.org/files/userfiles/file/70606399991.pdf
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16093f9e4d07f8---xivagofipilupiwazag.pdf
- http://cancercareresearch.com/userfiles/file/sepegage.pdf
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/b8521e2cb7adbdb46cb1bc696c75e099/kogekaxazebawanibesawolam.pdf
- http://jan-fotografie.nl/upload/files/79483271553.pdf
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160acb293cf88c---gasisomolel.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/a692736f513744c35cdbaa08b7f299aa/67007718565.pdf
- https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/14649e4c77be05cc2b000d48e3d8460e/tomaxupigavebo.pdf
- http://www.cheapmotorcycleinsurancepa.com/wp-content/plugins/super-forms/uploads/php/files/e66shc61oh61odq8e6aufq3053/24381968496.pdf
- https://martensmgt.com/business_school/uploads/file/jegezaxozeradu.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_off00010110.binf50d5d86a8b06fddb02e7294cb22a2365217dc7bffe66796670060e86583c3ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10110 | 16676 bytes |
font_01_sfnt_off00012c2c.bin3788c1fa7e77afd8eb55da5c2c4266384fac25561a533cf6a7e9be75b3cc15ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C2C | 10792 bytes |
font_02_sfnt_off0001453d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1453D | 16792 bytes |
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