MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, which is a common technique for executing malicious code. The file also functions as a link farm, directing users to multiple external URLs, some of which are hosted on compromised WordPress sites. These factors, combined with the ML classifier and ClamAV detection, strongly indicate a malicious intent, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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=printing+and+stationery+expenses
- https://butchercurnow.com/img/shop//contents/zitotirarozesux.pdf
- http://2016montemayorreunion.com/clients/e/e5/e530e98a7ee505477716bae2fe71cdef/File/gamumopexe.pdf
- http://agendatourvietnam.com/hinhanh/file/kupafuja.pdf
- https://kp-bs.ru/upload/files/96849096725.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/29c9d9d6tfst77s47sn02picnr/zoxadijukoz.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e7cb5d69a5---segax.pdf
- http://global-leasing-management.com/uf/file/biruxefakofazowimapo.pdf
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/818c5d8b4b0c93813587f3ad8d7552af/zemuxazevipasawijoweb.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b3d2c8f17f9---xusotuxafolotodidixarabak.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c9a5b169c---72268349599.pdf
- http://www.phsdcenter.com/temp/js/ckfinder/userfiles/files/pukovuxefuludefiwe.pdf
- http://0vote.com/ckfinder/files/menetilewebogufube.pdf
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d773416ac02---vozamifubuzululo.pdf
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/d4c9977731d420616a09b0a2480b3a7f/lagalepajusilepazikosa.pdf
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/0b7e3f282baf62431af4cbddf1e133e9/xenubepufe.pdf
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/28vks100np5r633g5c9l2c8ag1/furivimosusojudu.pdf
- http://musicpark-live.de/userfiles/file/pusunomexulezup.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/612add6567c8925ef3153c99150cf9e6/75070445625.pdf
- http://namngonviet.com/user-/files/xivaterarivuxokafurano.pdf
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d3de0b0a1---tefibarozu.pdf
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/6721d4a40cfdf390ca678552eb1e48a4/gadifoxujagaxakod.pdf
- http://progfin.pl/userfiles/file/bibekifekizaxazexa.pdf
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609e9dd75b637---63735419091.pdf
- http://midel.me/userfiles/file/sozaxanorasavavuzu.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_off0000e670.bin0d7aa8fba0e5013a6c18153524251ac15ebff497734e8f720e7b6b65c5ae7c01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE670 | 10740 bytes |
font_01_sfnt_off0000ff0d.bin4326c9388295ab3013672160b907e67e731e66c85ad154a6ed757fa997d92810 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF0D | 16992 bytes |
font_02_sfnt_off00012b62.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B62 | 16792 bytes |
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