MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ClamAV and an ML classifier. It contains embedded JavaScript and numerous external links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm or phishing lure. The presence of embedded JavaScript indicates potential for further malicious actions, such as downloading additional payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://to-kajihan.net/js/upload/files/93330112768.pdf
- https://elitstroycraft.ru/source/file/48306201284.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ec4b1e3a162---norasurerojilotafimi.pdf
- http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097878ea7a7c---kikitipupelo.pdf
- http://pagyesa.org/userfiles/file/20210719153059.pdf
- http://nfc-lampang.com/user_img/files/nabire.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d5b104dbbab---wefujikafosozisezebexe.pdf
- http://medizator.ru/ckfinder/userfiles/files/5363256977.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160718e0fec3b6---bejibegimap.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/dd0dc1f755e2eb553b2b5584bcdd1ba7/62675127418.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/debd685000f30053c37a860fbf5c6af6/vofumadabezituzenajepazod.pdf
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083cf36203d5---bonidusudozumuke.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/6e8lpjffsm24i62i8keekj5td7/87303217665.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16081af65c6426---foladarofofuzugixitob.pdf
- http://alianzablue.com/aym_image/files/30891068008.pdf
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/eddbf7b63222e4498c9d36d1e350d139/91168120914.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/88e413e92163bd5f08bdfb8f8879cbc8/jivejuzidorafegel.pdf
- https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/v9p5ncklr8mje9sgkjt4e445hp/78057125225.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f4168d1edb9---xizuvop.pdf
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c10db8921f5---tijiketadiwebepu.pdf
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160861c66eae0a---tivugut.pdf
- http://yaqeen-eg.com/userfiles/file/9467321382.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf16bbf33c---bukugumuz.pdf
- https://aptitudeclass.com/ckfinder/userfiles/files/xeturagolebigodubipima.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=the+gentleman%27s+guide+to+getting+lucky+pdf+free
- 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_off0000dca7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCA7 | 16792 bytes |
font_01_sfnt_off0000f4be.bin9a0c1c7a0a029618c7aefaa7de696be1925720945596740f2bf4db377229d586 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4BE | 11368 bytes |
font_02_sfnt_off00010f2b.bindba81a1a2adb175c4ab792d47ef351f80d24722c7a199afef4652c7ee334bf6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F2B | 17604 bytes |
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