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 a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute or host malicious content. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis point to a phishing or malware distribution scheme.
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 http://eugensa.lt/app/webroot/uploads/userfiles/files/riponedidugibebiwuze.pdf
- http://www.gamylai.vn/uploads/files/tiforo.pdf
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/5e013de138d523e05a723785e7f4465c/27354658598.pdf
- https://pima-alarms.rs/slicice/file/10863471925.pdf
- http://md-servicios.com/userfiles/file/82807765898.pdf
- http://kolkandkolkdesign.com/site/data/ws/files/ginufu.pdf
- https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c89d652b05---tusikisujosenasusof.pdf
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/61f510a2c081e4ef8f08c7e612f8107a/kozobasuralatetutosu.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1606d90bad0435---wozamediganasesu.pdf
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/16078e8ca26a42---kisarixewujoxile.pdf
- http://dlzj.net/upload/files/20210622195431558391.pdf
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/ju65k8bmggs8ps46k3t7fo8jvn/69710914616.pdf
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/30a469aafbebc8000db498e8ae14dafc/3734997339.pdf
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/44f6c3084bab24bfcbd8ec64b541b94c/gesafizelazetoxeto.pdf
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/20d4ecdfcd0b7d8a74c6c987cb0e770e/zedamawowonozi.pdf
- http://emotionpicturesfestival.gr/userfiles/file/xopunufejenopewof.pdf
- http://ergo-logo-bamberg.de/userfiles/file/48602762522.pdf
- https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/5v9qbv94vrmpq1t4cr4s8uujge/45924031980.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/8pt9j3f5onkjp99ldaf16kuuej/67934114261.pdf
- http://bogelaipigeon.com/upload/file/33326133326.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/469159d33ca3da88b68960ec244f6e52/67636421366.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ed76857f819ca73b9bb9f44917eab369/sapukesasamejigoxe.pdf
- https://amenajarisiconstructii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16080bc7505dac---18936568006.pdf
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608072fdd54a0---lumifufekobobakajiwusawos.pdf
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/8417008aea69ab6889935cdbb932510f/zadogadigomivone.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=coining+process+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_off0000c48c.bindca03e25d29dfaeb32084c208d28813f75662efc378800e2e50b9b237c59b545 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC48C | 10520 bytes |
font_01_sfnt_off0000dc60.bin1b1922841c43f67e54f6c9f36fef640281e08fa2ada60de7d7e6b0752c8bad3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC60 | 15160 bytes |
font_02_sfnt_off0001030e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1030E | 16792 bytes |
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