MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document functions as a link farm, containing numerous URLs pointing to compromised WordPress sites, suggesting it is used for phishing or to distribute further malware. The presence of multiple external URIs and a link farm heuristic strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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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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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://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bac9218c31f---rijolunaxifojas.pdf In PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8536bc08b6---datixuwusaxufamugagixata.pdfIn PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/29dd4420097291c5befb3533ef0622d4/62223864052.pdfIn PDF document text
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/1o5jn4sm4it6gdo9gl6tdidq70/92611013359.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/af6f8e557c264eed59216312526d24ba/24575829966.pdfIn PDF document text
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/47878ffe6e8864d88189911408339803/42272588168.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160763e1d42580---wekitubuv.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/9bjsl4cgvj7sp8a7u8sv26bos0/92504730324.pdfIn PDF document text
- https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/64a2e5bb690d351b5e9e86120acbcbee/32542460882.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/7096a74ad902a312ab1783b904116c97/zejogifikanibodil.pdfIn PDF document text
- http://intergeored.com/upload/File/13578195023.pdfIn PDF document text
- http://mariopresto.pl/userfiles/file/3379565158.pdfIn PDF document text
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608f017849237---313987687.pdfIn PDF document text
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c586256f622---naxogumotetu.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1608f21423532a---25660862578.pdfIn PDF document text
- http://mega.kz/media/upload/files/60669285419.pdfIn PDF document text
- http://kompletucetnictvi.cz/files/file/lozisodele.pdfIn PDF document text
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/b79rulepbf0992tqqrg789sem5/buzanuvegibil.pdfIn PDF document text
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/5opjgvb0k611frcc5deq8nljhf/pigetuxamuvukutupawax.pdfIn PDF document text
- https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/afca331f1b550483685d32d09a270564/12772275364.pdfIn PDF document text
- http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/be77b60dd5a858fc1900db1416630086/99276513600.pdfIn PDF document text
- http://www.addvanceo.info/userfiles/files/72633767696.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16094be25d53aa---jarijuze.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/sifatowesoxasovipaxutu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=corn+plant+yellow+brown+leavesPDF 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_off0000f232.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF232 | 16476 bytes |
SHA-256: de8ac11fbd53a56048128848f5ccb73a8392e81ba0262753c8f0d39ad7709361 |
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font_01_sfnt_off00011c31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C31 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13448 | 10592 bytes |
SHA-256: 76218c09756905374eeefffbd84a5a7798cc50caa728df142804e6b37fcdd8a6 |
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