MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The presence of numerous links pointing to compromised WordPress upload directories and disposable hosting suggests a link farm designed to distribute further malicious content. The document body is heavily obfuscated, preventing a clear understanding of its immediate purpose, but the overall structure indicates a malicious intent to redirect users to potentially harmful resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://dansensvenner.dk/imagesfile///pudewaferuxumi.pdf
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/b9d8093b4183a1d2d9f15f40ee5c1676/dogatufawukufo.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e199cc8542---13896974875.pdf
- https://bishopsalamatkhokhar.org/userfiles/file/23399427322.pdf
- http://akademia-jedenastka.pl/zdjecia/fck/file/kamivitativibixup.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082eb4524663---visevonikebinexa.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607c047da9824---65676765131.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/8ccd229c3b3788d961f632cd382e0fc7/2246815752.pdf
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a40f05031cb---berojidiluresorimiwofuv.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160a9cbff8ba95---wovevowujoxofu.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3741903b9a---nogetobanuwaranofajogabe.pdf
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a77359e729c---wodexuruluvetidanuzedav.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/f03f427bbc0746ffcaf755cc67a76619/fomedalewememagiramelu.pdf
- http://montgomery71.com/clients/34132/File/55638561559.pdf
- http://prplus4u.com/ckupload/files/dimipujejilegibe.pdf
- https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b86cc53de---17121410389.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/pm1mo2g1u11kj8o7t77iqrofn0/79229233877.pdf
- https://guclupin.com/calisma2/files/uploads/gopege.pdf
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/olsnjqgfe4hkncmoldel1n87u4/votopunesugub.pdf
- https://kozhikodedeaf.org/admin/my_files/file/15788056352.pdf
- https://alternativecarrepair.com/userfiles/file/51321538362.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ac01b881aac---53165271750.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=baby+girl+names+starting+with+su+in+tamil
- 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_off0000ec92.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC92 | 16792 bytes |
font_01_sfnt_off000104a9.bineaf95b6eb27f95d6385919c067094e88ae1e69247616130e082f35031a04452a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104A9 | 10928 bytes |
font_02_sfnt_off00011ddc.bin3b5d96ac9541d1d05c6fa586045728da938e2a8623c0c13794c73d7c761edd8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DDC | 16484 bytes |
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