MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The PDF contains numerous embedded URLs that point to compromised WordPress sites, indicating a link farm designed to manipulate search engine rankings or distribute malicious content. ClamAV and an ML classifier flagged this PDF as malicious, specifically as a phishing trojan. The presence of multiple distinct hosts hosting PDF files suggests a coordinated effort to spread malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9845
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://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607079e273ec4---1020191817.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/1a2be050fb6651ecea158d31a5d4f464/62849907772.pdf
- https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/2ec75ac076e706b912f1328604fd492f/95628702465.pdf
- http://riggi.ru/userfiles/file/nabivuned.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071f1ca880f3---zudaxefikutafumenepaxoj.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8ea24c44b---55005672125.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/efd60be0455add114b5dc331ea6e0aaa/28820109832.pdf
- https://designcoordinators.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfa350e80d---65590868121.pdf
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/16081b318b68f8---gosepuzidamit.pdf
- http://edu-family72.ru/content/images/uploads/file/74335387736.pdf
- https://vietfun.com.vn/wp-content/plugins/super-forms/uploads/php/files/ch4f73mj3katt0m93eukmcopv4/mufajo.pdf
- http://albertopizzetti.it/userfiles/files/13516750294.pdf
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aabb088334---xidevisebe.pdf
- https://a2designbg.com/userfiles/file/noxezamopim.pdf
- http://avsa.org/sites/default/files/images/files/39328195226.pdf
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a79fe2f0870---pafilel.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=d%26d+creature+sheet
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_005_off0001ca37.bind9536d663ccecbe62003f54334dc0df9825c0d1cdb270ef67e79c793df8615da |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1CA37 | 18428 bytes |
font_00_sfnt_off000154ed.bin5accd28b93f88256231765d54412dfb73b7c8b89e0db92651776be48329af4d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x154ED | 4040 bytes |
font_01_sfnt_off00016435.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16435 | 16792 bytes |
font_02_sfnt_off00017c47.bin34e25a3f430d08aefb887acffe9feb6af6a593744040874fbb4f321fdb4e5834 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17C47 | 31920 bytes |
font_04_sfnt_off0001e855.binf695977626623e59fedb2fbedebd468d0acf89ff6f6ceafeb3cee4351ddee6c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E855 | 9076 bytes |
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