MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised websites and disposable hosting domains, likely for phishing or malware distribution. The presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 https://philabc.ru/uplcv?utm_term=computer+organization+and+architecture+objective+type+questions+with+answers+pdf
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/4222a75f76c263b5e204ac10b1a401a8/navisitakebuwa.pdf
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c52871986fd---11049245691.pdf
- http://unseenadventure.com/userfiles/file/12215655739.pdf
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/ede8c2850b7be974f257a27d9c460a66/dafotatonufuj.pdf
- http://lapawan15.com/shop/fck_file/file/kasufegojezadomukuder.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/a51640338619dd6be8d17891359b1a70/45427892151.pdf
- http://swiss-ex.com/buginega.pdf
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5669f63c1c---40949679887.pdf
- http://fairway.cc/images/blog//file/nasewagiwuke.pdf
- http://0-50.ru/userfiles/file/bafigoxojoxebuzelibi.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b08e8cac508---82758272700.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b928bbcb5ef---90214010795.pdf
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/69264b56630756fd10a9f425aec28e9c/54895720676.pdf
- http://eksan-ltd.com/userfiles/file/rubevipamukat.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/480ae2b647fdf9129191ed684927ccef/vederufisoripud.pdf
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073173f3bf9d---xatokep.pdf
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b54f7c574e5---25436970989.pdf
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/160708fc6df1b8---6335560109.pdf
- https://www.lightingsolutionsal.com/wp-content/plugins/super-forms/uploads/php/files/1caa110dca3e173957ac1a19c09561fa/sepoludofefamitagudatinen.pdf
- http://amexeuro.com/an3_Uploads/file/53762585791.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/160a81da4dcfe0---8367911199.pdf
- https://uleshuzatabc.hu/files/file/kavif.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_off0000f4a0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4A0 | 16792 bytes |
font_01_sfnt_off00010cb7.bindd98be5a0b8055cc975145d1a5523c9486154b1b8f42a65fccf90ee8c1764dc4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CB7 | 11896 bytes |
font_02_sfnt_off0001286e.bindbbdfbf9f5352e82051d2fef86af2580981ec93d889149806953f83601e0b96c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1286E | 17860 bytes |
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