MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains a large number of embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users to malicious sites. The presence of these links suggests the primary purpose is to lure victims into clicking through to a potentially harmful destination, consistent with phishing or malware distribution tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://oniceh.ru/uplcv?utm_term=westminster+confession+pdf PDF link annotation
- http://szyoujin.com/UploadFile/file/20210904175101323.pdfIn PDF document text
- https://fptica.ru/images/file/suvasijefiza.pdfIn PDF document text
- http://mrpokedb.com/uploads/files/3764991932.pdfIn PDF document text
- https://kop-trans.pl/uploads/userfiles/files/kafosume.pdfIn PDF document text
- http://hk888.edo2008.com/com/comimg/file/20210910_153153_200.pdfIn PDF document text
- https://www.hkha.org/ckfinder/userfiles/files/14925518440.pdfIn PDF document text
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b5c11b432d---bovefusisevuwixaxedog.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd576506b6---57912212788.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/29460333769.pdfIn PDF document text
- https://pima-alarms.eu/slicice/file/22339390011.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/e0f3e1a47d4caec7935220e46c3f05e7/lazokibiwudusawavixumis.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140373b07394---20306859191.pdfIn PDF document text
- https://quanticabtl.com/cms_2018_quantica/sgi_userfiles/userfiles/files/91416922701.pdfIn PDF document text
- http://jgweld18.com/UploadFile/file/20210911003531433.pdfIn PDF document text
- https://mimpishio2.com/contents/files/36377437784.pdfIn PDF document text
- https://seedomoretravel.com/files/files/15950483766.pdfIn PDF document text
- https://netlandschool.cl/files/luguwororixamijexulaw.pdfIn PDF document text
- https://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/23516662901.pdfIn PDF document text
- http://casinodanmarkjackpot.dk/userfiles/file/74608739326.pdfIn PDF document text
- http://dobermanncz.eu/files/67503850998.pdfIn PDF document text
- http://fantalife.nl/userfiles/file/65638106499.pdfIn PDF document text
- 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_off0000b1d2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1D2 | 10564 bytes |
SHA-256: 47b5931a6d3e4a4f518e4312b78986ed147288a86d91b5b340dacb830f502e24 |
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font_01_sfnt_off0000c9e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9E4 | 16524 bytes |
SHA-256: 126ca342d20bfd2d510c0f711bbc1209b6c6e7b3a867af542b6ee7156e342f60 |
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font_02_sfnt_off0000f442.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF442 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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