MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The sample was identified 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 WordPress sites hosting other PDF files. These linked PDFs are likely part of a phishing or malware distribution campaign.
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://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160820fd07f91f---59958351894.pdf
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/791fc6a6626c21b2b6568ce025f8179e/67942080617.pdf
- http://gilendor.cz/userfiles/file/xofiperulafad.pdf
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/a8ec89acf7f527ff83d324e947c5700b/98507875293.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/2acc665d01b890c4ba6c3d7e31f31ef0/52003832025.pdf
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607d01b7c96c8---40255648354.pdf
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b432deb27e4---kefakorawojob.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609d344a5f496---17833100957.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc9479f866---pifuxipenikalavebogi.pdf
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080b97a664da---tekilogewabetepepumoma.pdf
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b1d643903e0---86300894324.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7bf8db9e0961ad0e7dfb3c7db7c13b82/bupevirimizoti.pdf
- https://liderpin.com/calisma2/files/uploads/xerezagofulad.pdf
- http://saydersan.com/firma/files/zosedinefawope.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9fa8e25902---daget.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/691ff6b7c9c4e5dcde08b98420433644/31070622049.pdf
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/2f0fe339ae98a65600551b18ff73bef4/94522557904.pdf
- https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/f7a51c770b48909b8bc1fb6b40a5bf1b/pomaxivexiziliwutup.pdf
- http://quaker1960.com/clients/3/34/346d0055920ff30d27c63167e405b0e7/File/59434175444.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/2e1146ef98613f7ca15589977e58e7ad/togepagakajovalew.pdf
- http://zhengfutz.com/v15/Upload/file/202151373228907.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=algebra+word+problems+worksheet+with+solutions+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_off00011e6f.binf3ad26826a1779decb8e7a1cb53cdb0f0e5315cd52ca62ecb3f6556ece1955c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E6F | 17820 bytes |
font_01_sfnt_off00014d54.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D54 | 16792 bytes |
font_02_sfnt_off0001656b.bin361b19b1f406d548eb367123ff858af289a6faea54c18db4421c0d0371f593f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1656B | 11344 bytes |
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