MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggest a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the nature of the PDF and the URL patterns are indicative of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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 https://garglob.ru/uplcv?utm_term=home+and+back+button+not+working+android
- http://miskolciharsona.hu/pictures/file/30713492843.pdf
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/161326e3c254bb---20607699033.pdf
- http://rabwork.com/media/file/20980552713.pdf
- https://sydneystudytour.com/accounting/userfiles/file/27222610090.pdf
- http://geometrarontani.it/userfiles/files/bajinajen.pdf
- http://satyavnetworks.com/fck_upload_images/file/kezigu.pdf
- http://evo-models.com/uploads/userfiles/files/rejuwilabekukaka.pdf
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613952dd70d48---jozibozedojana.pdf
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/161457402e84bb---jekogidogegafaruf.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/c033cdd000e4119cde4b7f1ca9463689/14008108738.pdf
- http://autowagon.it/userfiles/files/62472348003.pdf
- http://konberdbio.com/upload/files/81129997278.pdf
- https://callmarkinvestments.fortunekenya.com/callmark/files/20451795530.pdf
- http://cropscipublisher.com/files/upfiles/file/betoz.pdf
- http://goldenstarhotel.vn/images/uploads/files/48073845185.pdf
- http://www.szphotar.com/admin/img/files/84658940936.pdf
- https://tahitotfalu.hu/ckfinder/userfiles/files/32481440728.pdf
- https://granitnet.hu/editor_up/81058885541.pdf
- http://uforoi.com/app/webroot/uploads/files/95846267001.pdf
- http://optimaglobal.net/ckupload/files/18742617009.pdf
- http://sashtraayurveda.com/ckfinder/userfiles/files/lasubivupamogejurewaz.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1614542cae2857---sirixaniv.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_off0000add4.bin2a32600be2cb5ed9836346f69cc63010e553017fdeefd35f4af5932992e7a5d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADD4 | 10908 bytes |
font_01_sfnt_off0000c6d7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6D7 | 16792 bytes |
font_02_sfnt_off0000dee9.bin608a0dadddab4f4dd1117bc63e7e92173c5f6ce2a16f18ca29a6bc95b8b03b23 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEE9 | 15244 bytes |
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