MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised CMS uploads and disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of a QR code lure further supports a phishing attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://crewmak.ru/uplcv?utm_term=how+to+scan+qr+code+already+on+iphone
- http://china-engine.net/ckfinder/userfiles/files/tigazajedej.pdf
- https://xyoaa.org/sites/default/files/files/bulalenevukanilagoko.pdf
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/df97fdecf462c5f5605f009b35826aab/39727042304.pdf
- http://chi-kara.net/Upload/files/88652142192.pdf
- http://tms-technology.com/ckfinder/userfiles/files/10975861091.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc4ae4cb52---zaxolabizefibekajewusa.pdf
- http://tasfor.com/files/galeria/files/84062708399.pdf
- http://dom-2000.ru/ckfinder/userfiles/files/tapifolar.pdf
- https://ostrichpharmaceuticals.com/userfiles/file/lezaxezotuniro.pdf
- https://eventpro-kontraktorpameran.com/uploaded/files/47615223516.pdf
- http://zussobrance.sk/grafika/dokumenty/sazepiluvonajivakofelutem.pdf
- https://samajsutra.com/userfiles/files/xawekivokiridub.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613f87686920c---94119453036.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/e9b44443dc2fd3a02c2fa77257a489d1/7353048987.pdf
- http://www.smartlandgroup.com/ckfinder/userfiles/files/35303273289.pdf
- http://mylivediamondinventory.com/uploads/files/4926560165.pdf
- https://wecareprogram.org/images/file/47322955216.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/55577f5dfa64df36b2f6734675b76689/33468415260.pdf
- http://patanjali.zohukum.com/ckfinder/userfiles/files/mijanaribimekilosimipez.pdf
- https://rallstarawards.us/nbloom/fckuploads/file/liwumusutupuxaz.pdf
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/16145f5c6a9734---28326899407.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613131ab4226b---dupijopugalawovisoxarofes.pdf
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612ffc578ec45---sobamigijub.pdf
- http://mptech.vn/ckfinder/userfiles/files/38476759632.pdf
- http://panel2conso.com/userfiles/file/75843780525.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_off0000db14.bin0eb3986d6df5c5c1f96282c4675121d6b71451dccc53730e1e98962a0305c52b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB14 | 18064 bytes |
font_01_sfnt_off000109c1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C1 | 16792 bytes |
font_02_sfnt_off000121d8.binca7d15030d4a0c636260cd7678a48c42ee57d47afbd4f42c2d1f00b859a18162 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D8 | 10948 bytes |
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