MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to external resources, many of which are hosted on compromised WordPress sites. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a pattern of distributing malicious content through link farms. ClamAV detection and ML classification confirm the malicious nature of the file, likely serving as a lure to download further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1529eda16cdf3a8e661b98f569531048/lejoxasolelolaguxuvejisek.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/166db711068a52733368f4ab3abd2591/17750591615.pdf
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/15rd016gjgvdm0dhanv4q2fqbn/13324978116.pdf
- https://chennothinterios.com/uploads/file/sovesaligol.pdf
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/suniwinejuzufo.pdf
- https://briljant-maleri.se/UserFiles/files/jodutoxelotidovo.pdf
- http://poorclarescork.ie/images/melagatanage.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160a026351e554---41283912971.pdf
- http://classicalgardenornaments.com/uplds/file/bedosusavirosojam.pdf
- https://cgeminfos.ma/upload/file/79885742565.pdf
- http://anquocrealty.com/uploads/image/files/3881859273.pdf
- http://axiomestates.com/userfiles/file/fasupoferevowoxifetolin.pdf
- https://asiabiru.com/contents//files/busuk.pdf
- https://kottayammedicalcollege.org/CMS/ckfinder/userfiles/files/35291162801.pdf
- https://nepalipublisher.com/ckfinder/userfiles/files/ranizadutopunatulejuto.pdf
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/pa5q2ist7165qrtb6n0kplu0si/12770135841.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609d251027497---20767637912.pdf
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160c07156d9186---34476586598.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/669a60fd40fb79b29883a2c29bfe2ff1/lawawijet.pdf
- http://kondicionery-dolgoprudny.ru/upload_picture/file/92946119214.pdf
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/e6d268c2fc3c7f65482cd751646918e5/53538232789.pdf
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/svdm36pnvass8kkapv3d0pi076/74876959302.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1607128791b58f---kapawugewagalone.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=old+page+texture
- 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_off0000bbcf.bin16109704185ef07266c4798adb05783beebd477ee59eaedea0172b46f1b5729a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBCF | 16452 bytes |
font_01_sfnt_off0000e67c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE67C | 16792 bytes |
font_02_sfnt_off0000fe93.bin7e3609be9362eadadfa43769248fb7406811a23f39b3a840014dd7c249779699 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE93 | 10308 bytes |
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