MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple compromised WordPress sites and disposable hosting, indicating a phishing or malware distribution attempt. The 'SE_CALLBACK_LURE' heuristic suggests a pretext for users to interact with the malicious links, possibly related to billing or support scams. The ML classifier strongly flags this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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.tamtrebinhminh.com/public/files/zeloduvajanebudaberal.pdf
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/20dd8c651481bfb61e979b4913120768/vijiviwakapubakifel.pdf
- http://bsp-oblspl.org/ckfinder/userfiles/files/39753210202.pdf
- http://synowka.pl/galeria/file/55882488896.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/d6416a9569b8b50a72652fcd00b1834e/90755813994.pdf
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/7c38e9c0438a93810551349886067aac/25784142134.pdf
- https://melz-feu.ru/upload/kifixelejuvexapizulip.pdf
- http://royalrep.com/userfiles/files/xesuletij.pdf
- http://tingyi-bnb.com/CKEdit/upload/files/92656787859.pdf
- http://popnmusic.fr/userfiles/file/jajajutaponoweju.pdf
- http://ghalemdi.com/userfiles/file/mowifi.pdf
- http://americandeliorder.com/uploads/files/gumepowu.pdf
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a33a01cafc8---42910127605.pdf
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160edf1740b359---65539132638.pdf
- http://anhuizhkj.com/upload_fck/file/2021-6-4/20210604194408832375.pdf
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160943e8e229e4---96900922443.pdf
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/494c80cbabbe4ed18fdb22a8e2fa30a2/6863081196.pdf
- http://travellightnepal.com/userfiles/file/68356320141.pdf
- http://kvbm.org/pds/userfiles/files/gujok.pdf
- http://sjar-tech.com/uploadfile/file///2021060500220381.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608498ba04baa---60810780743.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160c43edb91b51---jufixu.pdf
- https://srldirect.com/ckfinder/userfiles/files/wujenijab.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=history+of+english+literature+by+raghukul+tilak+pdf+download
- 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_off0000d30e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD30E | 16792 bytes |
font_01_sfnt_off0000eb25.bind546f38dd43c39e2668b11c50803bcb7cfe5377eaa0276f92fb7b8c44c57d69e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB25 | 11300 bytes |
font_02_sfnt_off00010547.bin6ab2e8069e391473a1d82c0b7faff909a5e1517af551b9e3ddf4b26d5d9f6ccf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10547 | 16616 bytes |
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