MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution intent. It functions as a link farm, containing numerous embedded URLs that point to potentially compromised websites or disposable hosting, likely to redirect users to malicious content. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights the non-clustered nature of these links on disposable hosting, further supporting the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://archism.ru/uplcv?utm_term=homestead+exemption+chicago
- http://cherishedmomentphotos.com/clients/8/84/84fe84b553acfcd191e166b7401b6f02/File/56477851221.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ace134c44---saxetibumugibimiwosada.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b22be2939c---lubujapaxenazovaf.pdf
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ebc1365398---48281831530.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24fd5c4f9e---naxezoboxidud.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a0a75b3b2---zeboz.pdf
- https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/839c296f6be24e1b21ebb080cb99e725/83701967824.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ea39db9c6---91491614828.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/u8lohq28v613a7d6tr51jtljo3/29119253530.pdf
- https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/786a90e5012b50c52ca4dd2e535508d6/67939873255.pdf
- http://radio-salsa.com/php/rs/filesupload/file/pevevetitukoxijusamu.pdf
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087b753756e3---25037396123.pdf
- https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/b10e924fa412f285a929ced5dd94e8dd/nunisoda.pdf
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/60589102a690be91e5a5f55ec54efc62/43646869039.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b5a225ec081---7455621461.pdf
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac607d33f41---69970017482.pdf
- https://norservis.com/files/files/18597135118.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4cb9e5dc42---46887072154.pdf
- http://ajarnveerapong.com/UserFiles/file/33446246776.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc241ea211---jenuvawibebanel.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bcf3583f26a---suwetiwu.pdf
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b2912cb89f6---12085188524.pdf
- https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/d544008bc9bac149b29593b28046b473/21460175796.pdf
- http://castudio.eu/userfiles/files/88010824704.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_off0000ec0a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC0A | 16792 bytes |
font_01_sfnt_off00010421.bina867923fcd81ca6a337781495905367a0644b8d525ab291f9e1a0ace2524f985 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10421 | 10908 bytes |
font_02_sfnt_off00011cf6.bin8af46006ed712b75099e81c3c1c3c9ba72857a8366d8503b3df7f33b09afcaf7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CF6 | 19316 bytes |
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