MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The file also functions as a link farm, directing users to multiple compromised WordPress upload directories and disposable hosting sites. These elements strongly suggest an intent to phish for credentials or deliver a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://krisoc.ru/uplcv?utm_term=how+to+improve+your+grip
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608169e8c2f5e---tazexejelumugevejedojokaf.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608413fedd03b---gideliromibazume.pdf
- http://abwcrainhwy.com/uploads/files/nolaro.pdf
- http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16070d0641285d---davek.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dea8fd77d1f---93816727156.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad2eda44099---51491370041.pdf
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082a1fca2466---forevowepegijewuba.pdf
- http://mundori.com/js/ckfinder/userfiles/files/68269591119.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/6f0322870def92e475da9162583e8044/85144461134.pdf
- http://orgue-chantepie.info/FCKeditor/upload/file/dotuvipifoxigixizal.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160adcdb149d38---ziwalesozubabugaw.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608620af1b8e3---21897093232.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8ddc82c4b5---sijipovapaxaledegunumu.pdf
- https://doctmcooper.com/userfiles/files/kosujomuvodepakupi.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3d4f60d789---dudokisaxer.pdf
- http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/44jf9peqb5irhnpo0a2paq96o3/gobisedufa.pdf
- http://www.jobsincrete.gr/images/_user_na/file/14599480250.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16076af1526f8e---53117987813.pdf
- https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/efb7396c414657a531781d8b2d46ef58/86630701962.pdf
- http://fashioneducation.ru/userfiles/file/xunonifedezirilojem.pdf
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609612e248210---24212713390.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_off0000f820.bin4f4d652cafe4a6e9994585c49c23746c3ff00cc87146507a6a73ab1131d929a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF820 | 17088 bytes |
font_01_sfnt_off000124d3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124D3 | 16792 bytes |
font_02_sfnt_off00013cea.bind928f0576eebff86c4318182654b977bd65e4f58b847657458b03ca0f75c3fac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CEA | 10472 bytes |
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