MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting. These links form a link farm, likely intended to redirect users to malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://ngoctraithaibinhduong.com/uploads/news_file/sibiramuvawo.pdf
- http://carnavaldemarbella.com/Senegal_5/Content/files/userfiles/file/51678816271.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9a70bd0dbd---32670300382.pdf
- http://sowitech.vn/upload/files/83570242682.pdf
- http://animalscipublisher.com/files/upfiles/file/92123835329.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/a173bded73e0e2705b53551fd044b0b6/medemutewowopobagavu.pdf
- http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a31ceef044---xaxalix.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608389beae0fa---12717245268.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/84f000f92a41f7a969e73adcfe246c6f/fomuz.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/44d4df29c754d941d424f3d153664752/xojirebonaxif.pdf
- http://cukiernia.eu/upload/files/45746259159.pdf
- http://studionegro.net/userfiles/files/2970539460.pdf
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608872e6cdbcb---pubusuzapujafisaruje.pdf
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608307d8191eb---93017569411.pdf
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094dd7cc6d48---levakebenezowoduwekulaz.pdf
- https://avigailpekelman.com/sites/default/files/file/43542626666.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f3c10c6df30---xujarerilij.pdf
- https://zoldlepes.hu/userfiles/file/78728722743.pdf
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086f88e12f74---purexiragaxalijevuwemiki.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd19895ea0---tevogafaludeminer.pdf
- http://easyreturn.store/userfiles/file/46336000933.pdf
- http://upbfassadenbau.com/upload/file/11454448315.pdf
- http://shlawllc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lezuj.pdf
- http://ei-windykacja.pl/upload/file/fosunogan.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=pell+city+drivers+license
- https://mediacentre.aerlingus.com/js/ckfinder/userfiles/files/xugifika.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_off0000f2ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2AD | 16792 bytes |
font_01_sfnt_off00010abf.bin6400a06c1e73da9e5c850d028ec384157991397b105bbb92d9be3956ad91e7e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ABF | 16756 bytes |
font_02_sfnt_off00013627.bincfc9b9aa8f1d2efc301d3c1a32693e9644b813471707692e463e0049def8c6a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13627 | 10264 bytes |
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