MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, suggest a phishing or malware distribution campaign. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and 'Qt', indicating it was likely generated by a tool rather than being a standard user document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9999
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://nomylo.ru/uplcv?utm_term=corrig%25C3%25A9+bts+sio+2015+eco+droit
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608f51568e5ef---jafonomivusitinosesosezar.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b2dc36d9088---99603468551.pdf
- http://rolmech-strzelno.pl/Upload/file/44828721430.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/88mcic3427j34u1t3uis8o9qf5/53978729059.pdf
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609f75e816283---lolozerexepifir.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160753555454e2---33908526180.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1609a5cf597792---numufuxukedunaru.pdf
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160736e0bcd0b2---jitufobazisaputazox.pdf
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/cd4b98ed486c33e8036f562bf7bdf0e4/pevuduv.pdf
- https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/1a5aa91ac45c2e27e74cae5d4cd32e1a/rapodawoza.pdf
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ead4277cf1---basolonivob.pdf
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/a000948bddd9883bf9d0f4be61af05b2/jusub.pdf
- https://juhaszautovill.hu/userfiles/file/77525555122.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160952fa682f00---80430546769.pdf
- http://ed-web.cz/userfilesfile/82337578610.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/85c4s4dl7colqodsiqfnorpdn0/83385562923.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e31c.bin12f9dcbc9d91ed6e399f38ab9355d3337f73a378fd0a72fb472b36e4b498cb64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE31C | 5504 bytes |
font_01_sfnt_off0000f5a2.binf529c431e2f6f05699a98aaec09a75b601729b6c5057bf7442d18c38bd975aff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5A2 | 11988 bytes |
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