MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, suggesting it's designed to hide its malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
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://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086edea274c0---91890638703.pdf
- http://d4scanada.com/clients/8/81/81a8d3ecf29e0a7d9042e8364394d873/File/37041431521.pdf
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/d764a726b0f36cedcb2baedd5aa6651d/66204569476.pdf
- http://dharmapremipariwar.org/userfiles/file/ruzusifugi.pdf
- http://kolaykanal.com/userfiles/files/guvufojaximak.pdf
- https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bdb9be71cef872fa8d23e0dc2c31be10/nuxapovememekejonegoginu.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fac5290bd1---29752168099.pdf
- http://hzjksj.com/images/upload/File/rixabimikeg.pdf
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/9a9b425c3d45feebfccab977ae981d8e/29924999839.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/d74e5e4e7c7fbf64e64830178442edd5/49015660478.pdf
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/910a1ae3d8cad9c7c04acab83ea0745e/15876094755.pdf
- http://poltinik.ru/userfiles/file/98199239573.pdf
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c051010d4bf---gezomipejixirulo.pdf
- https://bloomeng.com/uploads/22363343644.pdf
- https://coluer.ir/documents/file/puxopitedegolene.pdf
- https://yuss.it/file/4061768226.pdf
- https://oncallanatomist.org/ckfinder/userfiles/files/71465261779.pdf
- https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/442c10dd7afc12badbdc4d7c4c3ca8aa/93403485336.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2f704670c---11855950273.pdf
- http://udemadriatic.com/userfiles/files/22890010259.pdf
- http://pressvaluation.net/userfiles/file/23987349971.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/c344296c9afb4ce15279c65959301798/69588724674.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3a79c4135adcaba04698fd24e167641c/88197704543.pdf
- http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c0b10b179bb---71949943756.pdf
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/51863640879.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=chris+colfer+queen+red+riding+hood%27s+guide+to+royalty
- 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_off0000cb0a.bin0be50047652cd70efc08ef56ecdaf91f9030e6641f3d5bc2c26119bd14f31516 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB0A | 17168 bytes |
font_01_sfnt_off0000f7b4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7B4 | 16792 bytes |
font_02_sfnt_off00010fcb.bin2e87250c74644af148b400fe3410c033d9304cde306d81f573bd6692d54a1bec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FCB | 11180 bytes |
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