MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The presence of a link farm on compromised WordPress sites further suggests a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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 http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/2ed6fae1e0132080d4d67ea8be874bf5/76349225312.pdf In PDF document text
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9d7773e1ab---64523790611.pdfIn PDF document text
- http://sivam.pl/files/file/sojipo.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/hml7osgrchc426odrvnk9hf881/zutijitilurebutilipogom.pdfIn PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/7de0ee22211172bce443acec5dede07b/solinote.pdfIn PDF document text
- https://osikovo.eu/webroot/img/content/files/ferodegerudifuw.pdfIn PDF document text
- http://americansemitruckparts.com/d/files/lomofobasixadowazixa.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfe834997d8---19945084084.pdfIn PDF document text
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/s2so6f0dmkguv7g9occ9e3hv1k/58376678134.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/9bpnuooafin3c1oee20tuv7dlt/39944191123.pdfIn PDF document text
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/mf1dafo8gc3i3tocd6kp48a5p0/mutebovefumubedadapinon.pdfIn PDF document text
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075100c36e5e---31602593671.pdfIn PDF document text
- http://lycee-elm.org/userfiles/file/2972669639.pdfIn PDF document text
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607595ff404f9---98197342087.pdfIn PDF document text
- http://remobudostol.pl/pliki/lixajeb.pdfIn PDF document text
- http://bakoca.hu/files/file/bufik.pdfIn PDF document text
- http://dzstock.com/Upfiles/file/5714985315.pdfIn PDF document text
- http://narzedziascierne.eu/Upload/file/joxun.pdfIn PDF document text
- http://tatvideo.ru/ckfinder/userfiles/files/labekubeve.pdfIn PDF document text
- https://abeess.com/userfiles/file/mazatojarirapejurufusuj.pdfIn PDF document text
- https://palcev.ru/userfiles/file/zodimuxexojemelij.pdfIn PDF document text
- https://www.hemingway.bg/app/templates/js/ckfinder/userfiles/files/27037125204.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8464bacd49---9458271877.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c33cb4475b8---12791899063.pdfIn PDF document text
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/c2222eb04e27d4dc37b8d9b0a3b4a015/womojazarozo.pdfIn PDF document text
- http://nakatka.com/files/file/90490878461.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=panchatantra+tales+in+telugu+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d8e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8E1 | 23920 bytes |
SHA-256: ccffe5e34b853a5cd05783a0a35f13b11e15191975ea73af2c83932d06a0e406 |
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font_01_sfnt_off000116b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116B8 | 10880 bytes |
SHA-256: 7c4657189099024afaa3f865c3313c84a8afe6deabb183ae2cdd69e303ab4ce6 |
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font_02_sfnt_off00012f94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F94 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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