MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm. Multiple embedded URIs, including one pointing to a raw IP address and others hosted on compromised WordPress sites, suggest an attempt to redirect users to malicious content. The PDF document body is unreadable, but the heuristics strongly indicate a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/avc9oi8lc5l5v08h1irp8qo2l4/98925899784.pdf
- http://vattucongtrinh.com/userfiles/file/lagepasirozofasen.pdf
- http://sp2wronki.pl/fotki/fotki/file/48703892658.pdf
- http://esistore.be/userfiles/file/kezazonuv.pdf
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/f337cd4219313c0ca16297105bae91e1/rakozogagu.pdf
- http://morebricks.com/ckfinder/userfiles/files/xulojadanexalapirejadixo.pdf
- http://tsradviseurs.nl/mailing/images/photo/file/82967898200.pdf
- http://cl-metalparts.com/d/files/62323053561.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/4a5c23191a02d0d5ca6216796f2e235a/20307247321.pdf
- https://mtestbd.com/assets/uploads/files/kevifowa.pdf
- http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gegowoluz.pdf
- http://aurastaffing.es/upload/file/38920338730.pdf
- https://sthouseluxury.com/upload/files/67472861954.pdf
- https://underworldgear.com/admin/images/fckImg/file/11258310062.pdf
- http://law885995.com/upload/fckimages/file/54520621363.pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/857b53dda18de936db155e60b17f4814/domor.pdf
- http://157.230.241.115/image/upload/File/57543458386.pdf
- http://hanhthien.net/uploads/file/68025605122.pdf
- http://www.peritaonline.es/ckfinder/userfiles/files/47245434928.pdf
- http://darslaska.org/ckfinder/userfiles/files/goxuvuxarumaroku.pdf
- http://dd-eng.com/files/files/nekefulelawuvilev.pdf
- http://imoroz.by/upload/file/99925806246.pdf
- http://brno-skoleniridicu.cz/ckfinder/userfiles/files/42845141071.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=silent+camera+app+for+android
- 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_off0000bc96.bin92b9cd3e512278cbbaa91a848a5bef3cce7b8b9a03ce212f2d061f8ef6364599 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC96 | 17668 bytes |
font_01_sfnt_off0000ea52.binf9353882efdfe81dd58d8aa473595095d1fb5bb4da16e1feedad4cdf0bcaaa5f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA52 | 10688 bytes |
font_02_sfnt_off000102c3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102C3 | 16792 bytes |
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