MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to disposable hosting sites, indicating a link farm designed to distribute malware. The presence of a 'download button' heuristic further supports the lure-based attack pattern. ClamAV detection and ML classification confirm the malicious nature of the file, likely serving as a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://bdnchem.com/upload/files/radorusivipunelufikuxeja.pdf
- http://aa-nusd.jp/jeluwafapesowigedawuf.pdf
- http://honghuibio.com/d/files/70282361652.pdf
- http://fermobkorea.com/userfiles/file/20210903130617.pdf
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/dfd3d99076fc1e9b510675a211069c46/zewevotozi.pdf
- http://islenapuntos.com/campannas/file/39876743535.pdf
- http://hzzxtl.com/UploadFile/file/20210913080411782.pdf
- https://beauty-full.ru/uploads/files/depatatokotedaw.pdf
- http://chokmanee.com/userfiles/file/86843410406.pdf
- http://pagyesa.org/userfiles/file/20210903031738.pdf
- http://piqiso.ru/userfiles/file/62818157874.pdf
- http://cisseo.net/userfiles/files/51460756630.pdf
- https://tunhuaduytan.com/upload/userfiles/files/6138651916.pdf
- https://smg.bid/ckfinder_userfiles/files/pedon.pdf
- https://eghamatkade.com/basefile/eghamatkadecom/files/jinapuxevusika.pdf
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/7280baba06025dce4c6e5bef145894b9/43537247791.pdf
- http://eaas-journal.org/survey/userfiles/files/rojebatomodakojobalupona.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613433c95cf9a---18163317709.pdf
- https://watosaphotography.com/app/webroot/userfiles/files/20210917_200801.pdf
- http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137e8f0c5db3---52481938954.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133979de5d41---dajufezovelasasa.pdf
- https://gegeny.hu/uploads/file/vorimilebuwegesa.pdf
- http://habitat3.eu/userfiles/files/fafuruvedovaraxedibob.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=best+offline+music+downloader+for+iphone
- 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_off0000d23a.bin87ab7ad889a40b524012a2dff5b204d1d5ef7a09f0f240b3405fe426f2117c40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD23A | 17560 bytes |
font_01_sfnt_off0000ff79.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF79 | 16792 bytes |
font_02_sfnt_off00011790.bin67c30c885ee271fea305d8b2cb202730dcaa9b852d274fec136d072bf07bdf62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11790 | 11124 bytes |
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