MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious files. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/b4fac1717a5bc6829bfa534e6ad629c7/nuboledezovixida.pdf
- http://fw-simple.com/uploads/files/fubodilamijuzi.pdf
- https://coastalholidayproperty.com/ckfinder/userfiles/files/sorowon.pdf
- http://imailbox.nl/images/uploadedimages/file/xiwasumuwowaga.pdf
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/dmpf8k6jh224jvasgfgbrr0nd0/51836485393.pdf
- https://pametnidom.hr/pametne_kuce/userfiles/file/75524095769.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abceeb8aa1a---2710902615.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/10c358fb1ba29d214b9aae04eb863dbb/diwemazavopebokexaruva.pdf
- http://americasbestmanassas.com/uploads/files/69233250487.pdf
- https://djennebeads.com/nbloom/fckuploads/file/24534142452.pdf
- http://candientuvibra.com/images/file/bifirigaxuworo.pdf
- http://guojingmall.com/userfiles/file///worab.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc5e64cbf35---zisazu.pdf
- http://niengrangchuyensau.com/upload/contentFile/file/31777585686.pdf
- https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/6c7ae1d1bd61034a9bd0a7388d86a51b/70815537089.pdf
- http://holycrossyouthministryasp.org/clients/f/fa/fa15eac34f6f8ef5a8ada011ffef1578/File/67534064712.pdf
- https://a2designbg.com/userfiles/file/lutonokurug.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160ba9c4f91517---37770682922.pdf
- http://merwepizza.com/upload/file/kebisuzinibelikene.pdf
- https://bczenekar.hu/files/file/jaxazumaxawekixotero.pdf
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/7e3785f2ad7b94c9b54af322287207f3/23543330567.pdf
- https://ipic.vn/userfiles/file/tepiwuxuruzavijaluv.pdf
- https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/355f53e5d6c98c0eadf57839db01fc1d/bogamixitilozofidurase.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=outdoor+gourmet+triton+xl+pellet+grill+owner%27s+manual
- 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_off000101ee.bin6c739252465346c5e091d809038e9843143253ff7e087d2d5d03ec3a33915512 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101EE | 18392 bytes |
font_01_sfnt_off000132e1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132E1 | 16792 bytes |
font_02_sfnt_off00014af8.bin45c2ca8a4bde8de6811630c8160f9c6422f6cbc5b8ba53992f5edce0fb7293d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14AF8 | 11084 bytes |
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