MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Multiple heuristics point to the PDF acting as a link farm, directing users to various compromised WordPress sites. These sites host further PDF files, suggesting a multi-stage attack or a phishing campaign. The presence of embedded URLs and the nature of the heuristics strongly suggest the document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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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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 http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091eb3a1a0a7---nuvumavupe.pdf
- http://olneyjune65.com/clients/d/dc/dcef5d22f85ec69f5810ba62c2e8cf46/File/8475950172.pdf
- http://www.knickmeier.net/images/pageimg/file/xonemalanogus.pdf
- https://hotelmitrutarija.com/uploaded/files/gixaguxakodaduwewuwo.pdf
- https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/59ae05a114a3959f55f3cfacd52e0e15/zuwitazurajuxijerexus.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a67551c3eee---nimafafojoro.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160b59e9f311d1---jexiworadunogezo.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160afc0460181c---tifedipipiguf.pdf
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/gst1nqb94rflnqe7g1rmftuoaq/xitimadogexetimutexo.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160718afba679e---kibenuv.pdf
- http://simonhoirup.dk/userfiles/file/40706343730.pdf
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095de6f36547---begazeder.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609f981ec9a0c---zafokizaxasojawebiga.pdf
- https://abandassociates.com/ckfinder/userfiles/files/42329796667.pdf
- http://inezorviskids.com/clients/37546/File/wafisavojikuro.pdf
- http://stepsforstarlight.com/clients/c/c6/c668404594a1c08d975ab50c7bec58f6/File/15567257870.pdf
- http://haozuowenwang.com/imagefiles/file/65653396552.pdf
- http://ketnoikienthuc.com/upload/files/jikeresajuwep.pdf
- https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/327f124a76c608e5d7785a8637c63304/96142127167.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16088074001db3---figinikobodubapizosinub.pdf
- http://schokoladenfontaene.de/idata/zulopenugig.pdf
- http://nutricion-intravenosa.com/wp-content/plugins/super-forms/uploads/php/files/134a3173a388032084d5f2412032758b/23274601935.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/16088fcb8b6836---xuresofegogigelo.pdf
- https://nestaerospace.com/uploads/file/38922657195.pdf
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16071608ac116a---33989717743.pdf
- https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/903d4ae5547f943788eabc316f4ac187/23788726566.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=comparative+and+superlative+worksheet+with+answers
- 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_off0000c353.bin3d371ca3ec8da58df78a65ca98d13f78ccd4be3baf6b5c390ff0520828251a6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC353 | 16760 bytes |
font_01_sfnt_off0000edfd.bin5d114c238484b1ef0cf35c19d8a7f17871e9b71980039a21afbb268d326bc7cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDFD | 11032 bytes |
font_02_sfnt_off00010786.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10786 | 16792 bytes |
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