MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm pointing to compromised WordPress upload storage. The document body is heavily obfuscated, but the presence of numerous URLs, many hosted on potentially compromised sites, suggests a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure itself is leveraged to host these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 6
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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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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://bakerfamreunion.com/clients/1/13/13be4b03bdabdd3a133c3ee64ed6201b/File/6685640562.pdf In PDF document text
- https://cowichanmusicfestival.com/userfiles/file/nudavuvabalefovadapabi.pdfIn PDF document text
- http://classicalgardenornaments.com/uplds/file/29072940871.pdfIn PDF document text
- http://888spirits.com/userfiles/file/sitisamelad.pdfIn PDF document text
- http://isleford.com/filespath/files/20210825162656.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16091049cd681d---risetukagugiki.pdfIn PDF document text
- https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/939f8d081742dc14e394a7853386ab8c/81236141864.pdfIn PDF document text
- http://ecohort.com/userfiles/files/zamafoz.pdfIn PDF document text
- https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/d7f4d7c6ab9e9b7398ed704dffb5b93d/kejamavazif.pdfIn PDF document text
- http://solmoda.it/userfiles/files/rufirasofodobuvilavobi.pdfIn PDF document text
- http://niezapominajkowo.eu/userfiles/file/83190069814.pdfIn PDF document text
- http://hanleyresources.com/images/nafilojiguvirawez.pdfIn PDF document text
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c384d3bcc21---12741514767.pdfIn PDF document text
- http://jingyilin.org/uploads/file/78392015491.pdfIn PDF document text
- http://vladekoservis.ru/files/gukarupakikarefusorigowu.pdfIn PDF document text
- http://easternsheep.by/app/upload/file/xudiwem.pdfIn PDF document text
- https://tortugafilms.ca/adminfiles/file/lerozevipipimumor.pdfIn PDF document text
- https://doctorchina168.com/upload/files/bamikebukofedudofona.pdfIn PDF document text
- https://85097781.com/upload/files/dorodijufada.pdfIn PDF document text
- https://arket.io/wp-content/plugins/super-forms/uploads/php/files/lalcc44nsuq4l0nuvfn0tgpfgt/46126392110.pdfIn PDF document text
- http://studiofagiani.eu/userfiles/files/5943083394.pdfIn PDF document text
- http://katyababash.com/images/uploads/file/negujurexizada.pdfIn PDF document text
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/99ce3167378d8acb2db256c2bb5d7836/kuwuvulasoturov.pdfIn PDF document text
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767cbceb408---sesidetobukogodab.pdfIn PDF document text
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/997f1713511e2b0a8f9898f2ed082d09/55603919585.pdfIn PDF document text
- http://dirpub.org/editor/ckfinder/userfiles/files/lutururexugukoputuf.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=bodily+kinesthetic+activitiesPDF 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_off0000ed64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED64 | 17936 bytes |
SHA-256: b6b3b1c39cb8c9d1740224dabb921b8d9ec20294955d3f85c235cf2911689265 |
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font_01_sfnt_off00011b52.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B52 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013369.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13369 | 10692 bytes |
SHA-256: 27c3ed12e984d4fe74f2c4010867a968a9e00815fe99087a6fcab2ae2a121c9e |
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