MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing or trojan delivery mechanism. The embedded URLs and link farm heuristics indicate a strong attempt to redirect users to potentially compromised websites. The presence of multiple URLs hosted on various domains, many utilizing WordPress plugin vulnerabilities, suggests a broad phishing campaign or a method to distribute further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.8284
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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://irlanc.ru/uplcv?utm_term=lonely+planet+cuba+travel+guide+pdf+download PDF link annotation
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c84b77ba4a---dedurasojuvatiketanutel.pdfIn PDF document text
- https://hifi-markt.eu/kunden/kronhardt/ckfinder/userfiles/files/532620741.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160748dca5af53---58925400098.pdfIn PDF document text
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b8912d04357---2396814998.pdfIn PDF document text
- https://medtek.vn/storage/file/15596145585.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d6972a2a4b---50765691674.pdfIn PDF document text
- http://dwhs79.com/clients/15834/File/wesarexu.pdfIn PDF document text
- https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a961eae3915---zelib.pdfIn PDF document text
- https://tempegaring.com/contents/files/kamevabeparagazetemu.pdfIn PDF document text
- http://tingchucontrol.com/Uploadfiles/files/73641520612.pdfIn PDF document text
- https://marblobath.com/app/webroot/img/files/gelararirax.pdfIn PDF document text
- http://liyangah.com/Upload/file/fubupawipodulotonak.pdfIn PDF document text
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6bf47d11dcc31d8e09f367448b0ac92a/79354536782.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c7ac39c4c87---batazix.pdfIn PDF document text
- https://alianzatours.com/imagenes/file/fogowu.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e386446f9---welajoxisewuzana.pdfIn PDF document text
- http://riversreunion.org/clients/8699/File/46750888737.pdfIn PDF document text
- http://specimport.by/files/files/makafaluli.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16106d71538593---66952255216.pdfIn PDF document text
- http://laweasy.kr/userfiles/file/nepilenuliwamak.pdfIn PDF document text
- http://mckeoughfamilyreunion2021.com/clients/b/ba/baf9e6b347377fae0abe5a87436fc4cf/File/70286337887.pdfIn PDF document text
- http://alconburyreunion.com/clients/36523/File/57272437462.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/2cee247d761197a0852e64502a8a1f38/jiwulobodolo.pdfIn 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_off0000db78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB78 | 11088 bytes |
SHA-256: 742e1b57fcc638b1891796e7882ec660f19379c0d73890fc6dd8b80cdb5eb361 |
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font_01_sfnt_off0000f514.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF514 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010d26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D26 | 18564 bytes |
SHA-256: 351808c705c2973cf469930f45d3fa24fe0524190c5da66b111a1f7780947bf0 |
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