MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, embedding numerous URLs that point to potentially compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farm indicators strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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 https://laborke.ru/uplcv?utm_term=call+rest+api+from+android+app PDF link annotation
- https://probidjp.com/ckfinder/userfiles/files/20210911_063242.pdfIn PDF document text
- http://arebiatours.com/uploads/files/57937125801.pdfIn PDF document text
- http://zamel2.pl/userfiles/file/vowomibogavixewug.pdfIn PDF document text
- http://kubabus.cz/novy-web/upload/file/83026486250.pdfIn PDF document text
- https://manenshop.com/upload/files/kabijejavijazizanowomozol.pdfIn PDF document text
- http://invismortgagebroker.com/images/file/84876929651.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147cfaab3313---fawir.pdfIn PDF document text
- http://videlec.be/ressource/file/7795329174.pdfIn PDF document text
- http://phuketdriveschool.com/userfiles/file/9202830052.pdfIn PDF document text
- http://associazionemillesogni.it/userfiles/files/13850725010.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/9vcqsq9668o9pqqs37maud2ap6/70141348584.pdfIn PDF document text
- https://somogyplusz.hu/files/47530266719.pdfIn PDF document text
- http://evolution-dev.com/file_media/file_image/file/80190937809.pdfIn PDF document text
- http://fixafilm.se/userfiles/file/zunavopovisu.pdfIn PDF document text
- http://autofox.lt/ckfinder/userfiles/files/20952421876.pdfIn PDF document text
- https://next-engineering.com/userfiles/files/31411577637.pdfIn PDF document text
- http://edisonprivateschoolbeta.com/cote_dor_import/admin/ckfinder/userfiles/files/37834326352.pdfIn PDF document text
- http://sgd42.ru/userfiles/file/68864382707.pdfIn PDF document text
- http://dietaltop.com/userfiles/files/kibam.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/ec941a8106d2a0d86d71a4217dc55c41/wemakowojuwaratugosorisex.pdfIn PDF document text
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/25c68c6d7572f947d6b490a237bdf1ab/67911571755.pdfIn PDF document text
- http://lagunaapartman.hu/images/user/file/tupudog.pdfIn PDF document text
- http://webbuilders.com/files/file/kidoxifijinufilironupin.pdfIn PDF document text
- https://autopits-directo.migrupoq.com/ckfinder/userfiles/files/zawunijuwufasotepokegur.pdfIn PDF document text
- 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_off0000b383.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB383 | 10692 bytes |
SHA-256: 58fbf11876664a0c9ed32617054481d877e5e194701e3e82624b5b40e7546540 |
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font_01_sfnt_off0000cbfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBFC | 15792 bytes |
SHA-256: 5eeb8fca2b401f3eedd2ae48079df20d792e45cd8d5cac1dad683e4441e12bdd |
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font_02_sfnt_off0000f448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF448 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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