MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress upload storage, suggesting a phishing or malware distribution lure. The presence of embedded URLs and the nature of the heuristics strongly suggest this document is part of a phishing campaign, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://archism.ru/uplcv?utm_term=how+to+make+your+anime+face+maker PDF link annotation
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1607698dca18de---zozixaxiwuweniwifetuzutuv.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/160aeca3d0bcc7---wibiguxegatebuxefopo.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160986eb50a957---fatusumomoxoxixotalukuned.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1607b248fed312---mefozeli.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c0813e617f1---vijadeneka.pdfIn PDF document text
- http://sushiloverca.com/uploads/files/mixotuwika.pdfIn PDF document text
- http://yjsyrj.com/userfiles/file/ruxumadevuzuravugisap.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160822e9cbd88a---46936482714.pdfIn PDF document text
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b64359c196e---vunufisoruvagasodofogex.pdfIn PDF document text
- http://folientastaturen.pl/_data/file/6111536892.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16111a59d598e3---45686832061.pdfIn PDF document text
- http://praguetransfer.com/files/file/tonevixepezijasizidigagim.pdfIn PDF document text
- https://www.colline-eternelle.com/ckfinder/userfiles/files/5924994787.pdfIn PDF document text
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/688c48c7bf5d25efb107ad408e3b3081/budejusovomexaver.pdfIn PDF document text
- http://schokobrunnen.com/idata/tasoboxovilosemalapukulob.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/nodudasu.pdfIn PDF document text
- https://grupo-kayros.com/userfiles/file/bumipugak.pdfIn PDF document text
- http://garmagostaran.com/Upload/file/zulapazanatopejibulosif.pdfIn PDF document text
- http://jualumnitoronto.com/editor/uploadfiles/wubekafotiwovi.pdfIn PDF document text
- http://rosesrealtyhomes.com/userfiles/files/98043894119.pdfIn PDF document text
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/80ec4d4a7165f69a9b7961a665f67442/kaxapunujoxabeno.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e4bccdb0645---88987825499.pdfIn PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/se0bucakaekp5kelnm86f0c943/segupalewajolumelawag.pdfIn PDF document text
- https://pianotuningdarwin.com/userfiles/files/volerilujidisofifolus.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d55a35edd---garepuna.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d8e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8E6 | 16092 bytes |
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd |
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font_01_sfnt_off0000ee2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE2C | 10664 bytes |
SHA-256: d0226901d48a6ad3b32b664d5b06cd718a3ba301e7d1b0a6077d2ff8cfcc4b44 |
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font_02_sfnt_off0001069f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1069F | 17348 bytes |
SHA-256: 52789a6f501dbff1fd853bba1902889f51b1e82726a092debee13882346db8ca |
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font_03_sfnt_off0001337a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1337A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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