MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9909
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://stallion-international.com/userfiles/file/29363814083.pdf In PDF document text
- http://ansonseatery.com/uploads/files/xoduzuduwugumawezamolovop.pdfIn PDF document text
- http://www.amanuttarakhand.org/ckfinder/userfiles/files/kenuwejudaxilobexukon.pdfIn PDF document text
- http://tks-forever.com/upload/2021/07/07/file/61736631164.pdfIn PDF document text
- https://tenekedjieva.com/uploads/file/85780228170.pdfIn PDF document text
- https://www.rekalibracija.com/wp-content/plugins/super-forms/uploads/php/files/c4385c3765facde22ffaed7983e3f081/99048217274.pdfIn PDF document text
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/a99ab6421820819398ec2bd1fe177a1b/dazexalofikaxaperokovozoz.pdfIn PDF document text
- http://dalboncostruzioni.it/userfiles/files/sobakunanuvasozawiren.pdfIn PDF document text
- https://luyenthitoeic.info/userfiles/file/57024136083.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2f807f0c5---furaz.pdfIn PDF document text
- http://www.moyekolodin.com/files/51445818661.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/f95amkeo6u7ggdt4o7kl333so1/72267659901.pdfIn PDF document text
- http://centralwestwoodclassof1983.com/clients/c/cd/cd4b3c89dd1500142a52f05b9125c350/File/30008720036.pdfIn PDF document text
- https://silverlabpupsforsale.com/userfiles/files/fozapiroto.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/q6ct9hj17blamt8u4qrc3j8c3q/semadadupipudexelirug.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2fe7c4a64---jexitulajamodogatod.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608444fb6ed22---fupejuwimivokejedemow.pdfIn PDF document text
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085356be3f3b---nojin.pdfIn PDF document text
- http://chinajessie.com/seadata/data/uploads/img/file/162268697330.pdfIn PDF document text
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/3f7cc87de5ae4bee35a380e6bff7bda5/934245468.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160f08d9759217---25116717633.pdfIn PDF document text
- https://bevillelecomte.ovh/ckfinder/userfiles/files/26123825834.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ee7d46a94bd---xifomomamiwibisero.pdfIn PDF document text
- https://gachbinhduong.com/upload/file/davexozeteminax.pdfIn PDF document text
- http://studiosantomauro.it/userfiles/files/12447726438.pdfIn PDF document text
- http://findmealocalpainter.com/insurazon/admin/userfiles/file/27431583357.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=how+to+remove+password+protection+from+adobe+pdf+filePDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f5ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5ED | 11064 bytes |
SHA-256: d7c6aa256e12fa2e92807353c93555247800d6a026f09a70c76c03ef1a3c9a4f |
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font_01_sfnt_off00010f78.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F78 | 16080 bytes |
SHA-256: d9b8130aa6f9633ab3de79ff31e2004108ab7689d1c7a99745aef320e0a208db |
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font_02_sfnt_off000124a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124A5 | 17604 bytes |
SHA-256: 84411231a0fad5eb6584dd09a30debfc1f8c071be1714cf5a76aa2e64d3b7764 |
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font_03_sfnt_off000152df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x152DF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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