MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall structure strongly indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://drafthe.ru/uplcv?utm_term=hardware+job+interview+questions+and+answers PDF link annotation
- http://yangs-ns.com/ckfinder/userfiles/files/20210602201636.pdfIn PDF document text
- http://sanarina.de/ckfinder/userfiles/files/51727502022.pdfIn PDF document text
- https://fajndoktor.cz/images/file/files/visefirowotoletare.pdfIn PDF document text
- https://heatingboiler.ca/fck_upload/file/98773699850.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a02022aee0---wajob.pdfIn PDF document text
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/0040f1394a3f62a55a2f62dd62f28def/98169576078.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160a4d3e9a2f15---78534018851.pdfIn PDF document text
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/30aqquiltfktvr03cno8umuf2n/91352358949.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/niodg9f7j706vnd557asc2fq39/nelujubibozulugapu.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607caa171d531---88605032098.pdfIn PDF document text
- http://lexen.ca/userfiles/files/zivajawik.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b25e87bce6---58233939711.pdfIn PDF document text
- https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/1dfd76445c09b899a32d6a60510113bb/zexukoxab.pdfIn PDF document text
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/bop3t0u15no6usmihd3ufit5bg/baxalusaxotat.pdfIn PDF document text
- http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/oraofdvp9ltj3u92jk3v8b1d9t/77831041675.pdfIn PDF document text
- https://tedvandergulik.nl/userimages/file/bikuwu.pdfIn PDF document text
- http://cafemsoffice.com/userfiles/files/8605152279.pdfIn PDF document text
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d106366b29e796cd58596c10ac611017/wisufemenofotiveme.pdfIn PDF document text
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160adc8a1354b8---nonelazuwogit.pdfIn PDF document text
- http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b58eca4be03---bubiwased.pdfIn PDF document text
- http://vitanova-cattery.com/upload/file/suvonale.pdfIn PDF document text
- http://ghalemdi.com/userfiles/file/rogerelupadewuko.pdfIn PDF document text
- http://mya1fc.com/files/ckuploads/files/7170432225.pdfIn PDF document text
- http://jyotiacademicpress.org/uploads/file/tuvagedujenoneji.pdfIn PDF document text
- http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/67113132785.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_off0000fab0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAB0 | 18240 bytes |
SHA-256: 8624c13491c3f7d7848a7570c27c5bd933a8cf960ccce4ae3eb1f2f3735affc0 |
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font_01_sfnt_off00012844.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12844 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001405b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1405B | 10856 bytes |
SHA-256: cedc237830b097c50f4867d760a518f02fad458b64e219c1aa82873f03229887 |
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