MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a phishing or malware distribution campaign. The presence of 'utm_term=my job status offer extended' in one URL indicates a lure to entice users to click.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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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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=my+job+status+offer+extended PDF link annotation
- http://longchimvac.net/app/webroot/uploads/files/23895592457.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c67641dbea1---legunidonimelemefapijol.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cccaa624a3---bavopuforaloka.pdfIn PDF document text
- http://humanitool.ru/userfiles/file/72995562841.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608675c7b277d---96163275366.pdfIn PDF document text
- https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801de82208e---vipujas.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16098dc7c4e508---jigiveboz.pdfIn PDF document text
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085cb44aea0e---jevemiwafebusesolafiwaf.pdfIn PDF document text
- http://asijskepotraviny.cz/files/file/93433494889.pdfIn PDF document text
- http://compufoxmail.com/userfiles/file/pekikanilofobira.pdfIn PDF document text
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/2ceb948c5bd7e80df93c53f187bc226a/41903278913.pdfIn PDF document text
- https://sonarmusic.hu/up_image/file/29045628443.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///25577616421.pdfIn PDF document text
- https://digireg.nu/upload/tulusas.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1606cefda7aea8---73492032754.pdfIn PDF document text
- https://mzr-avocats.com/buddha/ckfinder/userfiles/files/xulalididonezuxadani.pdfIn PDF document text
- https://www.nosolodespedidas.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b05c921359a---zitek.pdfIn PDF document text
- https://angelsstaff.com/uploads/file/jobikolabagag.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607746868d390---17773263969.pdfIn PDF document text
- https://egyiksem.hu/uploads/file/29421980136.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_off0000fc50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC50 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011467.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11467 | 10788 bytes |
SHA-256: 39003621795f40446fbb025075de8cfbf0a4f4793b37264289251df415601fba |
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font_02_sfnt_off00012d7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D7D | 16948 bytes |
SHA-256: d5a87b4bd27a97621b53e1b2f0f6602ce9bd2da70f94e687b1cf7baf9c6a57db |
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