MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates an attempt to leverage these sites for malicious purposes, likely to distribute further malware or conduct phishing. No scripts were extracted, but the overall structure points to a malicious document delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9927
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://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/f1a6b929d3764e656387111840b4faa9/barubujum.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/caf714fa6dd2fcdc5b6d654d667fb00c/lidavevusoputapamu.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16079d40c983cf---zofomi.pdf
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078c7ffc8aeb---zojibemaramukadixa.pdf
- http://lorichphoto.com/pictures/file/61232820822.pdf
- http://irinaburmistrova.ru/files/21557293758.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c34f76017d5---90130775401.pdf
- http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/pugeluvajuliwurozozusafu.pdf
- http://sugarfree-gelato.com/upload/file/62510150886.pdf
- http://nomorecpapmachine.com/userfiles/files/78564117733.pdf
- http://chekeeh.ir/basefile/chekeehir/files/saruxatawajoz.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8438be5bd0---pajifilu.pdf
- https://fotofidelity.cz/userfiles/file/68616237015.pdf
- http://oryginalnedekoracje.pl/userfiles/file/solozugiduxosanefosapiv.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c18f5f5b734---45372356326.pdf
- http://lube-stc.com/ckfinder/userfiles/files/95092929493.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c628751348---22906642407.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084208914dec---15754101450.pdf
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/fc0e2fd937b946b8970087c57da38631/29623149918.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/067c83742bae324599f360de71431919/99358013669.pdf
- http://wamer.org/userfiles/file/66608876449.pdf
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/422r4n72vq9kt14lvlpvhdrli3/22849390436.pdf
- http://taxilitomerice.cz/ckfinder/userfiles/files/tirajedozuxasozawa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=listening+answers+accommodation+form+student+information
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ec8c.bin57b88d1a0315585c970de4a6b957476d4b00d0eeb4a5f0d3e5b0970b7fd45f3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC8C | 10916 bytes |
font_01_sfnt_off000105b7.bin51200f8d3479e48264b21d010f6d8c35cf42fd5091fe483ea6e3aa8e31bba3d0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105B7 | 16348 bytes |
font_02_sfnt_off00011bd7.binc1cdc46592ecf18bae9e73dc66e7e59fc350106dd6dc40f8fadc863593780a18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BD7 | 23964 bytes |
font_03_sfnt_off000150bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150BB | 16792 bytes |
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