MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics as malicious, including a high-confidence ML classification and ClamAV detection. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate this file is likely part of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
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://wastran.ru/uplcv?utm_term=percent+word+problems+worksheet+grade+6
- https://vetregistr.com/ckfinder/userfiles/files/vafujuzoko.pdf
- http://e-skala.pl/userfiles/file/83097454873.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c649b382cc9---33889790037.pdf
- http://oodow.cn/upload/file/210613192326834065jivmy00t8ell.pdf
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160f47b95b6223---83833387805.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7e6930ef37---welotufef.pdf
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607860451fd53---mupolerisor.pdf
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/548bc8c4af626ef3c58a2cbd10856cd4/51948231284.pdf
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609d15b85eaf0---95760962465.pdf
- http://bebsulmare.com/userfiles/files/45100347170.pdf
- http://alrabbanoilandgas.com/file/files/kabevobujik.pdf
- http://asupuro.com/upload/save_image/files/64625421856.pdf
- http://teaneckhs1977.com/clients/67867/File/xosetabivepileremu.pdf
- http://endemic-capital.com/uploads/files/bevigebis.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ca5a3e0f8df---dosumitegesabunomaj.pdf
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160819119a0090---24309549704.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609a9de952b3e---64469648438.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/ac08jaueqnk81v8q2790brru64/nonajojizagagolor.pdf
- http://fxmeat.com/upload/file/8102d7d5340ff263250e80ca9aaf2541.pdf
- https://austarpharma.austarchina.com/upload/files/virobifal.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/b83e9dc84b30a22d6e3bcabf12bbe2e7/vamesudoxufata.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160da7e212921b---71113275933.pdf
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/227f87826051daa2bf4d50ac26d0b00d/97458872482.pdf
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/c20tu5rmtploi5kmiuq363mrra/kupox.pdf
- https://gencshoworganizasyon.com/upload/ckfinder/files/babusoxobusemasuruzuzo.pdf
- https://bacninhonline.com/webroot/img/files/6196545620.pdf
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1ac790e20c---3649711669.pdf
- 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c0f5.bin592cb3b732ae2d7835a36fe16a17b6b65315bf2243a0c3e6b01021824d49d559 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0F5 | 16516 bytes |
font_01_sfnt_off0000ea25.binb5a1dc55b792a0d3f549a0af7ec81e4db5c20044f5f0471722107c53551b5085 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA25 | 11356 bytes |
font_02_sfnt_off0001045e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1045E | 16792 bytes |
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