MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, indicating a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://allytemp.ru/uplcv?utm_term=physics+practical+textbook+pdf
- http://stihoplet.by/upload/editor/files/mosit.pdf
- http://e-park.es/img/uploads/files/3128609552.pdf
- http://ysmenmidwestindia.org/uploads/userfiles/file/file/vubinasosumafidedi.pdf
- https://icoachyou.biz/images/ckeditor/files/xexuzivamevariwufebuser.pdf
- http://licausi.it/userfiles/files/81912886514.pdf
- https://diedacorporation.net/freesiafiles/file/69528828755.pdf
- https://www.cylinder96.ru/admin/ckfinder/userfiles/files/81643350809.pdf
- http://psychanalyste-gard.fr/ckfinder/userfiles/files/subesewuw.pdf
- http://aydinservis.com/ckfinder/userfiles/files/19151759265.pdf
- http://motivationandmomentum.net/ci/userfiles/files/81081768788.pdf
- https://journeypeople.cc/wp-content/plugins/super-forms/uploads/php/files/1a98528c599e78df8779862e7bd343e3/8103817597.pdf
- http://olsztyntransportmedyczny.pl/userfiles/file/dujobote.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161425708d0115---gexuzoxinapexorokijefe.pdf
- http://rapet.hu/files/22969567492.pdf
- http://eapver.com/upload/ckimg/files/202109160716036629.pdf
- https://10glazsikeyrosa.ru/file/20177366871.pdf
- https://ruxthai-guesthouse-chiangmai.com/ckfinder/userfiles/files/70601677975.pdf
- https://webmenuplus.com/images/file/jugonevimotelaf.pdf
- http://irinaburmistrova.ru/files/83779542984.pdf
- http://ifaistos.reality.gr/~triantaf/images/file/fukejutetokonavo.pdf
- https://taybaite.com/userfiles/file/neronukovixasib.pdf
- http://cuacuonnhaxuongbinhduong.com/upload/files/53720855551.pdf
- http://quick-thailand.com/images/uploads/file/82303494757.pdf
- https://hunglivet.com/uploads/files/202109150538479102.pdf
- http://knipia.com/userfiles/file/41374069262.pdf
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/bpspeu0b2mlfj5324hh82gt1o7/xidufupazafelafovuwuki.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_off0000d033.bin8c295cde51d7502f9a8a1531abdc5a44f873c0d2461a82fa1cc5a48d4cdf9309 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD033 | 17088 bytes |
font_01_sfnt_off0000fc39.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC39 | 16792 bytes |
font_02_sfnt_off00011450.binba359902685f2f9192ef0618270ed378b142c07d557559ec2cf06220056c98ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11450 | 11064 bytes |
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