MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution intent. It contains numerous links to external websites, many hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users to malicious content. The PDF structure and embedded URLs point towards an attempt to exploit users through deceptive links, likely as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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://crysiq.ru/uplcv?utm_term=patterns+scales+%26+modes+for+jazz+guitar+pdf
- http://arcenevents.nl/site/upload/files/xebufanorudukat.pdf
- http://wsm.hk/images/uploadfiles/file/20479971205.pdf
- http://nage-z.com/ckfinder/userfiles/files/leduridemenabavi.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0755834f79---47279190886.pdf
- http://hccc252.ca/clients/e/e4/e484b38507f190a955b66748903449e1/File/katavevasenabidi.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160865347ea25a---relasagiwijaforexe.pdf
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/ffea2d36f779b55edce7dd8d4276f19e/botegirefogopamulipunene.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/eb886729993fce02c357556e9160c4bb/47767446828.pdf
- http://www.pics4us.de/userfiles/file/kikaxowamoli.pdf
- https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/9078d13fb8a40052d5e6049447866d9d/vuzul.pdf
- http://irishheritagesociety.net/clients/7/7f/7f3653e4c5d791bf76f28d2bf9929747/File/tumowetivamawagilanefiba.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0e448855c7---35501452575.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/3bf6fbeecf2d97fea5b1353fd350c87c/wojijar.pdf
- https://okazdedziecko.pl/_files/Media/file/wujazurobutupuparumuko.pdf
- http://nemdanangpho.com/uploads/2021-07-08/images/files/16945270521.pdf
- http://sjhrz.com/images/upload/File/nisirosizelerubonupemebol.pdf
- http://creatinglifeoptions.com/userfiles/files/30430332941.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607b053a07455---30501194998.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077b36e1b3b9---71420817621.pdf
- http://globalbando.com/DATA/upload/files/202107032208417074.pdf
- https://transpack-krumbach.de/_upload_bilder/_filemanager/file/33335223505.pdf
- https://elnativocoffee.com/silver/upload/files/zafogaliperezo.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160741d4e5dde3---luwug.pdf
- https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/v1mbq2l15ebdm66tm92cbj5036/zagiguwefasesukabivo.pdf
- http://shannonlakeestates.org/fck_images/file/rarivukexisul.pdf
- http://hydrem.ru/images/file/xapobugowimofasexixevo.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_off00011acd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11ACD | 16792 bytes |
font_01_sfnt_off000132e4.bin91430e01263d62aa5ca62d5bc475279a20ef0f218f5c6a33293504359fc9cde7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132E4 | 10012 bytes |
font_02_sfnt_off00014941.bina194a6ede61a80cfce4e516453b1b6a4be53b50661e23d4c1aa1c2e31d0f8ca6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14941 | 17660 bytes |
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