MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting, suggesting a phishing or malware distribution scheme. The presence of multiple links on compromised CMS upload storage further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://niestachow.pl/data/aktualnosci_imgs/file/japutusibiwunazeb.pdf
- http://londonjip.com/userData/board/file/pinixemi.pdf
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1e8116686---29708361880.pdf
- http://hongshengfish.com/uploadfiles/20210620/2106200537277398750v2iobhpigex.pdf
- http://alexanderkanevskyartgallery.com/clientMedia/file/minodojimuzidozeso.pdf
- https://jbdclothiers.net/emailer/userfiles/file/pedoselovisagopupidujof.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c951faeaad9---67177531799.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc9b33349e---70278442176.pdf
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160cbf3c99cdff---4818913741.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16082aadc39545---54487881874.pdf
- https://autotronics.vn/userfiles/file/4040333552.pdf
- https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/doqtukfulkbstjjae6re2jqna9/72437475321.pdf
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/1eftcnh1f38oolbclt6ogjk9p2/rijubaluwap.pdf
- https://alshamiltrading.com/alshamilfiles/file/87761784578.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/cbfbhajqjjhpnn14tdtnq71jn3/84977361219.pdf
- http://nakatka.com/files/file/fikeni.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/du2a3mf34nq5ddjrktssim29fg/vokugunemafem.pdf
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ff55a7077---piruzivurudugofarutaman.pdf
- https://topclassgreenery.nl/images/file/58086940844.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/aibu3iob7pulr0f4r60vfovmt2/79531760789.pdf
- http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160829347b3502---purubelopigemesidedet.pdf
- http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/874c2120cbe8a7c5c28e9fb9a8158717/lutadisidozazadisajenunex.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/17475fa792224409a84566abc7c7c288/1057404743.pdf
- http://belst.by/upload/file/29662015335.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=the+art+of+the+argument+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_off000101d5.bindc50be013dda8a75ee93474e8bda1f51968d1d91c6948c44fac67dee4513c46c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101D5 | 17124 bytes |
font_01_sfnt_off00012e75.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E75 | 16792 bytes |
font_02_sfnt_off0001468c.bin37215cdda04eb9b29dabd0d4daf3466e676c914144996fa416aae0c69186cbf1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1468C | 10704 bytes |
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