MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites that host further PDF files. The presence of multiple compromised CMS upload links suggests a pattern of hosting malicious content on legitimate but compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160de7bc2b6c97---14016945591.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9ba8e688c7---regupal.pdf
- http://booklandbooks.com/userfiles/file/vanixiwuvobirawezolo.pdf
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7b0ea4510---1122585377.pdf
- http://burchiellati.com/file_fck/file/sazafoxag.pdf
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/160cf2019b614d---36935822960.pdf
- https://nadamasristorante.it/file/solefesovapogerugosigi.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b65ecf9e38c---13706870397.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a93a40306---zelezinezavewej.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/da9f0296e32aa42876d4e3b41763a475/86997927323.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/5aa86cf6ee832dcbb98204d18484b2ea/garofatoxibewimudomuf.pdf
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b524778a430---49374083679.pdf
- https://www.northwoodmedical.ca/wp-content/plugins/super-forms/uploads/php/files/0e9b5npm0g97vl5j550g1vsd5a/24398320850.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/27fcfef98184c59873f576b68cc5aa1b/sarigogubepilame.pdf
- http://ipceurope.com/assets/file/1505281227.pdf
- https://cochleartudaskozpont.hu/files/kidalelaxumuviwoded.pdf
- http://archi1919.com/smlclub-files/file/sejedufafatejezo.pdf
- https://trimix.bg/UserFiles/File/6008271312.pdf
- https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/8e9c6279ecf7399cfe5ab965e59fb8bd/51686419997.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e8d2b0a14d0---32697049584.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a39081cbca0---movoxumimefozukugodamu.pdf
- http://hndgyl.com/v15/Upload/file/20217494757457.pdf
- http://kibunajcc.com/ckfinder/userfiles/files/47182796210.pdf
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/e069973228dfe718363e5ba60164c54b/vufexejamozo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=unlabeled+map+of+asia
- 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_off0000c477.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC477 | 16792 bytes |
font_01_sfnt_off0000dc8e.bina429462cdacea1de4a065eea69bbdb3aab96e0c6904a9a7338fa4a114216fc55 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC8E | 10608 bytes |
font_02_sfnt_off0000f47b.bin9b3b4dffd5e15242bec03a5d62ba9386b0072d0a21a0dd0b27c433c52a5c51d2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF47B | 16368 bytes |
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