MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as containing a link farm hosted on compromised WordPress sites. The ML classifier and ClamAV also identified it as malicious. The embedded URLs, such as http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/23bb1bb3b8c5e1686a2aebb3da2ff17b/58532150955.pdf, are indicative of a phishing or redirection attempt to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/23bb1bb3b8c5e1686a2aebb3da2ff17b/58532150955.pdf
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c64f3c88dd---fivowibo.pdf
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/68e1a556869ebfe8139f40a31db133ec/jugukukevetigemed.pdf
- http://taiwanglassgroup.cn/userfiles/file/meworajejekuxijilakawo.pdf
- https://amitadevnani.com/userfiles/file/42719065865.pdf
- http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a12985af6d5---63759964820.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a9c263b9b---58169423828.pdf
- https://berbagiangka.com/contents//files/waxetomuri.pdf
- https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/36ddbcebe334f40b40a38f0089d75bf5/37818674895.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/98e26c7fbba3a09a39cb98b1c60200df/sowimanes.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c33b08e690b---86382151632.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4af7d272700e12880e48467787ce5878/78735043476.pdf
- https://dammesliepas.lv/ckfinder/userfiles/files/13407367135.pdf
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecc6d0af13---96084613754.pdf
- http://tokyoto.pl/UserFiles/file/kawaza.pdf
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1607798656a82b---4752181878.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086f329f0545---75820813776.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef3cae9c82---83456218887.pdf
- https://partnyor.az/userfiles/file/zobagulo.pdf
- http://msslink.ru/userfiles/files/82090511453.pdf
- http://albatrossmrn.com/konadnew/userfiles/file/27127892787.pdf
- https://aimhc.com/userfiles/file/vasizuvopobilazogirav.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=calcified+hip+joint
- 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_off00017ff4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17FF4 | 16792 bytes |
font_01_sfnt_off00019806.binb4b1d2eee8f7a084d03ff92e0759898de0f1fc1b50b09a69f8570ba8dda0a847 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19806 | 19168 bytes |
font_02_sfnt_off0001caaf.bin3685282465c0fe1cd7ae4696be1c6ff8977d2a6b1516b7c3ffdbdee41adb09d6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CAAF | 10612 bytes |
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