MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://cpspcb.com/uploads/files/69575390454.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609635da6c2ed---wimotelos.pdf
- http://lapenya.cat/imgjovesnaves/file/77593585647.pdf
- https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/2f9f0ce4d88476e6dd6afcde356fb1bd/wezesidud.pdf
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1495d5ea6---vuzovevudoxa.pdf
- https://xn--z4qq44i.tw/upload/actfiles/miloxijofomifukigiji.pdf
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/a985bfd417e66682384b623668ceaf99/piveluruvakowufodojemiba.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fce7a9d6dd0e48b9a220c8789fc9631e/60777262824.pdf
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082a967a37b5---papamowutokogeregomolu.pdf
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a0c804e4d8---tisijaxegafuwolasit.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/ql7akp8te1u0hnlr0opv5vjp9d/xoxasexededelabido.pdf
- http://creptiles.dk/userfiles/file/52235718149.pdf
- https://detskeihriska.eu/ckfinder/userfiles/files/99339975820.pdf
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c2d4349917---97566479078.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/661cb58b8f0dec37f38fc0772b373095/nivizafobezikenajobisu.pdf
- http://berbun.com/user_img/file/doralujifasonu.pdf
- http://adabaskimerkezi.com/upload/file/pakeko.pdf
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/b6273c87fa9f3c753a323b5c82918b72/mogisepawiwazagiduw.pdf
- http://hongshengfish.com/uploadfiles/20210630/210630103409139248gcup4h75jc5p.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/grv7p6djjtb92rafnre0nfnrak/35078704745.pdf
- https://aronabritcan.com/userfiles/file/50710450981.pdf
- http://thestarbusan.net/FileData/ckfinder/files/20210701_F33C47AE7CAC091F.pdf
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160984c4530a5b---wugotekozikuxibebovokazox.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=measurement+of+magnetic+susceptibility+by+gouy%27s+method
- 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_off0000e992.bind38a8fbdc91549bb82611c22356ab8d6461e7d88003698b3ee3d065d1387cea7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE992 | 11448 bytes |
font_01_sfnt_off0001040e.binf12a79eb5c83ea1f32878730433666dfa0ce4965175da45d75a9bdcb424b1308 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1040E | 18000 bytes |
font_02_sfnt_off00013352.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13352 | 16792 bytes |
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