MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated and unreadable, providing no direct user-facing content but reinforcing the malicious nature indicated by the heuristics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://sweed-trans.eu/ckfinder/userfiles/files/sujurazurenemufemem.pdf
- http://mrpokedb.com/uploads/files/62484050748.pdf
- http://zerosquareonline.com/file/98289001398.pdf
- http://automozg.by/upload/editor/files/59135524445.pdf
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/c3c09c742bdc7ebb49357d05d46bf2bc/40380101194.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adafdb841ec---23925906303.pdf
- https://pui-vital.ro/msg_media/file/medotitiduxixe.pdf
- http://thephinhmienbac.com/upload/files/74558736305.pdf
- https://olympicwroclaw.pl/zdjecia/fck/file/3465440235.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c8eb4226bbe---ziseg.pdf
- http://unseenadventure.com/userfiles/file/siwipowi.pdf
- http://eshop-kocicinadeje.cz/files/file/dukezudizufeditedewo.pdf
- https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/12882916495.pdf
- http://nsfeed.com/_UploadFile/Images/file/zamarudunuwinewev.pdf
- http://kokomo1986.com/clients/31029/File/95117700693.pdf
- http://hopkinshigh62.com/clients/7/77/7764523e397120ad9b09b1da26998858/File/64413515670.pdf
- http://solamsys.com/userData/board/file/84154177075.pdf
- http://qzgyhs.com/Upload/file/kegivofelelunazux.pdf
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/46576609052.pdf
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/65cb6ac7d0af6a832908395e073100c2/zosebe.pdf
- http://xhiehchin.com/Xhieh_News/_file/52060425286.pdf
- http://kolasinprevoz.rs/slike/files/15764585122.pdf
- http://huile-de-nigelle.info/userfiles/file/danovatajukexiruzeme.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=fichas+descriptivas+por+alumno+preescolar+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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e617.binfd494554c7a7a2c4488382a78096c535ff133766c7221992be4f6a58596b2467 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE617 | 16164 bytes |
font_01_sfnt_off0000fb8e.binee1c97e7c0ce3b28254283f9689f3849b74fc302f86f76977859fd1d85748091 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB8E | 11028 bytes |
font_02_sfnt_off00011504.bin85a3b2a24f4c25277f155ba0f40fdc97414ab97f24e46416f872d8655b2cf815 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11504 | 18192 bytes |
font_03_sfnt_off0001428b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1428B | 16792 bytes |
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