MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains numerous links to potentially compromised websites and disposable hosting, suggesting it's part of a link farm designed to host malicious content or redirect users. The 'SE_CALLBACK_LURE' heuristic confirms the document's intent to trick users into calling a phone number, a common tactic in phishing and tech-support scams.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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 https://wastran.ru/uplcv?utm_term=practice+with+adjectives+in+spanish+worksheet+answers
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/eef6cf86c9bcc554f838a4d150b98743/zujokezonulajutututimobi.pdf
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160852070c7838---wexuzoninoworav.pdf
- http://bephoangdung.vn/uploads/ckfinder/files/95567237094.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/d2d9e1a2b95c067a2c1c7e0dbb88a59f/merajilobiripixogile.pdf
- http://amphorabeautyclub.com/campannas/file/sewoza.pdf
- http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa2a9ac1c8---17903595044.pdf
- http://interel-rus.ru/test/sites/default/files/file/xudotuboperazududisav.pdf
- http://donkaew-furniture.com/ckfinder/userfiles/files/wubatalezonasolodorazite.pdf
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/qecrk64m37ccfbieicitf6rl4l/56749688039.pdf
- http://dxqzx.com/ckfinder/userfiles/files/20210616_004055.pdf
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160cbf68be9e07---nukolelanalixuxotok.pdf
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b932989b97---lokamiz.pdf
- https://rdsdealers.com/ckfinder/userfiles/files/91111069502.pdf
- https://bisnismedsos.com/userfiles/file/nopogibabesojasozo.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1606c904c51ed0---61274678664.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be92e596e76---2927381287.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/e0b5d8f9e08076411e65e73712612d9d/pipinugegigu.pdf
- http://ajtoablakcentrum.com/_user/file/domivovej.pdf
- http://actybrain-consult.com/Upload/files/tajugek.pdf
- http://paliukenas.lt/i/File/7067562760.pdf
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/8ea1272211c33a9134c292298f94ec7f/jizolam.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_off0000f871.bin9d61ea7b4f7a72c20207132306d12d46f6d54220aaeab73440be5636eacb122d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF871 | 10940 bytes |
font_01_sfnt_off000111cd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111CD | 16792 bytes |
font_02_sfnt_off000129df.bind2a3be0a3119c19cd8adb3669e6cdfbf27d1690f0fb47371e2c60ba5e0cdaee5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129DF | 18960 bytes |
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