MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories and disposable domains, suggesting a link farm designed to redirect users to malicious sites. The presence of a 'download' button lure further supports a malicious workflow.
Machine Learning
- Nyx PDF Classifier malicious score 0.9967
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://canxetaidientu.com/images/file/85022524107.pdf
- https://apsco.ly/userfiles/files/jibudeduxaweganexapax.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf845c5e174---75457507172.pdf
- http://cateringkieuan.com/uploads/userfiles/file/patexalasuwekodawo.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/160abcf1a4ca89---87243820014.pdf
- http://poexali.org/static/image/_u/system/files/palugezolufejuzodig.pdf
- http://debsluxe.com/clients/1/17/174397649ed9f07baa8f9d9f48c72a4d/File/84107168752.pdf
- http://tanriovermensucat.com/uploads/genel/files/26523814864.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160f231e7919d3---pajasusobologoromif.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/df2f1599ceae65e28c2dd5b8b99f98e2/nokawovosumufobo.pdf
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab48f4297c3---wofijarezos.pdf
- https://tspinstruments.com/cache/fck_files/file/71573519309.pdf
- http://ahlhy.com/uploads/file/252045285011.pdf
- http://varosom.hu/userfiles/files/pemovobu.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071db3a64933---bobexonopegavanusixuti.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160965a5081acf---potiwigajur.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092793e77a04---wazedopilovazomuwabov.pdf
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5bdd689168---61937439266.pdf
- http://farashimirooz.com/files/datubaf.pdf
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1609a2a29ea058---tomomavaxisen.pdf
- https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa239c0ef87---zutixu.pdf
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cfddba76bb---40507797357.pdf
- http://livingkaneohe.com/userimages/pikirizu.pdf
- http://kiavysocina.cz/UserFiles/File/fufazuzibuzerekijipa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=active+and+passive+voice+flocabulary+quiz+answers
- 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_off00015a2e.bin8ab4b22686552e6572831af4b7002b5685bffe4372245306a797fddbbb0537ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15A2E | 11304 bytes |
font_01_sfnt_off00017498.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17498 | 16792 bytes |
font_02_sfnt_off00018caa.bin401ccfc19d2ec3ff3043e711abdd5cd924b7bb3ff96233b321c22c1efcfe83cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18CAA | 17244 bytes |
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