MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains a link farm pointing to various PDF files hosted on compromised WordPress sites and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of a callback lure indicates a social engineering tactic to trick users into interacting with malicious actors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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 http://patriabrno.cz/userfiles/files/wabelemozegeku.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0552782d40---19022692976.pdf
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/62041e627cec7bcdf927ab5dec9acbb8/wopagomunabaximigezogugo.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608a08c326845---11371390641.pdf
- http://cartopack.com/Images/file/90433678521.pdf
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/9c9c544cc1a9ded47b7f8dc9608506e1/lufuvakexemugelol.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c6cd9370569---91461507615.pdf
- https://ebooksweb.net/files/file/62260197531.pdf
- http://shqinze.net/admin/upimg/file///wanagunowirilapukidodid.pdf
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/67085334a06da3d0f5ed4af9458deb62/dasodewefimumimoj.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b2f1f542f1---kodabuximizibog.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608131634dec9---dasafazanegewuwevilaw.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4eaa9eabcb---worowepilu.pdf
- http://okmarin.ru/userfiles/file/vilisenetizoju.pdf
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099f4eb1aa50---30014023531.pdf
- http://xn--or3bi2da319p.com/upload/fckeditor/file/rokosisobowewezuboseko.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/cf3e9214f45e90ffdd12c4277bbf8503/zopujuf.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608b535324a42---miliguzetomov.pdf
- https://primer-spb.ru/files/files/xezarumozamolikeliruzavir.pdf
- http://alexhofford.com/temp/files/file/13723065596.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/160732d7b50a0e---zoletizomowedusixobaje.pdf
- https://www.ergunaygoren.com/wp-content/plugins/formcraft/file-upload/server/content/files/160802faad8c16---bovemena.pdf
- http://cachnhietwin.com/luutru/files/gozoni.pdf
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/atrgajdo7heu6olcbc1t2rvkaj/sarisatipiguvomujudit.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090394335589---86520770682.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=simple+curve+sample+problem+with+solution
- 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_off0000e3c4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3C4 | 16792 bytes |
font_01_sfnt_off0000fbdb.bin91c42d2d1adad760f401583fafdb4642a48c6ab3e6e1a3868390a4bafb4af01c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBDB | 11108 bytes |
font_02_sfnt_off0001155e.bin90ef13415dd6640feeca3ca3148fe3b5f8414c008e0690e9b6e52172982fa15d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1155E | 17288 bytes |
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