MALICIOUS
236
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document is classified as malicious by ML models and ClamAV, indicating a phishing and potential trojan threat. The document employs social engineering tactics, specifically a 'ClickFix' lure, instructing users to execute commands, and impersonates Microsoft to solicit credentials via the link 'https://infrive.ru/uplcv?utm_term=windows+not+activating'. The presence of numerous links to compromised WordPress sites suggests a link farm designed to host and distribute malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 8
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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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://infrive.ru/uplcv?utm_term=windows+not+activating.
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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 https://infrive.ru/uplcv?utm_term=windows+not+activating PDF link annotation
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/6e5c2f951094449169727faec329f839/84168930745.pdfIn PDF document text
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/f351825527bb895a36f2e748c0fed4e8/13238576157.pdfIn PDF document text
- https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/n6tp1d5ml876tbmms1h1afhoj8/92825881470.pdfIn PDF document text
- https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/617e291cea4fe525c7a89bb53ba31e54/luwapakonajakemobuf.pdfIn PDF document text
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/d7c5eb0aa27e88aaecfed00d18455fa2/rokululuzulowotigujogadit.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/cccd08b7a0b299d702fc5fc38516f581/givenotibalo.pdfIn PDF document text
- http://brandiassociati.it/userfiles/file/doruwobowexo.pdfIn PDF document text
- https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160abaaa40c047---xagajujomi.pdfIn PDF document text
- https://brahmagnanam.org/fck_uploads/file/kaxofojanerutepu.pdfIn PDF document text
- https://olgapopovaphoto.com/wp-content/plugins/super-forms/uploads/php/files/5935d64f83603dda8fd602cb443c262e/68440414432.pdfIn PDF document text
- http://thuduchouse.vn/pics/file/jifuvipuvobozakaw.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/39e321e178180b3e1bfcbcf9a5dba7f2/64931102404.pdfIn PDF document text
- http://szkolka-wiercioch.pl/files/file/24259797972.pdfIn PDF document text
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/74a0431558f61f6df0a662c76ca782b0/34426188156.pdfIn PDF document text
- http://cnp-inc.com/ckupload/files/16052284082.pdfIn PDF document text
- https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/d9635f13efc6a8fb9e7018e2c1112862/7674369851.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/73f40b954ca705194567a997b46ee709/sopure.pdfIn PDF document text
- https://syteq-pro.com/userfiles/file/xukamovenefi.pdfIn PDF document text
- https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/c3354294be7e1902f02e86070b5c91ae/gosajugibivonof.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd1d359cd4d---99923631559.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/tl7lsca5j6pn1309t681ummrng/mapigujufeb.pdfIn PDF document text
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607035844bb4b---litetaripa.pdfIn PDF document text
- https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/e206f22910976115ccd94258bcdb1476/wajuworunafabazorerej.pdfIn PDF document text
- https://101doctor.com/uploads/ckfiles/files/60cfab91e3741.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e5e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E0 | 16940 bytes |
SHA-256: 6eace7ef6d75aea4bd5d826f32131753e28bd86a7bce91ff35b237fad1364497 |
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font_01_sfnt_off0001124e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1124E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012a65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A65 | 10412 bytes |
SHA-256: e8ebd5aed2e6c46475d03e99472b1bb36573f198bd663e5b762c22d70b582ef9 |
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