MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The document body is heavily obfuscated and unreadable, but the presence of external URI heuristics and link farm indicators strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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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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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://jagodkaprzedszkole.pl/userfiles/file/zuvudupijud.pdf In PDF document text
- https://666666.vn/upload/fck/file/tuvixizomimajokezafedo.pdfIn PDF document text
- https://weddingitaly.jp/images/file/99634049202.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/a13c942af33bbf0ad56389f25558a547/titag.pdfIn PDF document text
- http://cwesp.biz/upload/file/kupijuxufomubivogijeri.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/zavipatisokafejanaxiruli.pdfIn PDF document text
- https://fetogram.ir/images/upload/files/deguxol.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/36491832464.pdfIn PDF document text
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/2c3959effcfe3ff5f2242e3bab20e649/biwugelik.pdfIn PDF document text
- http://atenngo.com/admin/sites/site/documents/92552664625.pdfIn PDF document text
- https://aitalk.vn/upload/files/widokametelerazu.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/r9dieth6be5en7v01m26vuvr3c/zituxajoriposuwu.pdfIn PDF document text
- http://sakra.sk/storage/file/56207177742.pdfIn PDF document text
- http://nicolalazzarotto.com/userfiles/files/demukewijonutozo.pdfIn PDF document text
- http://ajisushionline.com/uploads/files/kavufa.pdfIn PDF document text
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4936ea1d5---95553908394.pdfIn PDF document text
- http://czapla-dachy.pl/public/images/fck/file/gifaluponirim.pdfIn PDF document text
- http://pm-ural.com/uploads/files/robaxubarozanij.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f416e4dd5f---65154186429.pdfIn PDF document text
- http://yuha.be/_files/file/34816785195.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=sonos+connect+amp+instruction+manualPDF link annotation
- 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_off0000cec4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEC4 | 10712 bytes |
SHA-256: b5933264cafcc5b807b24b3cff73451da9a76a7af8ca8f9d21eafceaa1c7be30 |
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font_01_sfnt_off0000e74d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE74D | 19508 bytes |
SHA-256: 859e2e66bf2e535f095aec04cb97ecea66e554b0d2037ee94b35e814a0bdd574 |
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font_02_sfnt_off00011a16.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A16 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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