MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it contains a link farm pointing to compromised websites and disposable hosting, likely serving as a lure for users to download further malicious content. The presence of a visual download button further supports a phishing or scamming attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9910
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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 https://crysiq.ru/uplcv?utm_term=apk+download+by+link PDF link annotation
- http://buyyoutubelikes.com/ci/userfiles/files/61078833237.pdfIn PDF document text
- http://abwnickersonplaza.com/uploads/files/74694548438.pdfIn PDF document text
- http://dywin.com/uploadfile/files/78981792565.pdfIn PDF document text
- https://ises.ca/phpsites/vertical_living/uploads/file/36845880654.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137b6cfefc61---36599854155.pdfIn PDF document text
- https://nhaccugiare24h.com/uploads/userfiles/file/pexuxuzaperujolosaxaf.pdfIn PDF document text
- http://mrybalko.ru/files/ximenovoxeruw.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/76854218869.pdfIn PDF document text
- https://net-mex.hu/ckfinder/userfiles/files/30655854526.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161353fc8d5a25---bakulosub.pdfIn PDF document text
- http://adhunikjewellers.com/ckfinder/userfiles/files/lefipowujamaf.pdfIn PDF document text
- https://dananeye.com/uploads/files/202109082048389946.pdfIn PDF document text
- http://nitexprofi.cz/userfiles/file/fuwox.pdfIn PDF document text
- http://www.satunatc.ac.th/ckfinder/userfiles/files/renigatazigis.pdfIn PDF document text
- https://cvzona.lt/resources/img/files/topipezotufe.pdfIn PDF document text
- https://rdw-wolf.de/backend/ckfinder/userfiles/files/biriduburuzimebujupakud.pdfIn PDF document text
- http://rosesrealtyhomes.com/userfiles/files/kaxuposipefudoriwilakux.pdfIn PDF document text
- http://medwin.kr/userData/board/file/59376174852.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/912a527b01b89640a5b2c8aef682a4a0/wikejipitegemofek.pdfIn PDF document text
- http://snieznik.pl/userfiles/file/79612799302.pdfIn PDF document text
- http://farmaciafici.com/userfiles/files/saworibinotejokap.pdfIn PDF document text
- https://xedulichhaiphong.vn/images/news/files/xixunigugetapi.pdfIn PDF document text
- http://a899.net/userfiles/file/suzuvaz.pdfIn PDF document text
- http://fisioterapiasuzzara.it/userfiles/files/81520217031.pdfIn PDF document text
- http://ytlcases.com/userfiles/file/12231095713.pdfIn PDF document text
- https://xn--espaoldetalca-lkb.cl/var/www/html/upload/file/17736392204.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_off0000bc9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBC9A | 10300 bytes |
SHA-256: 6eb9079a1ac983208e3bd1476b0365fb17e84adb69ea4896798500cdbfdd2ed6 |
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font_01_sfnt_off0000d3a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3A9 | 17016 bytes |
SHA-256: b89e4dc0ce947e07fb28b12dfca96e8b4b907fd7a1a8608e2542a0c0af1c86fd |
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font_02_sfnt_off0000fef5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEF5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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