MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to compromised CMS uploads or disposable domains, indicating a link farm designed to redirect users to potentially malicious sites. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier's high score further support a malicious intent. While no scripts were explicitly extracted, the nature of the links suggests a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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 https://wastran.ru/uplcv?utm_term=kill+bill+whistle+ringtone+android PDF link annotation
- http://alituncer.com/userfiles/file/mibemidefaniwegug.pdfIn PDF document text
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/e17f72401f2eb9f25277f66f81195ac5/vajukodejikipemasedox.pdfIn PDF document text
- https://ph789.com/pinhsuan/files/file/66525811278.pdfIn PDF document text
- http://biblioteka-belzec.pl/upload/files/wizax.pdfIn PDF document text
- https://ceccarmehedinti.ro/userfiles/file/sajuvupebeg.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/58e6f2c8d817e6a3b047caa74af368e9/pigilumaxarato.pdfIn PDF document text
- https://transilvaniafishing.ro/app/webroot/files/userfiles/files/72941920063.pdfIn PDF document text
- https://hogozaty.com/ckfinder/userfiles/files/68371459746.pdfIn PDF document text
- https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612ee1ea54a1e---1457101787.pdfIn PDF document text
- https://vnnc.vn/img-hdmedia/files/89198427250.pdfIn PDF document text
- http://panova-art.com/files/file/fatemosad.pdfIn PDF document text
- https://safarekhoob.ir/basefile/safarekhoobir/files/lutojilogikisu.pdfIn PDF document text
- http://rentator.com/uploades/fckeditorfile/43282697452.pdfIn PDF document text
- http://mq-water.net/upload/97367598680.pdfIn PDF document text
- http://sadiqandsons.com/userfiles/files/zejoranoriliwasotunizel.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/16136bcfb876f7---pitogapuwifeparakotu.pdfIn PDF document text
- http://w-mill.jp/images/file/vinelupujafefasuzemujuvir.pdfIn PDF document text
- http://sushi-belovo.ru/files/92060545580.pdfIn PDF document text
- https://vanrun-it.nl/userfiles/files/meduwog.pdfIn PDF document text
- http://zonweringbelgie.eu/ckfinder/userfiles/files/jezopuniwusedigokutepu.pdfIn PDF document text
- http://mskgroup-spb.ru/upload/file/47653584144.pdfIn PDF document text
- http://jandebruijn.com/uploadimages/files/47398644150.pdfIn PDF document text
- http://allgeology.ru/ckfinder/userfiles/files/zuzevekazawilen.pdfIn PDF document text
- http://bjsixiang.com/jingkelun/userfiles/files/20210911190915.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e23e02868e---56443161046.pdfIn PDF document text
- http://apsons.eu/files/file/18287987582.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_off0000be79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE79 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d690.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD690 | 10744 bytes |
SHA-256: 037201bd2524a047a0b6b12d20a2f86296b1f560184667a32233eee1e6d84c76 |
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font_02_sfnt_off0000ef08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF08 | 19416 bytes |
SHA-256: 0bbf49e106a2bf1ee24b1092b7bade1a6979ed5c2f86d044295065b6635de97d |
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