MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm directing to multiple compromised WordPress sites, which in turn host other PDFs. This pattern is indicative of a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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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://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/fe2cc23397a88f44a7be51cc7eae10fc/35512760203.pdf In PDF document text
- https://www.azembay.com/wp-content/plugins/super-forms/uploads/php/files/v04373rcn9mmp73098pj24nhno/lukejolawinebusenejojo.pdfIn PDF document text
- http://dienmaythanglong.org/uploads/files/78116841286.pdfIn PDF document text
- http://asea-admin.com/_userfiles/file/20210502171406.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce23cdc610---totimakoduvizizutunokavug.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/g83enmt68gqr2bj5cam8crb78e/monuwesinebe.pdfIn PDF document text
- https://midasspa.com/ckfinder/userfiles/files/bopigimati.pdfIn PDF document text
- http://kopdesign.nl/userfiles/file/zepomul.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6aad9dfbd4---36466275002.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/20359531732.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/i48ohkdo6kdutu5m8h4tm2dv46/jegexisuxo.pdfIn PDF document text
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9701609676---40188421319.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1608be86b9e408---mokigesinowafiguzudoj.pdfIn PDF document text
- http://bertoniamministrazione.it/bertoni/public/file/larujaluwoz.pdfIn PDF document text
- http://arslanemlak.come/file/40744874966.pdfIn PDF document text
- http://artpolyclinic.com/file/files/vepifurozogo.pdfIn PDF document text
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16081efbc3ad96---dorufigujokazoligugepita.pdfIn PDF document text
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/979a1c5377fec76ad8a6318c164e69c8/sojivelok.pdfIn PDF document text
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071cb30b5571---vifasowenevasebe.pdfIn PDF document text
- https://accesoriosalmayor.com/images/userfiles/file/xovof.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1e51037cdc---44267847436.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/93e5080e8e2fb97ed19e23d7f4d4142c/ramobupezalezokonibipelir.pdfIn PDF document text
- http://hani-bee.com/userfiles/files/25287675737.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+test+an+equation+for+symmetryPDF 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_off0000e229.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE229 | 10764 bytes |
SHA-256: d4f8449016a6b6736fc55abe836c2bd1b7746e785bcc21ef720ce0358b656c7a |
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font_01_sfnt_off0000fb05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB05 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011317.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11317 | 17696 bytes |
SHA-256: 9d461861e133b2ace8d61376bc0f33ca8b2cfb14727b80266778114a4df4c3a4 |
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