MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file acts as a link farm, pointing to multiple compromised WordPress sites that host further PDF files, suggesting a distribution mechanism for phishing or malware. The presence of external URIs and link farms on potentially compromised infrastructure are key indicators of this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/d63282046e9bb365a9735b52381b709e/sazage.pdf
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/fevf666eal3cauhiutorrtn4oo/87870462818.pdf
- https://rubin2000-distribuitorshop.ro/userfiles/file/1295869438.pdf
- http://change4best.ru/upload/file/gujizamejujelizulolidoxiv.pdf
- https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/6c2c8e849b65583aad5285f61ed3798c/wokopamo.pdf
- http://cdmatik.com/uploads/file/fejosibotexon.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/337cad06dd16108473638aaa651a1ba4/sifagubirekokuvaj.pdf
- http://vipforiraq.com/userfiles/files/wunezovozowilejasafiza.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1608e63502e3d5---posedodanunol.pdf
- https://majubesar.info/contents//files/sugutixifoj.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d803fc459ef---fagudirawin.pdf
- http://theheavent.com/userfiles/files/54422515349.pdf
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072cd4617ae4---letolozuliga.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef2ac54865---3628562387.pdf
- https://eberli-medical-supply.ch/upload/file/nawafexewiveravivu.pdf
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/20b75fb6660420309a699693ecac9778/88737857073.pdf
- https://artasedanasingaraja.com/uploadfck/file/83546899265.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/ba3qo9621e18936863j5cs863k/nepuvejigebizigurisaju.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bc6860afcf1---98720811604.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/9d9013e47f442d9f8dfd0a6c76a5e1d1/79468000164.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c8644592308---xifuvikivabilipeda.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=the+battle+of+labyrinth
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e44f.bin0642b7d18f542b49340f7f6623edfd5f2e179faeb20fd4ea45286c5f1deb5ddc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE44F | 17368 bytes |
font_01_sfnt_off000111d2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111D2 | 16792 bytes |
font_02_sfnt_off000129e9.bine08658ae001b760d8a83d8d15fd193faf46e83e147e0256325c6b3ca7a36b7c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129E9 | 10360 bytes |
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