MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, appears to be a lure related to 'reading exercises', which is a common tactic for phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://laborke.ru/uplcv?utm_term=simple+past+tense+reading+exercises
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a173bcb4f5d---55156130571.pdf
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/059dnco0orpsfruqdrthc6vcv3/69821841013.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b546a860556---13745561913.pdf
- http://allamericannursing.com/userfiles/file/xisowere.pdf
- http://fiumaradelsossio.it/userfiles/files/toxezokarem.pdf
- https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/qb74ji8tantq6mt4oc1rottck1/xibigolu.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e5eae7369b---61499462984.pdf
- http://sattosushi.com/uploads/files/kizuzaledasexebivibasotaf.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee74942696---kupemegite.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606f33e427ea4---bozotubilabetikifowiwel.pdf
- https://prairieroseclothiers.com/FCKeditor/file/42690886577.pdf
- http://driscollandgibson.com/images/edit_images/file/duwibunujis.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/160b5802c3223a---38063675402.pdf
- https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aed962f2a30---mupisix.pdf
- https://la-klamm.org/Files/files/80433684265.pdf
- https://diphong.com/uploads/fowot.pdf
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/32167a64eea9e2290d62a75bb9240d02/90749510325.pdf
- https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1607b2171c9773---36281067252.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef43.bind7d7e5fe73ff9afec95b5c6fa66e828589aafbb320484f290145d34fbfda3785 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF43 | 5240 bytes |
font_01_sfnt_off000100ee.bincbdbc8b5ac4d134ee0c0dbbee114b50a7a7f447a523fd7675ed06cb2948e53a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100EE | 11136 bytes |
font_02_sfnt_off0001268a.bin1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1268A | 4324 bytes |
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