MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to external websites, many of which appear to be hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, but the presence of embedded URLs and the overall structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9820
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://inwebjor.ru/uplcv?utm_term=metrical+romance+narrative+poetry
- http://handbook.hu/upload/page/file/25101363935.pdf
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/o63cipaepokn1a6f21i4rp4of0/wajowarizosafegumotabur.pdf
- http://northstarbaptisttyler.com/clients/a/a4/a4b4c2e389351fb2dee96c3f727c6a57/File/90958829842.pdf
- http://allamericannursing.com/userfiles/file/31394226274.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5e956e42c---67301534849.pdf
- http://baaningdoi.com/file_media/file_image/file/71944722061.pdf
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a9714660cde---21025110160.pdf
- http://rauvuonsach.com/images/uploads/files/78860252287.pdf
- https://micast.de/wp-content/plugins/super-forms/uploads/php/files/pabqhforurn7b4jd2fjrb3lasd/dunalosegarolojat.pdf
- http://cs-web-design.de/ablage/userfiles/files/97461334561.pdf
- http://berallebags.com/UploadFiles/FCKeditor/20210606145542.pdf
- http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160986084a2d0c---87558863893.pdf
- http://diysmart.net/userfiles/file/vewigamurivi.pdf
- http://absolutelyneon.com/userfiles/file/30218434743.pdf
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/16079c8669008e---9370003037.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b6753216d60---82245386317.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607131f4035ff---38267559495.pdf
- http://tokyoto.pl/UserFiles/file/najejozemufaxawiboze.pdf
- http://randalljroutson.com/clients/44711/File/raxijar.pdf
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160af6a216dbcc---69568109662.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b7323799b12---65635038735.pdf
- https://bentzendesign.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608409924a7fd---19258307461.pdf
- https://wulf-sanitaer.de/wp-content/plugins/super-forms/uploads/php/files/3fv2om8i0g46d9m842hji4qn62/5439908473.pdf
- http://sweetbasketsbyjackie.com/clients/864293/File/98100444088.pdf
- http://maychamsocda.vn/images/userfiles/file/12522061587.pdf
- https://etonbio.com/newsLetters/images/file/togulosokanotupoj.pdf
- 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_off000118d0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118D0 | 16792 bytes |
font_01_sfnt_off000130e2.bin74f63c78243834ebc913174d4b5a477a26e19ef78baf29be6a6489b21b2d54ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130E2 | 18356 bytes |
font_02_sfnt_off00015f7f.bin617129ae3af95bce613eac35f0b883cf31b3037f5e30857cd026cc3e33f3571b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15F7F | 10540 bytes |
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