MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous links to external websites, many of which are hosted on compromised WordPress sites or disposable domains, suggesting a link farm or phishing lure. The presence of embedded URLs and the overall structure point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://smidgel.ru/uplcv?utm_term=forensic+entomology+introduction+pdf PDF link annotation
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/hd4b06l59q27iqa5940eta6ov7/45690651610.pdfIn PDF document text
- http://pngroup.pl/ckfinder/userfiles/files/34309152305.pdfIn PDF document text
- http://splhardware.com/UploadFile/file/2021072917383173499.pdfIn PDF document text
- https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611bb6ad66e30---kisodenujan.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/d569d89dc07979680a408ea3e6d2f44c/3837863455.pdfIn PDF document text
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/955f8lhli4e2frhflpa8hll7d0/vawodezutijiko.pdfIn PDF document text
- http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b2774b881ce---fifemazorodexuwu.pdfIn PDF document text
- http://tecnoservizi.com/userfiles/files/bugivomojinuzefopobekiw.pdfIn PDF document text
- http://www.abcklima.hu//data/editorfile/50358576401.pdfIn PDF document text
- http://fanta-life.com/userfiles/file/86915131304.pdfIn PDF document text
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/08adb672c44be698fb9384e614459882/nijifaruwimarigafol.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/c707a4c10446fd8c3bbd85956c2cd2a4/38878671169.pdfIn PDF document text
- http://motopujcovnateplice.cz/userfiles/file/dogep.pdfIn PDF document text
- http://ei-windykacja.pl/upload/file/lojujilizotololupa.pdfIn PDF document text
- http://majorpropertygroup.com/userfiles/files/jojebenepago.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/lavubofonekugem.pdfIn PDF document text
- http://schokozentrale.de/idata/nepejulupisoguj.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609e82b95742f---keboxigefebekenunetirova.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f56de2c2c8---nobetakabizesobewagukinu.pdfIn PDF document text
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160865bb76a78f---latuxulurofe.pdfIn PDF document text
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/5p9rbtpf4e96cmpn8d063au09t/98587333556.pdfIn PDF document text
- https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160853bf4e3d48---77958232983.pdfIn PDF document text
- http://turskazka.ru/ckfinder/userfiles/files/99438935124.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/828ce34c553a0422bd9b867cc95b8ed2/kumizur.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_off0000be24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE24 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d63b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD63B | 10992 bytes |
SHA-256: f0aa12172e9fdb3a5a2a00819b3d2c7b91bfe56b193248bd505947c765a0cb1d |
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font_02_sfnt_off0000ef8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF8F | 15780 bytes |
SHA-256: 69608af743315be7db379290119dced6fb015f33c59ca7acabc530e52f3667b2 |
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