MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs pointing to potentially compromised websites and link farms, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://oniceh.ru/uplcv?utm_term=hunger+games+read+online
- http://etenindex.nl/images/uploads/33779757626.pdf
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/16137fde9cdcc9---bofedivututepobinisewanon.pdf
- http://indianspringhomes.com/userfiles/files/sifibagowe.pdf
- http://uptownfallschurch.com/uploads/files/vavawovumuva.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/b72e15cde1c89fae666364ca106bd765/50953953513.pdf
- https://www.mmgrowersg.com/ckfinder/userfiles/files/bizewaxepu.pdf
- http://embeddedhr.com/ckfinder/userfiles/files/80055834339.pdf
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613ad2825976b---zevabimez.pdf
- https://gopherscopes.com/userfiles/file/konujumuvewog.pdf
- https://sistemkabin.com/ckfinder/userfiles/files/61591692887.pdf
- https://infrapanel-alegjobbfutes.hu/userfiles/file/44563235410.pdf
- https://mystruggle.uk/indigo/ckfinder/userfiles/files/6468846839.pdf
- http://oikoscoccatoarchitettura.com/userfiles/files/46240655940.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161404d727584a---78025658405.pdf
- https://adtw1.elfjane.com/ckfinder/userfiles/files/verovemunawiditilopata.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161358be46104a---babekiluvukosibedaxep.pdf
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/9d14511f9bd4e428a8a1e97055719920/88969077639.pdf
- http://novelinternationalschool.com/ckfinder/userfiles/files/19843988776.pdf
- http://thunderstar.cn/userfiles/file/20210921032255410745847.pdf
- https://linker.tw/files/12505057650.pdf
- http://byecook.com/ckupload/files/rofik.pdf
- https://westhigienia.hu/editor_up/wukapepopakawobemaju.pdf
- http://lokalizacja-gps.pl/userfiles/file/gofomizobolaridata.pdf
- https://pre-www.bridge-college.com/uploaded/ckeditor/files/wogojeputumudixemofelame.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_off0000b3a1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3A1 | 16792 bytes |
font_01_sfnt_off0000cbb3.bin72d336cf1d3ab07be674999c93ff687ada8c5263dcefc177ae66f2cd24e17896 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBB3 | 14640 bytes |
font_02_sfnt_off0000f077.bin09b927e01fbd0841dbb2550b10672943ade6aa095d7b4a5bed535720a5e32c7d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF077 | 10584 bytes |
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