MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm with numerous URLs pointing to compromised WordPress sites and other disposable hosting. The document body, though heavily obfuscated, appears to be a lure related to a book summary, likely intended to trick users into clicking malicious links. No scripts were extracted, but the presence of multiple compromised URLs suggests a phishing or malware distribution campaign.
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://krisoc.ru/uplcv?utm_term=the+girl+who+can+ama+ata+aidoo+summary PDF link annotation
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/be21a037846507a7459dca875aeb44d5/nabejor.pdfIn PDF document text
- https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c149b840d0---55643011311.pdfIn PDF document text
- http://www.makattakasinti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfa893690f---49883371075.pdfIn PDF document text
- http://wrhs1967.org/clients/6/61/617565fc8afb9cc6d18abf932d248b7a/File/vulikubepexamoxisogised.pdfIn PDF document text
- http://ankamet.com/userfiles/file/30042362737.pdfIn PDF document text
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/v64uv4v2t5cct99trgmgh67s87/dopikotozewemutuwuzijud.pdfIn PDF document text
- http://qhs1978.com/clients/d/dd/dd8db5a278a7ad55a2ada34b8e38ebcc/File/80921999602.pdfIn PDF document text
- http://oreade-breche.fr/userfiles/file/66266768466.pdfIn PDF document text
- http://geyikkimya.com/userfiles/upload/file/vajikunir.pdfIn PDF document text
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/eed3647abf104609dc803d573d565d31/32411766974.pdfIn PDF document text
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16080ef2ce35f6---balaxinawabu.pdfIn PDF document text
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/93bcafff9a4d1f519696298446ba68df/winodopizi.pdfIn PDF document text
- http://fobosgrunt.ru/files/ckfinder/files/xowebevojuxiwebafuj.pdfIn PDF document text
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/mslanmcac7mu68nnqtkm7a34vd/zuwisejefezasarevif.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/54500c50d743eac83917c8814d8d52db/xupomonupeg.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000104f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104F6 | 5496 bytes |
SHA-256: 000a1c3ca4d0b28b1581ab5735e92e610c8d7ca25f90a2b5f513abc3ab40f6fa |
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font_01_sfnt_off00011793.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11793 | 11220 bytes |
SHA-256: 66bea9b90fd41111fa4007df8e7b3d18f90a70df99ec976e1d00754343787e23 |
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