MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links pointing to compromised WordPress sites, likely serving as a link farm to distribute malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the nature of the heuristics suggest a phishing or malware distribution scheme, possibly related to software piracy given the 'serial photoshop cs6' URL parameter.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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=serial+photoshop+cs6 PDF link annotation
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/c5d727eb718d0f4ac075c1e970a6978e/91793724933.pdfIn PDF document text
- http://schodylux.pl/userfiles/file/32092103567.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16078105cad792---9236139548.pdfIn PDF document text
- http://www.saito-ken.jp/userdata/file/delitudimabetubeziwi.pdfIn PDF document text
- http://www.clc-engineering.com/siteuploads/editorimg/file/66932078137.pdfIn PDF document text
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/f6fffeb23a2b5b7ca2b029f2f1c1437a/71701626091.pdfIn PDF document text
- http://ats-dz.com/userfiles/file/34183063215.pdfIn PDF document text
- https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086932c3e591---12894143372.pdfIn PDF document text
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/0jupqvpl3u2fq101jbo5cjq0uo/gotevenomizarikoxuko.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160b79e6ca1aad---kaliw.pdfIn PDF document text
- http://hydrogears.com/survey/userfiles/files/8169280542.pdfIn PDF document text
- http://apexhealthnutrition.com/newerac2c/userfiles/file/wadajo.pdfIn PDF document text
- https://mldom.xyz/web/img/podborky/files/48007954990.pdfIn PDF document text
- https://www.demetagras.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073039ccf650---51217615567.pdfIn PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/4mne14p7eiik266mj0jdpjoklj/tokos.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/gu9h5o1v67k04e1st8vfrp9gt7/najapuxefizeruz.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_off00011902.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11902 | 5280 bytes |
SHA-256: cde48ce513730825921e546a790b0ee0595b4834a8c8299b817cd606575ed685 |
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font_01_sfnt_off00012ae3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AE3 | 11480 bytes |
SHA-256: 74f0ec2584b8b0221e9cb3d10fc345ca63578874a3c2e0e239e4513487f065bd |
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