MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many of which are hosted on disposable domains or compromised CMS upload directories, indicating a likely attempt to redirect users to malicious content. The presence of these link farms suggests the primary goal is to facilitate phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9979
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://ketchas.ru/uplcv?utm_term=zombie+ate+my+friends+download PDF link annotation
- http://eubeer.vn/uploads/files/55066220192.pdfIn PDF document text
- http://mkconline.com/landmark/ckfinder/userfiles/files/74982854494.pdfIn PDF document text
- https://bushregenerators.info/userfiles/files/lodizejirudeguretutuvu.pdfIn PDF document text
- http://nhadep30giay.com/uploads/image/files/sajozexof.pdfIn PDF document text
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/peneravobebiverew.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/161378cf9ad8ca---94527774425.pdfIn PDF document text
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/pegvgcp8b8dbh1ish8du1dllt0/86183473943.pdfIn PDF document text
- http://tucholainfo.pl/userfiles/file/5760624940.pdfIn PDF document text
- http://grandioso.asia/editor_upload_image/file/80246928824.pdfIn PDF document text
- https://elegune.net/files/galeria/files/85991624297.pdfIn PDF document text
- http://tomdythai.com/userfiles/files/pebuwunokukazusutuwej.pdfIn PDF document text
- http://1careglobal.com/upload/files/9511344942.pdfIn PDF document text
- http://tea-ra.com/user_data/upload/save_image/files/65160007303.pdfIn PDF document text
- http://sotel-perm.ru/site/file/wegojoralezosatoditujuxe.pdfIn PDF document text
- https://bharatceramics.in/ckfinder/userfiles/files/99264601433.pdfIn PDF document text
- http://sportschoolindex.nl/images/uploads/juzipobasezafuwuzej.pdfIn PDF document text
- http://aolisenjiancai.com/data/files/21792848605.pdfIn PDF document text
- http://aburobocon2019.mnb.mn/uploads/files/68724293596.pdfIn PDF document text
- http://thingsantiquesla.com/userfiles/files/lerovefopujizagonu.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16148235fcaade---7694154398.pdfIn PDF document text
- http://music-summer-courses.eu/upload/files/kerazakog.pdfIn PDF document text
- https://rdw-wolf.de/backend/ckfinder/userfiles/files/2909940672.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_off0000ee14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE14 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001062b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1062B | 10820 bytes |
SHA-256: 83e0526c27e32d55ac6bfc979afdbe8ad34307cb117aee0839ab5bf530942521 |
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font_02_sfnt_off00011f30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F30 | 18508 bytes |
SHA-256: f44b0df5e7a6ada1984966d07ac7c214d3bc4c5fa77747a367d2745c1e212649 |
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