MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Numerous embedded URLs were extracted, many of which point to compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The presence of a 'utm_term' parameter in one URL indicates a potential marketing or tracking element used in phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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://ketchas.ru/uplcv?utm_term=unlimited+money+in+hungry+shark+evolution
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc643d25c6---donosifazadibibufotabitun.pdf
- http://vantaidongsaigon.com/uploads/files/57701309504.pdf
- https://bdata.vn/upload/files/libivo.pdf
- https://mitrasuksesku.com/userfiles/file/fuxugegep.pdf
- http://alsace.annuaire-regional.com/ckfinder/userfiles/files/83130996837.pdf
- http://ryouhurt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/78392799079.pdf
- https://augsburger-dartliga.de/uploads/file/13271012834.pdf
- https://wodepcb.cn/uploadfiles/files/19247694743.pdf
- https://cuatudongnhatrang.com/uploads/files/jelubi.pdf
- https://llbyggodesign.se/UserFiles/files/mizepi.pdf
- http://ohsongpharm.com/ckfinder/userfiles/files/refiponilerilunilisekupe.pdf
- http://studiobaldizzone.com/userfiles/files/29277686217.pdf
- http://unityproductions.com/upload/files/13785318929.pdf
- http://chupanhnoithat.vn/upload/files/73316807966.pdf
- https://chennothinterios.com/uploads/file/fulosimuditedozapudejev.pdf
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145384567dbb---debixidevu.pdf
- http://chanhbon.vn/media/ftp/file/gawikinomerosozimugar.pdf
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a2e50c8517---nizorozuxizejutuposo.pdf
- http://timandlor.com/userfiles/file/jedum.pdf
- http://daimarconstrucciones.com/images/admin/file/pikibarimezodum.pdf
- https://cornwallstaffagency.com/userfiles/file/zepalafotevikupis.pdf
- https://icrs-as.com/userfiles/file/90221896294.pdf
- https://architektor.ru/uploads/file/83811498429.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_off0000b626.binde66b2f7e3dea3e20eb42c2184e45d855b07d4d3a5e0dbc07055f66b0b84f685 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB626 | 15508 bytes |
font_01_sfnt_off0000dd41.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD41 | 16792 bytes |
font_02_sfnt_off0000f558.binf3f57efd1366b01f34a062a27f4f812137db3a2a13f697478b63f9a9f03c88ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF558 | 11076 bytes |
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