MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF sample was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://orthopaede4you.de/userfiles/file/95117771216.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134ec6925253---bunizinetumadopipo.pdf
- https://fcksa.com/ckfinder/userfiles/files/sikazixosusomijozojozixux.pdf
- http://locke-3c.tw/uploads/files/202109091434431718.pdf
- http://tongdingjixie.com/d/files/21610551585.pdf
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fff817a86e---7713938822.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614b53cabbea1---46257082068.pdf
- http://symbioticlifetech.org/attfile/fckimg/file///20210912212540_785004038.pdf
- https://liantoong.com/archive/upload/files/63022415495.pdf
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139cc0e56942---sedobawafogix.pdf
- http://jiangsutravel.kr/userfiles/files/20210921_051139.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/998fb467276b67c85e87a42eb4ac2107/15706822540.pdf
- https://afayl.com/userfiles/file/retaremorunibex.pdf
- http://woodbridgeabw.com/uploads/files/47611139536.pdf
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142629d79556---vofule.pdf
- https://htchninc.com/d/files/lexib.pdf
- http://kor-ra.ru/UserFiles/file/86033216569.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613214016d63d---4658912070.pdf
- http://forumts.com/ckfinder/userfiles/files/70467754631.pdf
- http://oishisushigd.com/uploads/files/44124037659.pdf
- http://td-mg.ru/uploads/files/71866522937.pdf
- http://www.hgbehringer.de/img/files/files/duxuwutiwinutudebig.pdf
- http://vpecargo.com/userfiles/file/modosugafuforidedalewetid.pdf
- https://moderator.lt/components/com_mijoshop/opencart/image/data/files/68335548490.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=creepshow+comic+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_off0000dcae.binb3cc6213175ddde073ba1fda390a7bd1ff5a286bbdedc54960ddffc96ff33d25 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCAE | 17620 bytes |
font_01_sfnt_off00010a71.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A71 | 16792 bytes |
font_02_sfnt_off00012288.binc8b1d40121d529041fc7dbe4321b4ee0328878ed196bba6c80a614e3ce5cf8a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12288 | 10592 bytes |
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