MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a link farm. It contains numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. The PDF structure and embedded links indicate a phishing or malware distribution vector, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://banglatalkies.com/dynamic-images/cms/file/23763456980.pdf
- https://endoaccessories.com/wp-content/plugins/super-forms/uploads/php/files/9pe889j77v8lltkb0illa216us/51454210203.pdf
- https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/r91lv28gkrv0ji1slgb4c16l2f/46582705088.pdf
- https://vinacomvietnam.vn/uploads/news_file/kixevediwixexifotoso.pdf
- http://okwmd.com/upload/fckeditor/file/tomen.pdf
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160803df19d480---pitovat.pdf
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/50c079c13177864f58e19560aa9268cd/88637686975.pdf
- http://alemotta.com/resources/original/file/5334700614.pdf
- http://travelport.pl/userfiles//file/zixerokijapobemezixodive.pdf
- https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/b5422781a699ba21e4b5cbb46df4650d/fenagaka.pdf
- https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/3ef66ef755f6c12f417915a97c3c755c/zaletopuzizevujekape.pdf
- http://ersatzmonitor.de/userfiles/file/sukirezaw.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609b888e101e0---26856769155.pdf
- http://arablift.net/userfiles/file/84486665135.pdf
- http://vladjurnalist.ru/archive/file/45336664515.pdf
- https://area34.info/wp-content/plugins/super-forms/uploads/php/files/bi8lbq018s4qaifsko4bpns182/rujovalof.pdf
- http://eltonltd.ru/sites/default/files/uploads/72238395633.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160941347c5c5f---bovuwevibiwepezoviwo.pdf
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094ad80a9e9d---78457118676.pdf
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ab5154680a7---87838982126.pdf
- https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/0s11uaik0e1657nej4mqat9t61/xazekuxoselixefusirem.pdf
- https://ises.ca/phpsites/vertical_living/uploads/file/25213823701.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/00ha8jfu85vve6tfr3nlthnmlp/rewamevogunarozuli.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/d40889c2b210f2beb6ea4d9bea09687d/fokagebamigiri.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/dd45c14cc54a61e374fdc1765cf67b3d/52828695557.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=stock+keeping+unit+example
- 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_off0000fa95.bin8e72844776baa3f19f2ced36e17c214d1e7c90b5980dd99afa27167b30b08333 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA95 | 10816 bytes |
font_01_sfnt_off0001139a.bincc8275489ddfe2add09a93e2a59b7bba7687a6237a44b10fd976ceeb6d265ddb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1139A | 17340 bytes |
font_02_sfnt_off0001410a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1410A | 16792 bytes |
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