MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript and a large number of external URIs, many of which point to disposable hosting or compromised CMS upload directories. These elements indicate the PDF is likely used as a lure to redirect users to malicious sites, potentially for phishing or to download additional payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
-
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
-
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.
-
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.
-
Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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=how+to+switch+to+new+android+phone
- https://xosobacninh.vn/webroot/img/files/gobopeniwileponutudidegit.pdf
- http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/sujumevuno.pdf
- https://tttinox.com/upload/userfiles/files/32664521919.pdf
- http://shengyaweb.com/uploadfile/file/2021091110100280.pdf
- http://daejonggyoyc.com/userfiles/file/20210910214425.pdf
- http://cornaredo.gattinonimondodivacanze.it/themes/userfiles/files/53505254702.pdf
- https://pypconsultores.mx/userfiles/file/51315339927.pdf
- http://darslaska.org/ckfinder/userfiles/files/67814783866.pdf
- http://andreuma.madteam.net/ckfinder/userfiles/files/dabajav.pdf
- http://ccadl.com/files/20210912171934.pdf
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/2k1cr1dblcefclmbdkdqeqqep9/56460543134.pdf
- http://tovicetour.com/FileData/ckfinder/files/20210905_FC2DDAAE1AA2A736.pdf
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ffc26a4aee---43304975906.pdf
- https://fotoprint.lv/downloads/file/zerodiju.pdf
- http://teamwork-poetschke.com/ckfinder/userfiles/files/movigotulipotizafero.pdf
- https://8foro.exceltur.org/exceltur_nuevo/ckfinder/userfiles/files/6668272865.pdf
- http://ubytovani-budejovice.cz/picture/vtextu/file/jepezonadebajisesuwujobaj.pdf
- http://estatepie.com/files/userfiles/file/mosekivapasirora.pdf
- http://sziazsauto.com/uploads/files/famesefok.pdf
- http://uptownherndon.com/uploads/files/31573848291.pdf
- https://economiadecomunion.com/ckfinder/userfiles/files/58370842767.pdf
- http://ventensis.lt/public/ckfinder/userfiles/files/93038494026.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e9c1698e70---45113040055.pdf
- https://arrayamed.com/userfiles/file/jijuxabopanu.pdf
- http://xn--2e0b95unoa536adofm5h.com/userfiles/file/76969594804.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_off0000dc9c.bine17ddba49f264cbbaf82aa88c27ef8b3f97d4768fc80fcf0d4abb1e7efd777a5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC9C | 10644 bytes |
font_01_sfnt_off0000f4f0.bin08dedf51d7350cc34a274e5492e869769e0eec47ea965711a34995847085421e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4F0 | 17788 bytes |
font_02_sfnt_off00012333.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12333 | 16792 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.