MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS upload directories. These links form a link farm, likely intended to redirect users to malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://weighlessthisyear.com/ckfinder/userfiles/files/niwametipuwozemiza.pdf
- http://autoscuolavalerio.it/userfiles/files/lojene.pdf
- http://thebrownbag.vn/upload/files/garuboges.pdf
- http://iknow.pl/files/file/99600633532.pdf
- http://portofmiamitunnel.com/system/js/back/ckfinder/userfiles/files/nibegef.pdf
- http://rc-modeller.se/images/file///jibabakudoxesaxisivi.pdf
- https://momsgardenfoods.com/ckfinder/userfiles/files/93142040406.pdf
- http://datong-travel.tw/upload/ckeditor/files/20210913060118.pdf
- https://guptajimarriagebureau.com/userfiles/file/23440437135.pdf
- https://mundolibre.cl/uploads/userfiles/files/mobulotomog.pdf
- http://babijie.com/upload_fck/file/2021-9-18/20210918092632773864.pdf
- http://eunlocker.com/Images/Editor/file/vigopasitusikibebusepire.pdf
- http://www.peritaonline.es/ckfinder/userfiles/files/gunizifakofudamibuwelu.pdf
- http://thienminhgroup.com/uploads/userfiles/file/25521147302.pdf
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/31bace7fb56972ce509cabe2ccc87945/10722575429.pdf
- https://cicimanis.com/contents/files/pabuf.pdf
- http://ambiance-cinema.fr/wp-content/plugins/super-forms/uploads/php/files/5fdfab8a93747c90cbcfacbcc995bff5/99796429604.pdf
- https://noursportevents.com/wheelmarine/userfiles/file/2723840288.pdf
- https://madame-tina.com/ckfinder/userfiles/files/geperaburokun.pdf
- https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/1ae671b454e87b169628b4fcc3054ce9/91187574940.pdf
- http://maschimaurizio.it/userfiles/files/76119509054.pdf
- https://medius.sk/userfiles/file/xuwututaxulupudejumupema.pdf
- http://w-w.cn/isee/pfm/cms/uploadfile/fck/file/gazafigapazatasekolu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=download+fortnite+android+free
- 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_off0000b103.bin380e086fed14d7478c3e8c2299605c382a3b5fd77abb712a604fa4a386a9fb26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB103 | 18656 bytes |
font_01_sfnt_off0000e102.bin17e1cd298d07a3bad28278e3bbdfa8c0f7b2e39959c065e617de6b6407bfc0fb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE102 | 10268 bytes |
font_02_sfnt_off0000f83a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF83A | 16792 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.