MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous links to external resources, many of which are hosted on compromised or disposable domains, suggesting a link farm designed to distribute malware. The heuristic firings and ClamAV detection strongly indicate a phishing or trojan payload. The ML classifier also flagged this PDF with high confidence.
Machine Learning
- Nyx PDF Classifier malicious score 0.9914
Heuristics 6
-
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.
-
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://philabc.ru/uplcv?utm_term=firmware+nokia+5800+download
- http://www.s-prom.si/fileupload/file/jelozowafug.pdf
- http://wakesup.org/userfiles/file/68161081989.pdf
- https://vroa.pl/chplusfiles/file/27967074393.pdf
- https://paradigma.bg/uf/file/sorijome.pdf
- http://shopcloud.cloud/ckfinder/userfiles/files/pitafak.pdf
- http://gediklimakinahidrolik.com/resimler/files/tawodefo.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16130034c42029---89346079356.pdf
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615263f607d25---8298565888.pdf
- https://plentis.eu/ckfinder/userfiles/files/16941768711.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131c2f10869e---lutegejolozugarepugisul.pdf
- https://wroclaw-effatha.pl/grafiki/file/kagilofadofujuvuvan.pdf
- http://www.serge-valentin.net/ckfinder/userfiles/files/katekajotovejonelagi.pdf
- https://drhuanghair.com/uploads/files/202109060608586808.pdf
- http://ageddfjtj.pretty-match.com/upload/files/pufigadaxuji.pdf
- https://meesens.be/KrMee/Tekstverwerker/rodeworevofetafidete.pdf
- https://thehouseconcert.com/ckfinder/userfiles/files/xajezatigi.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/sa238mpadlr71q2tc7tc8938fo/64379736248.pdf
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16146e12a0f9c4---nafip.pdf
- http://thibangoto.com/app/webroot/uploads/files/sasesaxuj.pdf
- https://bengalroys.com/ckfinder/userfiles/files/34513287366.pdf
- http://iwilldoit.ru/uploads/files/files/76989586318.pdf
- https://luminex.pl/upload/file/pufupe.pdf
- http://tekizolasyon.com/ckfinder/userfiles/files/8936496298.pdf
- https://jasz-pap.hu/UserFiles/file/guwolem.pdf
- http://saveondealz.com/ckeditor/ckfinder/core/connector/php/uploads/files/91332993010.pdf
- https://portecitadelle.portecitadelle.ca/ckfinder/userfiles/files/5710725038.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_off0000ba47.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA47 | 16792 bytes |
font_01_sfnt_off0000d259.bin1fcef467c6506ceb1e233dbd0a058df6719b4734de55fd1e3676b737b1569fc0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD259 | 17900 bytes |
font_02_sfnt_off000100af.bine454bd467f143d198dfc08b884463ac47d5345c1f09cb8595939bfa8737c58dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AF | 10760 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.