MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm and by a ML classifier as malicious. It contains numerous URLs pointing to external websites, several of which are hosted on compromised WordPress installations or disposable domains. The ClamAV detection 'Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0' further supports its malicious nature, likely serving as a phishing lure or a distribution point for further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://jngf.cn/files/file/8528160829.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075205f33fba---15445532954.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/nilkbqmf46go6gpmfb8gci0ifs/xajawimubetipini.pdf
- http://buergerforum-tirol.at/file/9132147308.pdf
- http://adamlegal.com/userfiles/file/zibelijerewin.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c591fb2fda---wuwidevuxe.pdf
- http://adams-gold.ru/archive/image/file/wafokofugadod.pdf
- https://monuments-msk.ru/wp-content/plugins/super-forms/uploads/php/files/1af5fe264d417aba3fd30295d5b7c301/87969967930.pdf
- https://karapinarinsaat.net/userfiles/upload/file/40053042356.pdf
- http://reutlinger.pl/userfiles/file/xarazegekaxura.pdf
- http://rotang.net/userfiles/file/3467555786.pdf
- http://arniestribu.com/campannas/file/61124761083.pdf
- http://assushop.com/userfiles/assushop.com/file/lunebudaga.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607fbd6ed958c---letisidubufodokuvezuxo.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085325b3f63c---53475141545.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbcc9ff3da3---nolidozo.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e9835258ba---2441824153.pdf
- http://ahcxdq.com/uploads/file/311750559504.pdf
- http://uni-farm.pl/ckfinder/userfiles/files/pafexud.pdf
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607614c066e69---40189558103.pdf
- http://moveworldtogether.com/datas/files/nufoduzadajamapezofewetex.pdf
- http://chinajessie.com/seadata/data/uploads/img/file/16249421960.pdf
- http://albino-pitti.com/pub_img/file/tisolisokagujusogezupe.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=all+search+history
- 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_off0000ce08.binfd1ed794ab1ec9e9febe35943d92ebac4ee0e5e351550d30dd11b11004000d8e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE08 | 16256 bytes |
font_01_sfnt_off0000f841.bine6ec40b73cb6f57c452ce265336b3a506aac6a84d25d4720faaa996692ff5b2d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF841 | 10320 bytes |
font_02_sfnt_off00010fbe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FBE | 16792 bytes |
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