MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised or disposable hosting, suggesting a link farm designed to distribute malware or phish for information. The presence of a download button lure further supports a malicious workflow.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 8
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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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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.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 https://grandhotelushba.com/userfiles/file/70576298071.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/16139b59aabf84---99340991645.pdf
- https://livres-arts.com/ckfinder/userfiles/files/17170108481.pdf
- http://master-br.ru/img/file/natuvamufat.pdf
- http://summitremodelinginc.com/userfiles/files/gepanubezolugamumef.pdf
- http://bangladeshceramicsociety.com/uploads/editor/files/jixorazimev.pdf
- http://thaoduocvn.com/userfiles/image/file/61292529706.pdf
- http://mid-europe-ex.com/images/blog/file/jenegemoburijije.pdf
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/161336d7e6532c---56505408706.pdf
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/642160e80833de2208675ccbd71ef3d1/66789310271.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161301ce28e380---rakixijadaravozi.pdf
- http://hwayinn.com/image/files/20210903_222343.pdf
- https://pasationtravellers.com/root/FCKeditor/file/vojejovanozixug.pdf
- http://sigmabhp.pl/userfiles/file/31881732367.pdf
- http://aodaiminhhanh.com/app/webroot/uploads/files/kodilomagajumumoz.pdf
- http://w3-japan.com/js/upload/files/bupabaridadigakupowetukad.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f1923e0c53---4367483052.pdf
- https://www.domosystem.gr/ckfinder/userfiles/files/dalerazuwi.pdf
- http://akkoryazilim.com/userfiles/file/8896474304.pdf
- https://autohausnschmidt.de/userfiles/file/24675982055.pdf
- http://portalkucharski.pl/app/webroot/media/files/68957081391.pdf
- https://detmers-kontejner.hr/files/34282080798.pdf
- http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/19815892041.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=minecraft+dungeons+apk+download+pc
- 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_off0000d14a.bin5fbac77c764adae23177a7c863e1a4ab5efecc27c30cc66d23c47a9bc7e7c9f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD14A | 18588 bytes |
font_01_sfnt_off000101bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101BB | 16792 bytes |
font_02_sfnt_off000119d2.binadbafb29432a99f3bd72d9cee3b107f96abf8af580a5e5124f36fc3dd6d674b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D2 | 11068 bytes |
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