MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was identified as malicious by a ML classifier and ClamAV, flagging it as a phishing trojan. It functions as a link farm, with numerous URLs pointing to compromised CMS upload directories, likely intended to host further malicious content. The embedded URLs and the PDF structure strongly suggest a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606f97e058f99---61306316915.pdf
- http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/160769bdc355ed---xexomitizelorogegeza.pdf
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/61voreggs364j3qpk4mkauls2c/kebisije.pdf
- http://hz-karavany.cz/ckfinder/userfiles/files/povomukobedaxuzuwujejidu.pdf
- http://fitviewer.biz/files/file/20763039393.pdf
- http://htwy.com/upload/file/resoresipi.pdf
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/567f9ee98f8c193753f0306b3e040bde/padazut.pdf
- http://studioego.cz/userfiles/file/kupiludomiwanuwepu.pdf
- https://hanyauntuktesting.com/contents//files/94956477237.pdf
- https://artbynela.com/uploads/file/fatuvimufunalalenu.pdf
- http://lakshimi-kaatsu.com/user_data/packages/default/imgfiles/26832225821.pdf
- http://atallmed.com/userfiles/files/zanideguxejowagor.pdf
- https://davaocarrental.com/images/file/77384261311.pdf
- http://stlnsk.ru/uploads/file/lagizizifizif.pdf
- http://csc-0411.com/userfiles/file/20210621131316_ro862s.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16080a89bc3afc---7396720257.pdf
- http://www.mueblesgamez.com/ckfinder/userfiles/files/61147381982.pdf
- https://airbays.com/userfiles/file/sonutuvisugimenetowefev.pdf
- http://tweddlefoto.com/files_contenidos/upload/files/51557148811.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/3bkhvdtksgs0i8senh9a13l9al/74572045992.pdf
- http://merlegdoktor.hu/tmp/vefekikugofotopewafufega.pdf
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac6530379b5---33515451204.pdf
- http://syuncyoku.jp/upload/file/38456519644.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=how+to+hook+up+vizio+sound+bar+to+samsung+smart+tv
- 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_off000100c6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100C6 | 16792 bytes |
font_01_sfnt_off000118dd.bine384be1500aab82926c191ae5058d7e62e497282e06a7c9d4f004c2e1892df6e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118DD | 11196 bytes |
font_02_sfnt_off00013284.bin27e4f9aa56e4f864de69362d7e890b540dbf0e722eb5d228d1003c5a965c742a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13284 | 17572 bytes |
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