MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to potentially compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The document body is unreadable, but the presence of numerous external URIs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest the document's purpose is to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://lexxyin.net/files/fckeditor/file/peduvagepolusufakojexaf.pdf In PDF document text
- http://aprt1day.ru/file/jowifotagenol.pdfIn PDF document text
- http://uslugi-ogrodnicze.pl/pliki/File/89617402983.pdfIn PDF document text
- https://girilawfirm.com/content_files/files/38624142234.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/6aa315c9e75018a0d6fe8474d7ea094e/gurifuvimorukikosi.pdfIn PDF document text
- https://cissud.it/uploads/ck_editor/files/lexenarere.pdfIn PDF document text
- http://gorsilawfirm.com/userfiles/file/liwoxawep.pdfIn PDF document text
- http://bilcafe.it/userfiles/file/romaxow.pdfIn PDF document text
- http://rockefellersgold.hu/editor_up/10187491315.pdfIn PDF document text
- http://hypotekaprezamestnancov.sk/res/file/4831981414.pdfIn PDF document text
- http://alessandrobelleseveterinario.eu/userfiles/files/lelabobugakusodanomewes.pdfIn PDF document text
- http://uzmansporzeminkaplama.com/resimler/files/24637010934.pdfIn PDF document text
- http://mprime.net/ckfinder/userfiles/files/82844664378.pdfIn PDF document text
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/40682127181.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/d1a121e2dea70bd6aa0a845c052a9b8f/6334995641.pdfIn PDF document text
- http://hausdergesundheit.net/userfiles/files/19140525589.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/16147dbd54d943---todub.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/161583079c9731---xukulemedorose.pdfIn PDF document text
- https://sapporopools.com/contents/files/laxokoripuk.pdfIn PDF document text
- https://anjingliar.com/contents/files/tifalanedafavogomubijipod.pdfIn PDF document text
- http://seoulgreeter.com/userData/board/file/14615384848.pdfIn PDF document text
- http://nail-free.com/ckfinder/userfiles/files/xewoluj.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=the+national+game+of+spain+isPDF link annotation
- https://www.posluh.hr/ckfinder/userfiles/files/97320494123.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000aef2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEF2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c704.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC704 | 15108 bytes |
SHA-256: 154dbd828a755376b3f3d5323d5ca360ea035bef64b29b35ca552215872de00b |
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font_02_sfnt_off0000ed08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED08 | 10668 bytes |
SHA-256: bf169710026ec45c2964b1885d9e89f1af29485a9c32d9b0b031d7589caac836 |
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