MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, indicating a link farm designed for redirection. The ML classifier strongly flagged this PDF as malicious. The presence of a QR code lure further suggests a phishing or social engineering attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 6
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://pistant.ru/uplcv?utm_term=mx+player+for+pc+apk PDF link annotation
- http://fatename.com/uploads/files/202109060427244011.pdfIn PDF document text
- http://studiosiriosrl.it/userfiles/files/jarawetikepufowuziwif.pdfIn PDF document text
- http://studioaeditecne.it/userfiles/file/85488670697.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/809fff04f44631995699bbc926258d72/48756902063.pdfIn PDF document text
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16138a60181b59---silam.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/v4g565unj1jof5274umjuc80c3/66669957823.pdfIn PDF document text
- https://www.meditech.cz/ckfinder/userfiles/files/jofukugokovapizogaz.pdfIn PDF document text
- http://jshtextile.com/UserFiles/file///pojelasufizujupuwizixumil.pdfIn PDF document text
- http://esejsc.com/upload/files/59027859357.pdfIn PDF document text
- http://daugiavanthienphuoc.com/media/ftp/file/kemenuxafilenikadomawu.pdfIn PDF document text
- http://kimandyoo.com/userfiles/file/safez.pdfIn PDF document text
- http://studiopol.it/userfiles/files/840732660.pdfIn PDF document text
- http://iiiemjobs.com/FCK_Editor_Images/files/27395983163.pdfIn PDF document text
- https://ural-aiti.ru/admin/ckfinder/userfiles/files/geralive.pdfIn PDF document text
- https://esperanzadeavila.com/fotos/file/63914316922.pdfIn PDF document text
- http://ityab.com/cache/fck_files/file/52779094330.pdfIn PDF document text
- https://denizlihorozu.com/resimler/files/65038152422.pdfIn PDF document text
- https://euroroma-bg.org/files/file/49247772883.pdfIn PDF document text
- http://herium.net/FileData/ckfinder/files/20210908_B7F113320C5AEBB5.pdfIn PDF document text
- http://runo34.ru/attachments/file/45100005378.pdfIn PDF document text
- https://realxenon.ru/uploads/files/jinoxevil.pdfIn PDF document text
- https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/4769039512.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_off0000c897.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC897 | 10312 bytes |
SHA-256: 46cd5335bd7fb6b32311f507ae220b4e75589faeef0b525aca33da722c0caa47 |
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font_01_sfnt_off0000e009.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE009 | 18076 bytes |
SHA-256: 9dcac990fe2573b77e3d82acfd2ec07cf65c20bcaf43c5ce1dcff79c562f5898 |
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font_02_sfnt_off00010ed8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ED8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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