MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed for malicious redirection. The presence of embedded JavaScript and a high ML classifier score further support its malicious nature. ClamAV also identified it as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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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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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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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://catamma.ru/uplcv?utm_term=line+cookie+run+mod+apk PDF link annotation
- http://bakefruit.com/uploads/files/202109051633559600.pdfIn PDF document text
- http://hybsch.it/upload/file/39205348224.pdfIn PDF document text
- https://yodishit.com/uploads/userfiles/file/dibokarirusal.pdfIn PDF document text
- http://vizit-k.net/uploads/editor/files/dilagagowijepukuzuzurere.pdfIn PDF document text
- https://rafaela-motores.com/userfiles/file/bolozewanabitoxerujub.pdfIn PDF document text
- https://transmilenio.net/datamont/userfiles/file/82714702375.pdfIn PDF document text
- http://yavuzselimvakfi.org/resimler/site/files/86068505367.pdfIn PDF document text
- http://nanopena.cz/upload/file/nojipulesoded.pdfIn PDF document text
- https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/161321c56381f7---tageberizow.pdfIn PDF document text
- http://vetsnab32.ru/userfiles/file/42903725782.pdfIn PDF document text
- http://juentai.com/userfiles/files/vozonoxinuzibo.pdfIn PDF document text
- http://tipsclubcr.com/campannas/file/4663216585.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210911141130695.pdfIn PDF document text
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/fck5s8kt93fso1vqmmgmf4590t/wugir.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/a92e6bea932a5473428baff9f33dc5cc/kalapafotixovade.pdfIn PDF document text
- http://pointerboards.com/uploads/admin/files/54864131001.pdfIn PDF document text
- http://savvyais.com/userfiles/file/52435103361.pdfIn PDF document text
- http://metallpress.ru/files/jafavebevuza.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/51d2cba93819f14a3e8eac02cae110ac/74696155135.pdfIn PDF document text
- http://cloudinfo01.smartevolve.com/images/ckeditor/files/323626349.pdfIn PDF document text
- https://bankkartya.hu/js/ckfinder/userfiles/files/36414370165.pdfIn PDF document text
- http://litroshaber.net/resimler/files/73604735001.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_off0000c51c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC51C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dd2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD2E | 18428 bytes |
SHA-256: 8826432fff2fd2c4dd68b02c7bc09f14d9ba10a4cb418fa1a496b8446c44dfc8 |
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font_02_sfnt_off00010d32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D32 | 10512 bytes |
SHA-256: 7ae79f3c0eddbe253c823a63721bbac0f835c9c60d27d7c1b3df952450086864 |
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