MALICIOUS
116
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable domains. This behavior is consistent with a link farm designed to redirect users to malicious content, potentially for phishing or malware distribution. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 http://chongros.com/userData/board/file/mijobowi.pdf In PDF document text
- http://jingkangchem.com/upload/files/pokunekelugok.pdfIn PDF document text
- https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16138a254d8a38---gumawuragajegalokoriwilap.pdfIn PDF document text
- http://xn----dtbhwhggdaoqfh3d.xn--p1ai/media/file/5530070584.pdfIn PDF document text
- http://npi-management.com/ressource/site-image/files/nubuwajexame.pdfIn PDF document text
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/31c44485856f0a8c03aeee1024e12a43/54296451008.pdfIn PDF document text
- https://lmetinternationalschool.in/ckeditor/ckfinder/userfiles/files/76291736829.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/e6d3ef9a408f8ef30532e22c58153ad2/nuzajogesuxadopojogope.pdfIn PDF document text
- https://linker.tw/files/pitelumejitimoxi.pdfIn PDF document text
- http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/7bc8927ac42cdd248285fa986e2e2dcc/dinebalumuj.pdfIn PDF document text
- https://jeevadhara.org/work/london/userfiles/file/17050469449.pdfIn PDF document text
- http://descanso.verareyes.com/ckfinder/userfiles/files/93121172741.pdfIn PDF document text
- http://anneadamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/ligesefi.pdfIn PDF document text
- http://business-baltic.com/myfiles/dok/47508169073.pdfIn PDF document text
- https://sensesgrouphk.com/louis/STARKGROUP/ckfinder/userfiles/files/50844267747.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/5b15288f718b12bb7eaf92cc6069c655/55916275218.pdfIn PDF document text
- http://www.peritaonline.es/ckfinder/userfiles/files/rukekelopavosineludo.pdfIn PDF document text
- http://www.mousumibanerjee.com/fckimages/file/59475100910.pdfIn PDF document text
- https://fengshan-zhennangong.org/upload/ckfinder/files/63996254213.pdfIn PDF document text
- http://radio6deenero.com/uploaded/files/terebasisiva.pdfIn PDF document text
- https://cleanenergy.mn/uploads/files/98201779953.pdfIn PDF document text
- http://capital96.com/userfiles/file/pasazakubegebepakitakufak.pdfIn PDF document text
- http://xingzhongjing.com/userfiles/file/20210910104520_1352374612.pdfIn PDF document text
- http://faurau.com/luodan/images/userfiles/file/famapemobakelaxe.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=dread+phoenix+p4+qr+codePDF link annotation
- 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_off0000e484.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE484 | 17744 bytes |
SHA-256: f39d13805bf1691aa84503176f9da242aa19aed59379d9018384cbd0f05df257 |
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font_01_sfnt_off000112cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112CF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012ae6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AE6 | 10628 bytes |
SHA-256: b5268856fa83ef0a79ea97db0b84a67bc58cdefb3978f00cfeb040e542e025c7 |
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