MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious or phishing content. While no scripts were directly extracted, the nature of the links and the detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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 https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606d57361c173---mitafumizupon.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/abd7790bfad3f51b73388fd5fd57962b/kesunaluwuvidagak.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3f9fa0622---71662299538.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160c6b961e6fef---83458328114.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/16091097303364---jikuxuzojojopuxevaxik.pdf
- http://bigxra.com/uploadfile/file/2021052722563673499.pdf
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/nke2b06ivg96mue2a7ekaed9sf/50473415755.pdf
- http://londonjip.com/userData/board/file/tudigedojobuw.pdf
- https://okud-istra.hr/userfiles/file/94686332382.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160ab44f3a0413---46140728486.pdf
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/4l3gf44nhon26agpt7hb2c5one/56905903322.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/a6rg2q2296f1afp6b8paurafc6/74146359464.pdf
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/24ff525813f55e8412e0bd12bfcbfd5e/3825407831.pdf
- http://domeinbeverdonk.be/assets/files/file/65141832241.pdf
- https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/eed804f68238fbcc5cf901d4e9a1fb44/24414873295.pdf
- https://mobilieroccasion.fr/uploads/file/34166660284.pdf
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/mpl8ra1cejacda1nj2j741fp57/gatipupi.pdf
- http://glina-master.ru/admin/ckfinder/userfiles/files/vuxolapomevukafa.pdf
- https://prairieroseclothiers.com/FCKeditor/file/65299843745.pdf
- https://bjjewels.net/nbloom/fckuploads/file/xolegogavosij.pdf
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5d3bde35a---72746861023.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=classic+hollywood+movies
- 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_off000111eb.bin010c73916004f7d38468060603fe1a3cff3611d570eeca1877e59d8b12e40f1b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111EB | 17960 bytes |
font_01_sfnt_off00014101.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14101 | 16792 bytes |
font_02_sfnt_off00015918.binb9f12b56e99ee87f6ec08961be68333cf0d6882e717585bfa5ef469124f2fbcf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15918 | 10632 bytes |
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