MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to various domains, many of which are hosted on compromised CMS platforms or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farms indicates an attempt to direct users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://yummyschool.com/_UploadFile/Images/file/35644614077.pdf
- http://uci.ir/userfiles/file/26456824919.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6dcb2aed26---sikoturejakopinomapami.pdf
- http://househouse.it/userfiles/files/kegajijum.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/16d0938f669a39b09c926b1f7fe62cca/jetadozumopetidebajajoda.pdf
- http://findmecakes.com/userfiles/files/39793575340.pdf
- https://bikeid.net/ckfinder/userfiles/files/98077604782.pdf
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/hppa4pq10iommvqq59dgutusbr/19074150780.pdf
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/96knc32o7e2t4krfd2vpcigchr/bosalabulidemozosivusevum.pdf
- https://koreayokogawa.com/ckfinder/userfiles/files/vitizuduzufaxerik.pdf
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/160982ed9a37d9---97549276606.pdf
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a7cb2f848dd---93647547733.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/3b877574385e2ac51bd76af161f69214/58353742897.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089abb583ffc---96880370938.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/0m3asrip6087fj60j6reooarj3/xaxanirula.pdf
- https://leise.ru/admin/ckfinder/userfiles/files/vimibupimekifabin.pdf
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/ca79ec452e9664a397104a8d27648e5c/8779611139.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd45619009d---45624627145.pdf
- http://all-pass.com/folder/editor/file/84468872934.pdf
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/f76487dbdfd593dac9a7d37e12a88b80/pefomolewifaradosubor.pdf
- http://ehsclassof64.com/clients/b/bf/bfa5c4411462ceee4a19e543862d902c/File/25715876151.pdf
- https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160799760865aa---38793767904.pdf
- https://sieuthimayphat.com/ckfinder/userfiles/files/pepozipegasufib.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1c4d9d3aca---dolumosazosajewugewed.pdf
- http://toeicspeaking.net/_UploadFile/Images/file/defonuzajifabo.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=marketing+plan+sample+for+small+business
- 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_off0000f390.bin97be5b0ad9d4f50f310852ab3953880a4b99f19eabd0df9fe2d5ea6badf10485 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF390 | 16412 bytes |
font_01_sfnt_off00011e10.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E10 | 16792 bytes |
font_02_sfnt_off00013627.bin08f41fb89f375ac0543a4f3f0897b43719d50042a363539c4725446b7a8d12ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13627 | 11024 bytes |
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