MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://nomylo.ru/uplcv?utm_term=small+pdf+to+powerpoint+converter PDF link annotation
- https://alshaabcoop.com/userfiles/file/bakixoletoxunukirudu.pdfIn PDF document text
- https://miaousland.fr/ckfinder/userfiles/files/fajefawesupalamuli.pdfIn PDF document text
- http://tablica-nieruchomosci.pl/uploades/fckeditorfile/zepisiwowabajomu.pdfIn PDF document text
- http://jyotiacademicpress.org/uploads/file/68563859555.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/aslm17d43asa9udtoi7nar2nko/61067889824.pdfIn PDF document text
- http://vantaidongsaigon.com/uploads/files/gigomupebubij.pdfIn PDF document text
- http://bawaconstructions.com/editorData/file/48151265331.pdfIn PDF document text
- https://hse.tw/upload/file/gatoranad.pdfIn PDF document text
- http://debandhelder.nl/ckfinder/userfiles/files/55261553867.pdfIn PDF document text
- https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/7ac1f284e073e6a372cd9362b19d7d81/3669680576.pdfIn PDF document text
- https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/4306a15b39a4241b4e768e90ac16d618/punovanowep.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1610d3f90b5a97---powofuwak.pdfIn PDF document text
- https://clickkedai.com/userfiles/file/2111800210.pdfIn PDF document text
- http://judyzscotties.com/clients/1/1f/1f1ef5c9f72ce0e5bea5babf356718c6/File/vunefufilowamoxij.pdfIn PDF document text
- http://ithalattagarantibelgesi.com/resimlerfiles/duluposuvijewowigexojuki.pdfIn PDF document text
- http://petra-dario.info/upload/datoteke/7896376865.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/51995994790.pdfIn PDF document text
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ddbc3cebc---85298441874.pdfIn PDF document text
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b91a6f18193---57958704886.pdfIn PDF document text
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/9a6ffea1da745d0f5502557b605d23f1/vafuxogifupisizoma.pdfIn PDF document text
- http://owv-sad.de/userfiles/files/91877481480.pdfIn PDF document text
- http://futurepoolandspa.com/ckfinder/userfiles/files/75980283393.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16077e1da31d5a---23704869969.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074b35963c63---zopono.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_off0000cf8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF8C | 17616 bytes |
SHA-256: 64247bad128f27226c72ea1ee5ba37f75b4ecfddca81c17ad09368b58b203bc2 |
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font_01_sfnt_off0000fce9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCE9 | 10840 bytes |
SHA-256: c7defc1cad5d3166644d2b515ef7a2490aac5733000199fb081840c0b1651ccd |
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font_02_sfnt_off000115f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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