MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the PDF contains a link farm pointing to compromised CMS upload storage and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, despite some being marked benign, are part of a larger pattern of directing users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9958
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 http://27derajat.com/assets/ckfinder/core/connector/php/uploads/files/66106010505.pdf In PDF document text
- https://zoomkish.com/basefile/zoomkishcom/files/88334856100.pdfIn PDF document text
- http://santehnika34.ru/images/file/supisezuvakigufixuvage.pdfIn PDF document text
- https://perfecthospitals.com/ckfinder/userfiles/files/62553227807.pdfIn PDF document text
- http://grubstreet.ca/ckfinder/userfiles/files/26131965289.pdfIn PDF document text
- https://globalathena.com/ckfinder/userfiles/files/2858144808.pdfIn PDF document text
- https://wonwon.taipei/photo/file/70626889940.pdfIn PDF document text
- http://compsult.net/userfiles/file/xelowexumuvamivaga.pdfIn PDF document text
- http://goforthegreengolfpools.com/userfiles/file/lobususa.pdfIn PDF document text
- http://ukwoodrecycling.com/userfiles/files/didorujixo.pdfIn PDF document text
- http://kirsanov-maslo.ru/uploads/nured.pdfIn PDF document text
- http://logicparcel.net/uploadsEditorfile/tafuzajedi.pdfIn PDF document text
- http://kammerchor-lindau.com/file/52354595391.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143ce0ccbc5c---38752504408.pdfIn PDF document text
- https://billard-hauri.ch/userfiles/file/51783254251.pdfIn PDF document text
- https://www.opsclown.it/ckfinder/userfiles/files/96216731293.pdfIn PDF document text
- http://nhasachnguyenvancu.com/Images_upload/files/fovibub.pdfIn PDF document text
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/632e81105cbd5b93473d32f52a6eca50/dadopozitajutoguwa.pdfIn PDF document text
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/03cb90974adbe42ae5b1ca9751fcfc42/mogusadiru.pdfIn PDF document text
- https://undergroundtakeout.com/userfiles/file/56773229408.pdfIn PDF document text
- http://turhantur.com/turhantur/files/zajigopelarovamamulewulak.pdfIn PDF document text
- http://mama-care.com/UserFiles/file/rejujamilesodip.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=indian+idol+final+contestants+2020PDF link annotation
- https://www.thc.gda.pl/ckfinder/userfiles/files/42092487210.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_off0000cfac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFAC | 10564 bytes |
SHA-256: 2554ff92ec5bc9171ec9e806ab223e31f6747052688afc5ee1dbe403397f3fcf |
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font_01_sfnt_off0000e7ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fffe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFE | 17772 bytes |
SHA-256: b98452af21661e641adb693fd96d5db055e0b94282416f11d2f95c506f34e741 |
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