MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous embedded URLs pointing to external PDF files. Many of these URLs are hosted on domains that appear to be compromised or disposable, suggesting a tactic to distribute malicious content or engage in SEO poisoning.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 https://vaynhanh365.net/contents/files/46911380902.pdf
- http://china-baby-clothes.com/d/files/nonulijimodalo.pdf
- http://dealershop.es/userfiles/file/23863552319.pdf
- http://chpcentre.com/files/file/5506379984.pdf
- http://noithatdangcap.vn/app/webroot/uploads/files/wokosojegavago.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/pgcp896jd168c6oo5k84jabhf0/fozixipagadoju.pdf
- http://biomehl.com/images/content/files/5662950483.pdf
- https://farmaciasacoor.com/site/upload/file/68212311713.pdf
- http://asfalon.com/__files/file/bojizabapikusi.pdf
- http://www.findvoters.com/userfiles/file/84331964011.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/bbdf4f8133be76d6a6ac2170d9111df8/72198984171.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/d2bg49ctt2gv2pq2dlpkud7510/biwajanigi.pdf
- http://bibliotekaludwin.pl/img/upload/files/97247447750.pdf
- http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/66646716966.pdf
- http://maketmaster.ru/admin/ckfinder/userfiles/files/reramexufukanubufefin.pdf
- http://vin-baietii.ro/ckfinder/userfiles/files/9256588200.pdf
- http://kor-ra.ru/UserFiles/file/zidufuwetusudiz.pdf
- https://futurefacesmiami.com/uploads/file/24991314809.pdf
- http://abwrichmond.com/uploads/files/76861393012.pdf
- http://dalaichau.com/files/nesemoxilagaj.pdf
- http://sonsuadogo.org/Images_upload/files/50958437998.pdf
- https://atavio.ru/files/file/kenujeke.pdf
- http://rpsbchamber.org/editorData/file/10837177396.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/161380d520b992---pipefudulesewosexafe.pdf
- http://klpa.net/userData/board/file/45592919483.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/pgc25dtvucm4ea4qr5c1sonrkk/xofomosoxezatiwizuba.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=oceanhorn+apk+full
- 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_off0000e7f0.bin1c13afb4589ceec5f44695f866793b306c3beaabcf1901504256e4cfff5fa864 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7F0 | 19444 bytes |
font_01_sfnt_off00011a52.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A52 | 16792 bytes |
font_02_sfnt_off00013269.binc6f876f88032c89c95c6ea90410db7b3e224188dd06f0705d1b9e0e30ff20622 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13269 | 10436 bytes |
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