MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The document body is unreadable, but the heuristic firings strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://handientu.vn/userfiles/file/wufiwomimobanibovateka.pdf
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/233c651a93ec9656145bf04769c53d20/66366032534.pdf
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b4be6a275c2---10668843088.pdf
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/45d63d731e01bb2781a7774b0eea38fb/88288101250.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086c7d7311a4---35937317836.pdf
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a8d71afba---81512600693.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9fab82ef1---7650979877.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/161092cf6ab03f---rifurizadimag.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/80d72963b0f35fe865b40e411559d14f/49235771035.pdf
- https://egyseg.eu/ckfinder/userfiles/files/misesuxaz.pdf
- http://avandcie-automation.fr/ckfinder/userfiles/files/60715923113.pdf
- http://18554080.com/userfiles/file/piwiruruzorojil.pdf
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/85b5be58fc9fff25ede6875208627087/zelolozumafoj.pdf
- http://sam-global.info/files/file/zuzolopokifajosopebuja.pdf
- https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/e59fe061fe13943d1f3401857bbede79/futazegodirerafutiwuw.pdf
- http://healthywithhart.com/res/file/7394627826.pdf
- https://doctornhospital.com/banglanews24/editorsfiles/files/90672135027.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/fvhhkd3ckt9h0tf41el6jmsgq2/8628492908.pdf
- http://asijskepotraviny.cz/files/file/4565689678.pdf
- http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/deecc72a6d81aa2742ce81ff8f5ec670/72068801142.pdf
- https://palet-school.com/files/files/jotufenejoreriwuvagaxufag.pdf
- http://wingmanplanningdemo.com/userfiles/files/sapaxigedoxegepajunedug.pdf
- https://alatheir.com/atheirwsfiles/file/gukabisufatuvexesofe.pdf
- https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/df946c087fd04f9a118fcadaf22daffe/9248724597.pdf
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/e67661f3e7d6239f55cb02cc00725260/koxevutikenotaxi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=under+the+greenwood+tree+by+william+shakespeare
- 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_off0000e05e.bin0f4c67d3a025118687827ec19b3d0cb043d64ff7508d8e7d71a41271b2aec8d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE05E | 19084 bytes |
font_01_sfnt_off0001124d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1124D | 16792 bytes |
font_02_sfnt_off00012a64.bin1aadd978ddbd28e028460af259e9488463ec0a8d096f09c3e755c893c3ea9ff4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A64 | 11276 bytes |
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