MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to other PDF files hosted on various domains, suggesting a distribution mechanism for phishing or malware. The presence of multiple compromised CMS upload links further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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 https://vietnaminsight.biz/ckfinder/userfiles/files/11317222772.pdf In PDF document text
- http://polipack.ru/content/file/posel.pdfIn PDF document text
- http://goang-hann.com/uploads/files/202109022248327224.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1613858ea3a347---89662985398.pdfIn PDF document text
- http://jin16888.com/userfiles/file/74467586353.pdfIn PDF document text
- http://ingmontagna.com/userfiles/files/gabijivonopawekukajivusu.pdfIn PDF document text
- https://hohsingfiber.com/ufiles/files/44230212970.pdfIn PDF document text
- http://aftp.bg/userfiles/file/widitezuwanofe.pdfIn PDF document text
- https://kaptenhoki.info/contents/files/51253829846.pdfIn PDF document text
- https://travelone.ae/userfiles/files/99437113389.pdfIn PDF document text
- http://eventclub.pl/userfiles/file/rikomudalikemurewevi.pdfIn PDF document text
- https://posetili.ru/userfiles/file/71694940078.pdfIn PDF document text
- http://begemot-rus.com/uploadfiles/file/2021090801280173499.pdfIn PDF document text
- http://andlupa.com/userfiles/file/58751900604.pdfIn PDF document text
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/b5d2845f0ec8abab5f3a5b35eccf5618/94529490003.pdfIn PDF document text
- https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/7742832919.pdfIn PDF document text
- https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161303d51e34cb---limejuf.pdfIn PDF document text
- https://profitaler.com/UserFiles/file/rugupojujokunigoru.pdfIn PDF document text
- http://esangsok.com/upfile/files/34815082043.pdfIn PDF document text
- http://bladensburg.abwingsmd.com/uploads/files/zevibemukot.pdfIn PDF document text
- https://mountmoriahcamp.com/media/34073991962.pdfIn PDF document text
- http://secoinblock.com/upload/files/71641851161.pdfIn PDF document text
- http://cnhhgj.com/upfiles/userfiles/file/34680188606.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=amazon+prime+mod+apk+2020PDF link annotation
- 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_off0000c691.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC691 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dea8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEA8 | 10616 bytes |
SHA-256: d576cf69b5e1268eb06edb6f7f93cd597bc6a524319139004673f7ec46aa33ae |
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font_02_sfnt_off0000f6e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6E9 | 17964 bytes |
SHA-256: 31b0d7d46c4587552b6c119d865db051dc39b5a0b4a6d2a91f9adf16a97ad188 |
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