MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Several heuristics point to the document acting as a link farm, directing users to potentially compromised websites or IP addresses, such as http://140.121.180.103/ckfinder/userfiles/files/71453341923.pdf. The presence of multiple external URIs and a link farm structure suggests an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://140.121.180.103/ckfinder/userfiles/files/71453341923.pdf PDF link annotation
- https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/161391cfcc41c3---58998706265.pdfIn PDF document text
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/e32f0o36k9lfd0u3ed7guh3fn8/9687831348.pdfIn PDF document text
- http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/goxunow.pdfIn PDF document text
- http://chingyi.tw/userfiles/files/75053732522.pdfIn PDF document text
- http://budgettranslation.hu/sites/default/files/file/23495650343.pdfIn PDF document text
- https://eko-briketes.lv/userfiles/files/34995326472.pdfIn PDF document text
- http://arrhythmiaclinic.com/userfiles/file/20210909064922.pdfIn PDF document text
- https://vresponse.net/userfiles/file/10333315527.pdfIn PDF document text
- http://cascinamana.it/userfiles/file/60093416875.pdfIn PDF document text
- http://bagliodeimille.it/userfiles/files/pazarogukilotareduwu.pdfIn PDF document text
- http://lightningriskassessment.com/ci/userfiles/files/bulutuvuzata.pdfIn PDF document text
- http://fortwashington.abwingsmd.com/uploads/files/mapokuxuv.pdfIn PDF document text
- https://jss-moms.si/upload/File/30084928279.pdfIn PDF document text
- https://hitourkorea.com/FileData/ckfinder/files/20210905_BE9FE4004D03CF89.pdfIn PDF document text
- https://h16hr15k-h19hr37urn.com/contents/files/25880205789.pdfIn PDF document text
- http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/89132841709.pdfIn PDF document text
- https://aynadakikemalizm.com/resimler/files/86860045294.pdfIn PDF document text
- http://trust-law-firm.com/userfiles/file/20210913152144_1662619621.pdfIn PDF document text
- http://holzbau-napetschnig.at/12644710790.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134adda0d277---25975564406.pdfIn PDF document text
- http://landpas.pl/upload/file/gurirarosevorizebefokuzox.pdfIn PDF document text
- http://korvet-sp.ru/userfiles/file/36962071752.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=wattpad+old+version+downloadPDF 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_off0000d492.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD492 | 17524 bytes |
SHA-256: 18ee2e135399bd30c85787e77cb169a9772fb7a0db71b61b350c8653611159bb |
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font_01_sfnt_off000101c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101C0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000119d7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119D7 | 10532 bytes |
SHA-256: 85273d4da923df2d8bb935caf6e69f3a2bc98c53a9f4ebce21c054cbf3bd910d |
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