MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with many embedded URLs pointing to potentially compromised or disposable domains. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests the document is designed to lure users to external sites, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://beta.nhatthiengroup.com/files/uploaded/files/golirinixo.pdf In PDF document text
- http://cdkkck.com/uploadfile/file/20210911213223.pdfIn PDF document text
- https://thingstodobahrain.net/ckfinder/userfiles/files/37684132488.pdfIn PDF document text
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/dit5vmsipsbf8i9c24n3uiqe1e/simakofoxedinuferijawijo.pdfIn PDF document text
- http://physio-praxismitte.de/userfiles/tamiwalajupuxe.pdfIn PDF document text
- http://fkm-lux.by/var/upload/file/jisapinu.pdfIn PDF document text
- https://dom4m.by/userfiles/files/renesefufejupakas.pdfIn PDF document text
- http://kamerton.nl/clientfiles/10691267744.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/3ef27a93e029befbca92b0b3d16cc91f/xukuranelolovuforonalu.pdfIn PDF document text
- http://a-pluset.com/userfiles/32914249853.pdfIn PDF document text
- http://kalikraft.com/images/file/kupafugelodusokiwe.pdfIn PDF document text
- https://portofcrotone.com/dati/upload/file/jijuxejudekokolem.pdfIn PDF document text
- https://tarzminder.com/resimler/files/xenosobe.pdfIn PDF document text
- http://inspiredindianfoundation.org/uploads/nojogejigovununu.pdfIn PDF document text
- https://francoisdaulte.com/ckfinder/userfiles/files/tolif.pdfIn PDF document text
- http://boekenwinkelindex.nl/images/uploads/sasizadavaberoli.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/f68b02ecd57834ef725d0dfa83be2ca8/34072616561.pdfIn PDF document text
- http://ediliziaunoaventi.com/userfiles/files/23417485291.pdfIn PDF document text
- https://livstyle.ro/home/livstyle/public_html/uploads/files/toporadosir.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/161433ccb429a3---58626899700.pdfIn PDF document text
- http://rld-carbon.ru/file/jurufexegosibed.pdfIn PDF document text
- http://careersourcechipola.com/files/public/65412501408.pdfIn PDF document text
- http://refinerlink.com/userfiles/file/58019706092.pdfIn PDF document text
- http://fishtech.org/uploads/userfiles/file/file/lojif.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=gcam+apk+s7+edgePDF 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_off0000d83c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD83C | 19088 bytes |
SHA-256: b1c3866f8cc05a4d1a8532ffda5e78ded6d354debdef0685665e6597368206c5 |
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font_01_sfnt_off00010a67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A67 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001227e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1227E | 10476 bytes |
SHA-256: 33ed8eecdd9b91188ff678c9cad461fac1d0ab69008b8e44cb1020ce6aef9794 |
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