MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many pointing to disposable hosting and exhibiting link farm characteristics, indicating a malicious intent to redirect users. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely a phishing or trojan delivery mechanism. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to lead users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
Heuristics 5
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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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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://pistant.ru/uplcv?utm_term=how+do+i+make+a+live+wallpaper+with+sound PDF link annotation
- http://phanmemerp.vn/attachment/files/42142698441.pdfIn PDF document text
- http://mail.me.ntou.edu.tw/ckfinder/userfiles/files/20210910_044609.pdfIn PDF document text
- https://pasarantogel2.com/contents/files/regug.pdfIn PDF document text
- http://zerosquareonline.com/file/dokezugiwazaxoposomonoga.pdfIn PDF document text
- http://bulk-supplies.com/userfiles/file/sisoloxalekujexejoleguw.pdfIn PDF document text
- http://loaamtran.vn/files/usersfiles/files/rumoxojawuxiwazu.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/75373965956.pdfIn PDF document text
- https://adrfarysz.pl/userfiles/file/75857162685.pdfIn PDF document text
- http://hoadon-dientu.net/images/files/20741678419.pdfIn PDF document text
- http://automotiveenergy.cz/userfiles/file/98861628166.pdfIn PDF document text
- http://sonsuadogo.org/Images_upload/files/rosotugumej.pdfIn PDF document text
- http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/18517505.pdfIn PDF document text
- http://sinostandards.net/upload/files/77016540697.pdfIn PDF document text
- http://medi-sen.com/files/files/somobewexezapurijo.pdfIn PDF document text
- http://lukoilmarine.com/ckfinder/userfiles/files/8657245056.pdfIn PDF document text
- http://ricettebiagi.it/uploads/assets/file/62258175539.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135aa7e2c9fe---benage.pdfIn PDF document text
- https://nayyaralidada.net/alpha/ckfinder/userfiles/files/32851309799.pdfIn PDF document text
- https://all-stage-meditation.tw/uploads/files/613763217e207.pdfIn PDF document text
- https://nsck-cykelmotion.dk/userfiles/file/44456954111.pdfIn PDF document text
- http://ressourcengarten.de/azubi/userfiles/files/78456807226.pdfIn PDF document text
- https://kanalprofi.at/UserFiles/file/dusulineruwizu.pdfIn PDF document text
- http://gianenricofabro.com/userfiles/files/betareretulosobigivuvupi.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/6a0a5b6306ccc1b1f9a5b26f4ee6a1d2/28191304490.pdfIn PDF document text
- http://maidichike.com/upload/files/gixepi.pdfIn PDF document text
- http://csc-0898.com/userfiles/file/20210912070231_2w7c7e.pdfIn PDF document text
- http://ohdiabo.net/images/ckeditor/files/87167896313.pdfIn PDF document text
- 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_off0000cc9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC9E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e4b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4B0 | 16984 bytes |
SHA-256: ca7a8aab0af66eef96d7c8edf8496c3c7dbef918e5787fe30b50fa803663e033 |
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font_02_sfnt_off000110ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110AC | 10992 bytes |
SHA-256: a880f33934227e1a0855c0d7ce9628c45fd161f7ac61ae265bc7001c82ba5be3 |
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