MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm. The embedded URLs, such as 'https://crewmak.ru/uplcv?utm_term=wirelessly+connect+phone+to+pc', are likely used to redirect users to phishing sites or download further malicious content. The presence of numerous links and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://crewmak.ru/uplcv?utm_term=wirelessly+connect+phone+to+pc PDF link annotation
- http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613e8651a355e---xinisetivemuf.pdfIn PDF document text
- http://anabakorea.jp/userfiles/file/minobewafika.pdfIn PDF document text
- https://norservis.cz/files/files/17445434125.pdfIn PDF document text
- http://mingmitrcoffee.com/user_img/files/jizakobexaxanuzizubobuw.pdfIn PDF document text
- http://szkolaprywatnaleszno.pl/userfiles/file/dokovosotulegewir.pdfIn PDF document text
- http://assytekservizi.com/userfiles/files/96212224677.pdfIn PDF document text
- http://packamate.com/userfiles/72975428641.pdfIn PDF document text
- http://pazarziraat.com/userfiles/file/70017934153.pdfIn PDF document text
- https://festival-bg.com/media/ckuploads/files/webamogorafalepukon.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/8eb75b81aa75b6df530ea59d4d751d72/kefikigurafizikan.pdfIn PDF document text
- http://eamenfaraz.com/cache/fck_files/file/3632966021.pdfIn PDF document text
- http://risorsaterra.it/userfiles/files/42103864950.pdfIn PDF document text
- https://floridainvestment.cz/files/file/xelubizek.pdfIn PDF document text
- https://calendarsunrooms.com/userfiles/files/15747595250.pdfIn PDF document text
- http://dreamsurgeryen.net/ckupload/files/76335196014.pdfIn PDF document text
- http://www.mostenpo.jp/userfiles/files/59094120463.pdfIn PDF document text
- http://tns-china.cn/editor_upload_image/file/70309677253.pdfIn PDF document text
- https://fainitelecommunication.com/public/editorfiles/file/63014476960.pdfIn PDF document text
- http://albino-pitti.com/pub_img/file/47577648782.pdfIn PDF document text
- http://mtegl.wsystem.sk/userfiles/files/18060735736.pdfIn PDF document text
- http://fpempresa.cen.es/userfiles/files/domemasokuxikag.pdfIn PDF document text
- https://cambodiaangkorhomestay.com/userfiles/file/37324319031.pdfIn PDF document text
- http://1night2day.com/ckupload/files/gobakonara.pdfIn PDF document text
- http://sdv.sk/userfiles/articles/file/zeliropeti.pdfIn PDF document text
- https://pakistanchristiancongress.org/userfiles/file/tasurubis.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_off0000f0a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0A4 | 10416 bytes |
SHA-256: 50eaab3c4d20f842b7b8064ae443762dccd00f9a5c4f76ba35645a654cbcbcce |
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font_01_sfnt_off00010835.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10835 | 18756 bytes |
SHA-256: 5d31c828db5f1307011039b1e158e62133da15f44736f3add5afb975d8a69c34 |
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font_02_sfnt_off00013704.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13704 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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