MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF is identified as malicious by ClamAV and ML classifiers, exhibiting characteristics of a phishing lure. Heuristics indicate it's an image-only document with a click-outward action, typical for directing users to malicious URLs. The presence of numerous distinct, disposable hostnames in the extracted URLs further supports a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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=online+unpaired+t+test PDF link annotation
- http://uleshuzatshop.hu/files/file/7336854333.pdfIn PDF document text
- http://nhasachthunam.com/upload/files/91056178309.pdfIn PDF document text
- https://enerjimakine.com/tsrm1/img/userfiles/file/xelezaxanerapad.pdfIn PDF document text
- https://keluargamimpi2.com/contents/files/saselafagaji.pdfIn PDF document text
- http://domadoma.cz/userfiles/file/56978171536.pdfIn PDF document text
- http://anaminfo.com/attachfile/file/22736536032.pdfIn PDF document text
- https://ms01bet.net/contents/files/74269462194.pdfIn PDF document text
- https://shriayurvednagpur.org/public/ckfinder/userfiles/files/96394762874.pdfIn PDF document text
- http://baocaosuhoatoc.com/luutru/files/84701045313.pdfIn PDF document text
- http://aaaexpressac.com/userfiles/file/midan.pdfIn PDF document text
- http://www.lasallelille.com/admin/ckfinder/userfiles/files/95269835561.pdfIn PDF document text
- http://tko.wavedev.net/img/files/files/1672392769.pdfIn PDF document text
- https://dubigroup.com/admin/fckeditor/editor/filemanager/connectors/upload/file/24236654202.pdfIn PDF document text
- https://kimcert.net/E/file/janegadevunojunapazubum.pdfIn PDF document text
- https://rkdestate.com/userfiles/file/32080107463.pdfIn PDF document text
- http://cplust.com/upload/serback/files/20210918141646.pdfIn PDF document text
- http://sunrui-ti.com/d/files/37038628271.pdfIn PDF document text
- http://longarmquiltingacadamy.com/fckeditor/userfiles/file/2067100029.pdfIn PDF document text
- https://homecareangels.ca/files/files/files/kifijiredopavakadotok.pdfIn PDF document text
- https://firsatoyun.com/calisma2/files/uploads/87483334269.pdfIn PDF document text
- http://olivetheater.com/userData/board/file/83974396990.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_off0000adef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADEF | 14204 bytes |
SHA-256: edfddd5c4f54a9977670ad2c4bc18a34dba88d55a721f1d0e107ef3acd757cb8 |
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font_01_sfnt_off0000d10a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD10A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e921.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE921 | 10392 bytes |
SHA-256: 483b9e33f73466894ff08adddc1e5ed8d689031e57dfb886fd8fc4dd690d9cfb |
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