MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm with numerous embedded URLs pointing to potentially malicious content. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically flags the document for containing many links on disposable hosting, suggesting a phishing or malware distribution attempt. While no scripts were directly extracted, the PDF structure and embedded links strongly indicate an intent to redirect users to external, untrusted sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
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://nomylo.ru/uplcv?utm_term=free+fire+game+download+app PDF link annotation
- http://xinyaoqiye.com/upload_fck/file/2021-9-21/20210921042233587142.pdfIn PDF document text
- http://gulfcoastlist.com/userfiles/file/5447610796.pdfIn PDF document text
- http://flirtproducties.nl/ckfinder/userfiles/files/23289114704.pdfIn PDF document text
- https://minhvuongthuphap.com/upload/ck/files/50948501474.pdfIn PDF document text
- http://razaviota.ir/basefile/razaviotair/files/buluja.pdfIn PDF document text
- http://transporteslaplata.com/imagenes_web/file/15307964194.pdfIn PDF document text
- https://receptabc.hu/images_banner/files/nekasirenuwuwij.pdfIn PDF document text
- http://cisseo.net/userfiles/files/lanomobexor.pdfIn PDF document text
- http://rooptex.com/uploads/sibetutepoleguzofijewaji.pdfIn PDF document text
- http://wizclub.net/upload/userfiles/file/13067155037.pdfIn PDF document text
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/xuxusopekipas.pdfIn PDF document text
- http://sz-nuoyi.com/Upload/file/2021090800040171333.pdfIn PDF document text
- http://lemma-studio.pl/userfiles/file/loguguwuxowijaluleber.pdfIn PDF document text
- http://nyett.hk/uploads/news/files/94361467153.pdfIn PDF document text
- http://fotofolliasanlazzaro.it/userfiles/files/83816508803.pdfIn PDF document text
- http://olympusflights.com/files/files/49742036196.pdfIn PDF document text
- http://2446665a.ru/ckfinder/userfiles/files/31274475739.pdfIn PDF document text
- http://magic-mugs-factory.com/uploadfile/files/90102358040.pdfIn PDF document text
- http://4els.ru/uploads/images/files/29879069034.pdfIn PDF document text
- https://mkserwis.pl/userfiles/file/ketekupamefomapajotov.pdfIn PDF document text
- http://gibisch.org/files/files/xokizeronos.pdfIn PDF document text
- https://mai-avto.ru/upload_files/file/91756076548.pdfIn PDF document text
- https://niboparis.com/upload/fckeditor/files/13410558101.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16148de4c62195---gulasibegusogatixuwevemar.pdfIn PDF document text
- http://abogadosaguilar.com/ckfinder/userfiles/files/29194340957.pdfIn PDF document text
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/e31f7741fba38554810bd48f6da264f4/38276226008.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_off0000b16b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB16B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c982.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC982 | 10640 bytes |
SHA-256: c637741f449e53779b2581e54014a568728471b49dbd48c943f95b4e5f094c7d |
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font_02_sfnt_off0000e192.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE192 | 15064 bytes |
SHA-256: 5c8289b98b7998259e8797824aea1f9b65abf13c51bf8d4051c62d9c143ba4be |
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