MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of numerous embedded URLs, many pointing to disposable domains and configured as link farms, strongly suggests a phishing or malware distribution campaign. The document body is heavily obfuscated, but the overall structure and heuristic firings point towards a malicious PDF designed to redirect users to external, potentially harmful, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9933
Heuristics 5
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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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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://cructi.ru/uplcv?utm_term=pubg+mobile+ios+vs+android PDF link annotation
- http://ptaki.info/imgekoprojekty/files/torofetizobiponumip.pdfIn PDF document text
- http://dopuskvsro.ru/UserFiles/jolewovupiwot.pdfIn PDF document text
- http://fthyhs.com/resource/docContentImg/file/2021-09-21/866d99f2b3204355d9499f94b50ed717.pdfIn PDF document text
- http://gs-metals.com/filespath/files/20210911093755.pdfIn PDF document text
- http://casaledellasignora.it/userfiles/files/bufelokemebawi.pdfIn PDF document text
- http://shophouse.info/images/files/25490970956.pdfIn PDF document text
- http://freeski.hu/freeski/file/40871748248.pdfIn PDF document text
- https://saatyapi.com/upload/ckfinder/files/kumesovop.pdfIn PDF document text
- http://daechienglishpark.com/ckfinder/userfiles/files/kusew.pdfIn PDF document text
- https://arerp.kr/data/file///38467005578.pdfIn PDF document text
- http://sibmaxi.ru/userfiles/file/97876471361.pdfIn PDF document text
- https://study-abroad-travel.com/ckfinder/userfiles/file/53479297204.pdfIn PDF document text
- https://habrit.tw/ckfinder/userfiles/files/36443881961.pdfIn PDF document text
- http://aisne.proximeo.com/ckfinder/userfiles/files/43319387526.pdfIn PDF document text
- https://sergeca.com.ve/ckfinder/userfiles/files/79804670161.pdfIn PDF document text
- http://4reality.cz/userfiles/files/83604860563.pdfIn PDF document text
- http://sake-tori.com/images/library/File/sudutorarugube.pdfIn PDF document text
- http://www.bargiel.com.pl/ckfinder/userfiles/files/6198248555.pdfIn PDF document text
- http://nordicwalkingturak.hu/_user/file/libidibabiradurevowo.pdfIn PDF document text
- http://cukorbetegshop.hu/files/gazuravi.pdfIn PDF document text
- http://worldofpacifiers.com/editor_uploads/system/files/99579788525.pdfIn PDF document text
- https://gulamanis.com/contents/files/36623555966.pdfIn PDF document text
- https://motty-etai-sharon.com/files/files/lojolojevexosenedupukep.pdfIn PDF document text
- https://vico-domrep.com/ckfinder/userfiles/files/kosevimagodivike.pdfIn PDF document text
- http://coachhouse.info/assets/file/ramuzomibawibemoziribamag.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b521.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB521 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD38 | 10800 bytes |
SHA-256: fa7c1f382f2aa8ea8318331852d0b99149841698bcfddaaf05003170b6c2c8a8 |
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font_02_sfnt_off0000e5d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5D9 | 21184 bytes |
SHA-256: 8610ec81b9ef27630bdf3182d104c30d3b7111a85b56573b9547b6b50c8a4ea5 |
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font_03_sfnt_off00011ca9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CA9 | 16188 bytes |
SHA-256: 800554d3d6320da9c8ab21a3ad3d270f40e7a92360d7538c059d647d952d1d34 |
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