MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised or disposable hosting sites. The presence of numerous external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://archism.ru/uplcv?utm_term=android+studio+music+app PDF link annotation
- http://youngshiny.com/userfiles/file/1630591760.pdfIn PDF document text
- http://kool-house.com/upload/editor/file/54975476851.pdfIn PDF document text
- http://teleserviciomalaga.com/ckfinder/userfiles/files/59521952357.pdfIn PDF document text
- http://rapabzenec.cz/obrazky/files/40461002203.pdfIn PDF document text
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/63778c9b5cb3c7dc7ffc7a6e7de4752d/91692117634.pdfIn PDF document text
- https://watertorens.nl/userfiles/file/femekagona.pdfIn PDF document text
- https://chief-moving.com/editor_upload/file/81476463273.pdfIn PDF document text
- https://asoriofrio.org/ckfinder/userfiles/files/bolugixudedak.pdfIn PDF document text
- https://kuni.ro/app/webroot/files/userfiles/files/xigofililafem.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16147fc75a79ce---46155921767.pdfIn PDF document text
- https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/21151231567.pdfIn PDF document text
- http://astprom.ru/sites/default/files/file/xuwigetawabavugiro.pdfIn PDF document text
- http://peneleos.pl/userfiles/file/73997322379.pdfIn PDF document text
- http://classicalgardenfountains.com/uplds/file/kovesafawepili.pdfIn PDF document text
- http://granitemountainranch.net/userimages/4930984721.pdfIn PDF document text
- http://xindeshiye.com/uploadfile/file///2021092315014333.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16141d02de4768---binukodewuj.pdfIn PDF document text
- http://rainhouse.kr/data/editor/file/10376188126143d0afb4b6f.pdfIn PDF document text
- http://anais.terminarz.online/kosmetyczka/krakow/files/60576059377.pdfIn PDF document text
- https://ahha.az/userfiles/file/48806041862.pdfIn PDF document text
- http://qapoll.com/2015/vat/upload/files/5106088004.pdfIn PDF document text
- http://tutaylamhet.com/storage/ckfinder/files/nizudixofezabiritoso.pdfIn PDF document text
- http://eviljoy.com/UserFiles/File/rodixarofudagepekasize.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_off0000b0b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0B8 | 10576 bytes |
SHA-256: cbdf4627eee8829637ba199d4c9b1880112e4c96043fe3689aed083308c5b6d1 |
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font_01_sfnt_off0000c8e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8E1 | 15484 bytes |
SHA-256: 1504a95af97f04f8fcedc2b5c115c4036611ed13420ba2bb8eff000978692b17 |
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font_02_sfnt_off0000efd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFD5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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