MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector and a link farm. One of the primary URLs, 'https://yafferge.ru/wix?keyword=unblocked+basketball+jam', is flagged as malicious. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. The presence of multiple links on disposable hosting further supports a malicious intent, likely to lure users to phishing sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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://yafferge.ru/wix?keyword=unblocked+basketball+jam In PDF document text
- http://waniwukudalutef.22web.org/96519305573.pdfIn PDF document text
- http://rowowesofazov.medianewsonline.com/fearless_youtube_song_1_hour.pdfIn PDF document text
- http://wirobigi.medianewsonline.com/17631956395.pdfIn PDF document text
- https://kejarokelevu.weebly.com/uploads/1/3/5/2/135297316/nadofuwisaga.pdfIn PDF document text
- https://meverelalopabij.weebly.com/uploads/1/3/4/1/134108836/b5d59ef93.pdfIn PDF document text
- https://vetebifarex.weebly.com/uploads/1/3/4/0/134016991/megadevabuvaxu.pdfIn PDF document text
- https://mewejubakokexal.weebly.com/uploads/1/3/2/6/132681976/4783928.pdfIn PDF document text
- https://tojipojewusaw.weebly.com/uploads/1/3/0/8/130814735/tepurelixamadi.pdfIn PDF document text
- http://kazimibi.getenjoyment.net/stihl_fs_56_rc_attachments.pdfIn PDF document text
- http://kovuzaxaf.medianewsonline.com/super_mario_sunshine_walkthrough_part_2.pdfIn PDF document text
- http://nosilekexiwot.mywebcommunity.org/wu_tang_clan_song_cream_lyrics.pdfIn PDF document text
- http://wavikedinufefe.iblogger.org/pisazakere.pdfIn PDF document text
- https://zuduloto.weebly.com/uploads/1/3/4/6/134623707/nofomelasaxu-panakip-dafupemagilod-potipudijen.pdfIn PDF document text
- http://xapepinozex.22web.org/calcium_oxalate_formation_reaction.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zawemitop.epizy.com/lixilokimidibagutogigatom.pdfIn PDF document text
- https://s3.amazonaws.com/zuniverijesud/beetlejuice_say_my_name_sheet_music.pdfIn PDF document text
- https://s3.amazonaws.com/wivunonovef/57774193888.pdfIn PDF document text
- http://zitadufafasid.onlinewebshop.net/95878946745.pdfIn PDF document text
- https://s3.amazonaws.com/nutanigonu/60352934251.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e2f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2F8 | 5260 bytes |
SHA-256: 24cfc2a40534a2d65781d9c5942e65020539951bc6769df6a776667e8fd341e7 |
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font_01_sfnt_off0000f4d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4D0 | 10184 bytes |
SHA-256: c52b81526db2ce90f4d1e3e2835fb2076a5b16d938b3b9fd0ae62bef37c1db9b |
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