MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many of which are hosted on disposable domains, indicating a link farm or phishing attempt. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' specifically flags a URL leading to known malicious redirector infrastructure. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF, likely used as a lure for users to click on malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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=intro+to+computer+study+guide In PDF document text
- https://cdn-cms.f-static.net/uploads/4374364/normal_5fe959bb1245b.pdfIn PDF document text
- https://cdn.sqhk.co/tedalome/hcHDtsa/xufusadaxoweruzoxamal.pdfIn PDF document text
- https://gafalevomunu.weebly.com/uploads/1/3/4/2/134235362/6912422.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403937/normal_603462105ecc5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4392463/normal_5ff7dbd1e64e3.pdfIn PDF document text
- https://cdn.sqhk.co/pesegozod/UhioZgf/heart_gold_digital_download.pdfIn PDF document text
- https://torimavilok.weebly.com/uploads/1/3/5/9/135984964/ac5be4f025b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409256/normal_5fd6812b7cc7a.pdfIn PDF document text
- https://fejejupusojovif.weebly.com/uploads/1/3/1/4/131483068/c8d8dedeaf76.pdfIn PDF document text
- https://zekawumili.weebly.com/uploads/1/3/4/4/134403966/tarirapav.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387562/normal_5ff5466e7a61c.pdfIn PDF document text
- https://cdn.sqhk.co/gabunufu/hjhfiaH/23962033599.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459921/normal_6019b356731ae.pdfIn PDF document text
- https://cdn.sqhk.co/lomokubaf/Zgikrgc/gba._emu_apk_1._5._34.pdfIn PDF document text
- https://cdn.sqhk.co/ragekasa/yZgg1Md/car_x_drift_racing_2_mod_apk_download.pdfIn PDF document text
- https://cdn.sqhk.co/vuvupewog/wibSjee/mountain_bike_shops_around_me.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://xebowuruno.epizy.com/kukafivinifakarutafukebub.pdfIn PDF document text
- http://gigidokolud.rf.gd/english_bangla_dictionary_apk_uptodown.pdfIn PDF document text
- http://xitunixanamo.epizy.com/mezoles.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
- 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_off00013167.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13167 | 5192 bytes |
SHA-256: 3f7aa821b7c7607126cd5d41b33be91b04c0dd78a5ecf34605650ea1c878b45d |
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font_01_sfnt_off000142fe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142FE | 3508 bytes |
SHA-256: c9c1075aa37ac8d476268b24e51156a047bddecdbda7b766632e612e80b26d9e |
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font_02_sfnt_off000150c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x150C9 | 10948 bytes |
SHA-256: 949fb7e064badff3ca2dcae1b008fcf425adb3cfe8cfe166a1f1e9bc4707e374 |
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font_03_sfnt_off00017666.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17666 | 16784 bytes |
SHA-256: 994474ddc0050ca00ccf8518c6fb3607c0efe82919c6775c37acb4339dcc52bc |
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