MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a large number of embedded links, many pointing to disposable hosting services, indicating a link farm designed to redirect users to malicious content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to yafferge.ru, suggesting a phishing or malware distribution attempt. While no scripts were directly extracted, the nature of the embedded links and the ClamAV detection strongly suggest a phishing or malware delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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/123?utm_term=how+do+you+use+a+brother+xr+65+sewing+machine In PDF document text
- https://cdn.sqhk.co/feripamapuv/vih2hhc/group_video_call_teams_free.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470843/normal_600df0376ad91.pdfIn PDF document text
- https://wadasazaba.weebly.com/uploads/1/3/3/9/133999184/4505802.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426676/normal_6018ca777eaa0.pdfIn PDF document text
- https://cdn.sqhk.co/rasepotobami/FhiyYhj/launch_trampoline_park_linden_hours.pdfIn PDF document text
- https://banabujoro.weebly.com/uploads/1/3/0/7/130776007/sufalev-pajum-tazonadidedisoz.pdfIn PDF document text
- http://kojewotezigu.iblogger.org/boomerang_africa_games.pdfIn PDF document text
- https://cdn.sqhk.co/kazakilen/ZheOidV/life_simulator_2019_roblox_obby.pdfIn PDF document text
- http://sberetransfer.online/fiteduzaveshyzs.pdfIn PDF document text
- https://kitomejefu.weebly.com/uploads/1/3/4/1/134108571/mumefu.pdfIn PDF document text
- https://cdn.sqhk.co/raninogozo/hgiegfA/bobibizupisidesoxafijug.pdfIn PDF document text
- https://zibataluguxomi.weebly.com/uploads/1/3/1/3/131382491/dasigebuve-fusawaxifer-zivunirakobuti.pdfIn PDF document text
- http://thefortykuti.com/vodadisikakutazezigiyyae0.pdfIn PDF document text
- http://wimazosuwoxugij.66ghz.com/52624696124.pdfIn PDF document text
- https://cdn.sqhk.co/zoxowowi/id1jxg1/heroes_vs_monsters_money_hack_download.pdfIn PDF document text
- https://cdn.sqhk.co/jesupasuzoku/pGtjgYW/27981940110.pdfIn PDF document text
- https://cdn.sqhk.co/riraxizilob/ciaJrml/xuvoduviriwanolodoxubuti.pdfIn PDF document text
- https://naratejog.weebly.com/uploads/1/3/2/6/132682615/14c7f8fc6dcbbbc.pdfIn PDF document text
- https://cdn.sqhk.co/tizuvuwo/jDGhbUK/wetufivele.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418746/normal_602fdbb78e8eb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://xokifenutotumu.epizy.com/chemical_bonding_worksheet_section_1.pdfIn PDF document text
- http://kotidaw.epizy.com/7173465128.pdfIn PDF document text
- http://zovebosovu.rf.gd/sheet_size_chart_us.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_off00011898.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11898 | 5964 bytes |
SHA-256: 3b651c2b4a4bc87529297618840cddf40ba29df6344137d5c211daab85c4f30b |
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font_01_sfnt_off00012cd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CD8 | 11032 bytes |
SHA-256: a01ddb6e08c7563f766e3ce4c4a4715fd5920a81e7de4266a8b7ad53477a908b |
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