MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier and ClamAV also flagged this PDF as malicious. The document body, though heavily obfuscated, suggests a lure related to 'piano sheet pdf', which aligns with the malicious redirector URL. No scripts were extracted, but the primary attack vector appears to be directing users to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 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://dafemum.ru/123?utm_term=everybody%2527+s+changing+piano+sheet+pdf In PDF document text
- https://static.s123-cdn-static.com/uploads/4456686/normal_60069b52d98e3.pdfIn PDF document text
- https://cdn.sqhk.co/sizozizaj/eIhdjeD/break_it_up_book.pdfIn PDF document text
- https://kaxitojuwomig.weebly.com/uploads/1/3/5/3/135302818/8047108.pdfIn PDF document text
- https://sukodijam.weebly.com/uploads/1/3/4/5/134516983/1337251.pdfIn PDF document text
- https://sojabejob.weebly.com/uploads/1/3/4/8/134890412/rufimisoxijegef-senivaliwel.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388048/normal_6017b4073e25e.pdfIn PDF document text
- https://cdn.sqhk.co/vibisidumes/hYygfia/wechat_web_download_for_laptop.pdfIn PDF document text
- https://cdn.sqhk.co/losomilodip/ALjfieN/apple_infinite_loop_campus.pdfIn PDF document text
- https://cdn.sqhk.co/vixukose/aSibiUs/mens_square_earrings_for_sale.pdfIn PDF document text
- https://zazalefofano.weebly.com/uploads/1/3/4/5/134578352/benifodazewuni-kezezutimofiv-kanolekawexa-zopupore.pdfIn PDF document text
- http://rejemezurufoveg.mywebcommunity.org/62290356130.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4477637/normal_6048a879e38b8.pdfIn PDF document text
- https://bijawodit.weebly.com/uploads/1/3/4/8/134883407/3381959.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/kibavutibeved/wuwalilenoreto.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/25cb6fbf-6211-42ee-b6fc-9c4fc93756b4/how_to_replace_stove_knobs.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/793068d1-906e-426b-8b0c-a63b77ee0a28/best_software_to_learn_english_vocabulary.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cb06fff1-4690-4161-a145-48c3f48a6980/37503367520.pdfIn PDF document text
- https://s3.amazonaws.com/tazopaju/what_is_a_very_good_sat_score_2019.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/23ce21a3-99da-45c4-a396-28d8310180de/33592902088.pdfIn PDF document text
- https://s3.amazonaws.com/zibenoroduzuw/con_cao_cao_nhc_thiu_nhi_mp3.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_off0000cb17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB17 | 5676 bytes |
SHA-256: 3b45dd899a507730d0efef971f105116d2652144194487cd67bfd9be05d0987a |
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font_01_sfnt_off0000de79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE79 | 11376 bytes |
SHA-256: 761856e46e1e374555dee66dd4fc581ee015754fdb86d67082162cc8b2ad7ef2 |
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