MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. The embedded URL and the document's structure suggest it is part of a link farm designed to trick users into downloading malware, masquerading as legitimate software updates. The presence of multiple disposable hosting links further supports this malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://jottigo.ru/123?utm_term=amd+radeon+drivers+ubuntu PDF link annotation
- https://cdn-cms.f-static.net/uploads/4391326/normal_60227457da137.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446765/normal_5fe3323ba6302.pdfIn PDF document text
- https://cdn.sqhk.co/bomumuxa/hiehdSz/84053913279.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453764/normal_602e1b0b1c3fa.pdfIn PDF document text
- https://cdn.sqhk.co/siripeka/iia3jaD/purple_care_bear_flower_name.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4497372/normal_5fe4f3032aa26.pdfIn PDF document text
- https://cdn.sqhk.co/betewulo/igjfXih/tizudowerib.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4474720/normal_5fe553501ec15.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424933/normal_60544aff65424.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492573/normal_6019ae0a2172e.pdfIn PDF document text
- https://cdn.sqhk.co/jumupebuvi/f9u4hcU/jufuxesadupu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://e5720c39-3c1c-4a52-9be9-509675281b5a.filesusr.com/ugd/0010c8_d5c4875118d04c14bc73cbda7e466f1a.pdf?index=trueIn PDF document text
- https://97d49ff2-d914-4ae4-8ac8-5e5cf5f77cad.filesusr.com/ugd/6350c7_75425ecb374b4c75ae9f9dd3aa52e2be.pdf?index=trueIn PDF document text
- https://c5c27394-2042-4749-9b39-d1c24dcbd9f0.filesusr.com/ugd/e9b987_19e0eb797cff4dffa83bd985e2cbf8b7.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/b490179b-9214-49a8-9a11-b41f3012aeb7/solitefasiwitinobimide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/75f63644-a68b-4fc8-b710-d6a98992a043/tibifibumudokazobuniz.pdfIn PDF document text
- https://a22c3535-4c29-4f26-bf6b-1e631d3648e5.filesusr.com/ugd/28986c_4192c902aaa1452e99ac35749a73e4f4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4056ed60-8eb5-44ff-b41f-9a7a3229f3f8/database_management_system_project_examples.pdfIn PDF document text
- https://5b949be5-44ef-49af-96c7-0ebaa8fe632e.filesusr.com/ugd/3402b1_23d876d158184f48b80317caab539852.pdf?index=trueIn PDF document text
- https://4590046d-f0a9-4171-b8a0-56ff8c1fe63c.filesusr.com/ugd/0bfb20_a12a0ac61e254574903c7a24dd2869b9.pdf?index=trueIn 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_off0000ecd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECD3 | 5128 bytes |
SHA-256: 3e4a5027e46567b2ecb583c3defcf58cf3a8d829fa20ffe18ad85c1b33e0d67d |
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font_01_sfnt_off0000fe2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE2B | 11344 bytes |
SHA-256: 1f9e8233926735346a96724a7937aca3a672686b9e797f06a0675f5396bd8a1d |
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