MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/123?utm_term=skyvpn+pro+apk'. Additionally, it exhibits a PDF link farm with numerous external links, suggesting a phishing or malware distribution attempt. The ML classifier strongly supports maliciousness, and ClamAV also detected it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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 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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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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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://traffmen.ru/123?utm_term=skyvpn+pro+apk In PDF document text
- https://reredutubonuki.weebly.com/uploads/1/3/0/7/130775370/zanixuserefesafoz.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/086d962a-767e-4741-9710-882894c23270/takofumepuroposevit.pdfIn PDF document text
- https://s3.amazonaws.com/nisoxow/ucsf_chimera_software_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/068b9fb5-119e-423f-bd08-9bcf88ea2d85/mulowena.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/08e0d98b-1f2c-4c65-9c6d-b0119cecfe01/zogow.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b2f46576-8497-4fce-a8b7-f5b70d7bf8e5/eyes_of_beauty_skyrim_se.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a0ed2175-957c-4899-b30a-fcd233ba936d/5939025317.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/530a67be-05c8-4df3-9590-15f819e20dc5/spirit2_apk_xda.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d62ea788-4358-4d06-b5d3-bb8c32d48668/blank_calendar_2019_-_2020_printable_monthly.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e52d51a5-6ec9-43e5-8b75-0ebcd5d98b47/hd_tube_video_downloader_apk.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc6a0bbf7cf8c754052888c/t/5fd14bc8d279db5018a0db41/1607551945197/line_color_game_3d.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5ff45251-79ca-4092-b435-2a7acaeea6ff/51248894539.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1238998b-8cff-4885-b0c8-54728f2c6007/hill_climb_racing_apk_unlimited_money.pdfIn PDF document text
- https://s3.amazonaws.com/fomaralunex/77093925586.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9057967c-a4fb-429a-a301-5ea6f2b0482a/horizontal_translation_of_a_function.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d0df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0DF | 4932 bytes |
SHA-256: 38cde220e89ab4d1c6c09ae6d622a1b82b6cfffd763994decf3b879ea9bd13d5 |
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font_01_sfnt_off0000e1c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1C7 | 10844 bytes |
SHA-256: c1584aab9152db942d0829088ce7b8be56e43889d8e10d7a6ca408e8229195cb |
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font_02_sfnt_off000106f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106F4 | 16248 bytes |
SHA-256: fbeccb1482ee56052ed809ec6cb7dfbc577d51b9212e43fffabc93e29761b6bf |
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