MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, https://traffmen.ru/aws?utm_term=bluestacks+free++for+windows+10+filehippo, is likely used to direct users to a malicious site. The ML classifier also strongly flagged this PDF as malicious, and ClamAV detected it as Pdf.Phishing.Trojan. The document body, though heavily obfuscated, contains strings related to software downloads, suggesting a lure for users seeking specific applications.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINKPDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
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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/aws?utm_term=bluestacks+free++for+windows+10+filehippo In PDF document text
- https://cdn-cms.f-static.net/uploads/4383916/normal_5fd7b2e80a942.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366312/normal_5f8e9a7438de4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470523/normal_5fdf4979c63bf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425768/normal_5fbf5807ea021.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454990/normal_5fa65db53ad5e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417526/normal_5f9cc0d17fa7d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469143/normal_5fa5ee65c0596.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/dudurat/57275727102.pdfIn PDF document text
- https://s3.amazonaws.com/tugabijenovili/cape_breton_highlands_national_park_guided_hikes.pdfIn PDF document text
- https://s3.amazonaws.com/didowugorokirug/55087661466.pdfIn PDF document text
- https://s3.amazonaws.com/wanalovum/64507284734.pdfIn PDF document text
- https://s3.amazonaws.com/bitajemisajoz/acronimos_en_ingles_de_informatica.pdfIn PDF document text
- https://s3.amazonaws.com/sinamozagemoger/safunalugosoxijuzupexir.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/536d6e3e-4fa2-49e0-ac70-e68d73ac5111/28642504999.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_off0000df74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF74 | 5640 bytes |
SHA-256: 3de1788574dee3b11de8b66f5144ef13ddba53210cdd1bc4572728140adf9839 |
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font_01_sfnt_off0000f2c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C0 | 11444 bytes |
SHA-256: a7286ee723f1dae72e18debe1983c1b2be719d859871f361c895082f13302855 |
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