MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. One of the primary external URLs, 'https://trafficel.ru/strik?utm_term=tumblebooks+library+app', is flagged as suspicious and likely leads to a phishing or malware distribution site. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious nature of this document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 5
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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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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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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://trafficel.ru/strik?utm_term=tumblebooks+library+app
- https://static.s123-cdn-static.com/uploads/4369645/normal_5fde0c13750e0.pdf
- https://pibekexamu.weebly.com/uploads/1/3/4/4/134401786/6750925.pdf
- https://cdn-cms.f-static.net/uploads/4366400/normal_5f9428f09c925.pdf
- https://metozalolak.weebly.com/uploads/1/3/4/6/134610510/e38a4027d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/jolozidabi/anatomy_book.pdf
- https://static1.squarespace.com/static/5fdc9da7ff99f865bfec24a0/t/5fdd03b2955ca97240f86730/1608319922676/87632483100.pdf
- https://static1.squarespace.com/static/5fc0c82527a199023ab4b7a9/t/5fc30f963570fb44d1682338/1606619031052/73826362729.pdf
- https://static1.squarespace.com/static/5fcebf643a18db22fbe7b6d5/t/5fcfd51678cd501b55e716a9/1607456023126/pewujeluva.pdf
- https://s3.amazonaws.com/wonoti/denotation_and_connotation_in_semantics.pdf
- https://s3.amazonaws.com/tabobujimo/gifuwivilirozu.pdf
- https://s3.amazonaws.com/kabisebax/extinction_2018_parents_guide.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d7be.bin14f6b0b2257b3c240ed4d8e44df1290dbb35112c165114ce576fdd32dd9bd60b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7BE | 5220 bytes |
font_01_sfnt_off0000e967.bin99d6c20138c8b6585f152ba176485f6f633f8de5102f40fc2879cce589342c22 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE967 | 10592 bytes |
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