MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains multiple heuristics indicating malicious redirection and a link farm, specifically pointing to a URL designed to lure users with a fake download. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded URL and the nature of the heuristics suggest a phishing attempt disguised as a software download.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://traffking.ru/123?utm_term=dragon+ball+z+dokkan+battle+apk%252Bdata+download In PDF document text
- https://tixovokibena.weebly.com/uploads/1/3/4/1/134109053/jetupuduzovimo_fizilavoxi_dabufemizelet.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fc30d46116eb00e3c59ffbc/t/5fc967c7ab78533d4839e3e7/1607034824101/33897595594.pdfIn PDF document text
- https://s3.amazonaws.com/dewutexorob/standard_pcr_protocol.pdfIn PDF document text
- https://s3.amazonaws.com/kopisigapub/masez.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0d8d024b06a7eb3fedc56/t/5fc11da7f8cdb769c60af105/1606491560653/musically_crowns_free_no_surveys.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc556af8787e879898964d2/t/5fd0efa6e0a3145b1d3c86b4/1607528359257/kejoxevetejog.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/55d278c3-c8b5-46a1-84c2-9f2054c7e073/tefisulimorenujorakosaseb.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc17bf5104edf1d7784f42e/t/5fcc53ddc836a917f9026a5e/1607226337515/80769229858.pdfIn PDF document text
- https://s3.amazonaws.com/dofufiri/jisabax.pdfIn PDF document text
- https://s3.amazonaws.com/vonuxagupeduze/bakoxonologevoveloraxuva.pdfIn PDF document text
- https://s3.amazonaws.com/benuka/vimeriz.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc724bad64a3343a5f7119e/t/5fc8eb98fc44f34df66b1c4e/1607003032577/joker_music_mp3_song.pdfIn PDF document text
- https://s3.amazonaws.com/vikukinumet/learning_styles_2018.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_off0000cf18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF18 | 5296 bytes |
SHA-256: 14fd7011b42f6be23d06a1549b6b37e9d96c79ab21e457087bf30af83e48a6b0 |
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font_01_sfnt_off0000e143.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE143 | 11176 bytes |
SHA-256: 845ff08b3c5e4799130cc7dcc136ce4c7cc75aa6ab945979219046157b7b6cf4 |
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font_02_sfnt_off000107ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107AD | 16136 bytes |
SHA-256: bdc2bc4f5e798a784232a795332b8aa31f968e1bd6130ecf5aad562764645bd7 |
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