MALICIOUS
262
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file exhibits multiple critical heuristic firings indicating malicious intent, including links to known malicious redirectors and a PDF link farm. The ML classifier also strongly flagged this as malicious. The embedded URLs and the structure suggest a phishing or malware distribution attempt, likely using a deceptive lure to encourage downloads. No scripts were extracted, but the PDF structure itself is indicative of a malicious workflow.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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://yafferge.ru/wb?keyword=adm%20apk%20for%20pc In PDF document text
- https://gijopufiri.weebly.com/uploads/1/3/1/3/131384250/387c7fe01.pdfIn PDF document text
- https://temozune.weebly.com/uploads/1/3/0/7/130738928/pifibujesopok-pewosokuduvev-sulipo-gevevuvumudonip.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415767/normal_5fff826a21177.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382423/normal_5ffa57e026a39.pdfIn PDF document text
- http://vasamekekegu.iblogger.org/49120687926.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415292/normal_600a6c3851c82.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383692/normal_6014ba29e3580.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4468259/normal_5fe13257ed626.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408481/normal_5fe8a3943ccfe.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382189/normal_6005dd10831c1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376611/normal_5fdf36a8a299a.pdfIn PDF document text
- http://jaraxusej.iblogger.org/homolytic_fission_definition_chemguide.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418180/normal_5fc6c97d3971c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zenujasope.epizy.com/repugenudufe.pdfIn PDF document text
- http://karatufi.epizy.com/tufivi.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_off0000d743.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD743 | 5144 bytes |
SHA-256: 3345d0959d96a32f8084bbea000c6a8f4701e036dfc54aadbb21573abcefdbed |
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font_01_sfnt_off0000e8b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8B7 | 10664 bytes |
SHA-256: 1fe4cb608c82cd0f5c5120da82d3d91f97c23904d1cc068dbf9be38db106ee20 |
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