MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged as malicious by multiple heuristics, including a critical finding for linking to known malicious redirector infrastructure. The embedded content, though heavily obfuscated, suggests a lure related to a search query. The primary IOC is the malicious redirector URL, which is likely used to funnel victims to a phishing or malware distribution site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 5
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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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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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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://cctraff.ru/123?utm_term=is+freezing+ice+cream+endothermic+or+exothermic
- https://cdn-cms.f-static.net/uploads/4368506/normal_5fe8ca706db52.pdf
- https://cdn-cms.f-static.net/uploads/4377908/normal_5f8a2133ec1a7.pdf
- https://cdn-cms.f-static.net/uploads/4366958/normal_5f875ca5d3ec9.pdf
- https://cdn-cms.f-static.net/uploads/4385435/normal_5f9277a5dc117.pdf
- https://static.s123-cdn-static.com/uploads/4390999/normal_5fddab953b283.pdf
- https://static.s123-cdn-static.com/uploads/4446647/normal_5fe0f4b9293ae.pdf
- https://nowiwadigomu.weebly.com/uploads/1/3/4/0/134018048/bejuluv-xizelu-tanubizagolumiw-tesufef.pdf
- https://cdn-cms.f-static.net/uploads/4499309/normal_5fd1e18bd56af.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/fekaduvopigab/funniest_names_for_children.pdf
- https://s3.amazonaws.com/jipowumat/70688860071.pdf
- https://s3.amazonaws.com/tetenifeme/dalaran_wow_guide.pdf
- https://s3.amazonaws.com/zowejunef/84328574465.pdf
- https://s3.amazonaws.com/libeganot/41565247403.pdf
- https://s3.amazonaws.com/piwupevivotixi/grading_percentage_sheet.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_off0000cdf0.bin4f455b34f675057b8311fadc2255584107a0a446905a7a9f69dda28273cd2906 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDF0 | 5456 bytes |
font_01_sfnt_off0000e06a.bin3cc626bd38de68d0a6fb9a3a4506abdd5548d374485e9bf66dfc2803daf5e9bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE06A | 10908 bytes |
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