MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF file contains heuristics indicating it is a phishing lure, specifically designed to trick users into clicking a link. The ML classifier strongly flags this PDF as malicious, and ClamAV also detects it as a phishing trojan. The embedded URL leads to a redirector, likely part of a credential harvesting or malware distribution chain.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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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MFA / one-time-code harvesting lure high SE_MFA_LUREDocument asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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://zajinet.ru/strik?utm_term=how+to+set+adt+alarm+to+stay+no+delay PDF link annotation
- https://cdn-cms.f-static.net/uploads/4458413/normal_6049cd8568c1d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369657/normal_5fee8953d33f5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421333/normal_603a5e9642ee5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376382/normal_5fd7e5f48bb47.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366306/normal_604effa01b658.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371497/normal_605f3ad62ec59.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/f74e26b0-bcb1-4e53-b038-e638a521353f/jakiwufiwopigam.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2d8bf1c5-fb19-4e9b-a24a-5bc3ae6edf73/95971534930.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5efcd899-4aee-426a-a3a2-915cc52f4adc/the_exorcist_2016_tv_series_download.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/71c68dbe-7a7d-4bd3-b25f-672310f621d0/73596038789.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/91ddedfb-ec1a-4239-b4a3-3c52680d0b01/captain_tsubasa_dream_team_download_ios.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/38948c2c-8547-435b-a89e-ca8253ebffbc/27705353667.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/807487a9-8db8-45d1-af7c-4cb739b6128d/pofalaku.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e38ab658-7744-456a-9b74-09b40c8193c9/febezefov.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/678c2a60-a6e4-4b25-a1c0-b8b47903b72a/bojilagixasexoxata.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a10d9d0d-9a90-4bc7-b88e-7ae9e67244bc/70775780431.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ec0bf10d-c41c-4420-9ab5-cc4030008cb0/66850340634.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_off0000e97e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE97E | 5128 bytes |
SHA-256: 6dd3a8250318b44eccd577a42ceea31b976e1953326427a8972308135d1d4415 |
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font_01_sfnt_off0000faea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAEA | 10432 bytes |
SHA-256: 53bdb791c6bf2f7037ab22565f381b251dd55386414358116bdb5443a053dbb3 |
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font_02_sfnt_off00011ef1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EF1 | 16140 bytes |
SHA-256: 2732c78df68b4531e26da51a256f0f9ab881cb8a96d1886ade34872d88eeece3 |
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