MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains a malicious redirector link disguised as a Facebook messenger download, which is a common phishing lure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and ML_NYX_PDF_MALICIOUS strongly indicate malicious intent. The embedded link points to known malicious infrastructure, suggesting the document is designed to lead users to a compromised site or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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/aws?utm_term=facebook+messenger+apk+2018
- https://cdn-cms.f-static.net/uploads/4369503/normal_5f905d1ba5f2a.pdf
- https://butavuzi.weebly.com/uploads/1/3/2/6/132682386/laliwojapanopokezu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/pujinit/engineered_industrial_products_california.pdf
- https://s3.amazonaws.com/mejados/mepepisivipepakukatavofa.pdf
- https://s3.amazonaws.com/pajukovuxetu/bonetale_mod_apk_unlimited_energy.pdf
- https://s3.amazonaws.com/kibavutibeved/10802165301.pdf
- https://s3.amazonaws.com/wukara/republic_day_celebration_report.pdf
- https://uploads.strikinglycdn.com/files/2c9389e7-5558-4fb7-82a1-e3a675b6698a/42262754783.pdf
- https://s3.amazonaws.com/bubeto/administrative_support_assistant_interview_questions_and_answers.pdf
- https://s3.amazonaws.com/nijosinizo/brothers_in_arms_acoustic_tab.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_off0000c512.bin4bd60c41958153a81ad684a420300b68d998b633b25b9fc8930b794ba60b974b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC512 | 5900 bytes |
font_01_sfnt_off0000d913.bin6ebd1d5a9bdb873d629668c78c9557e3b78b4ae10e7d993bde98b985b6676ce9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD913 | 10188 bytes |
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