MALICIOUS
324
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file contains multiple heuristics indicating malicious intent, including a critical finding for a PDF redirector link to known malicious infrastructure. It also exhibits characteristics of a link farm designed to host malicious content. The document body, though heavily obfuscated, suggests a lure related to transferring messages, likely a pretext for the malicious links. The presence of multiple external links and the ML classifier flagging it as malicious strongly support a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 8
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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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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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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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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://traffmen.ru/123?utm_term=transfer+messages+to+new+iphone+from+android In PDF document text
- https://pikotefomulig.weebly.com/uploads/1/3/4/3/134317367/duzegakukavupaxe.pdfIn PDF document text
- https://widijozitumude.weebly.com/uploads/1/3/4/6/134688085/girajufa-nodogemetogob.pdfIn PDF document text
- https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/e52a51a4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366969/normal_5f8e06ebc7cf9.pdfIn PDF document text
- https://nuvosukive.weebly.com/uploads/1/3/4/7/134718285/fcf259f84d5a.pdfIn PDF document text
- https://jutebipofan.weebly.com/uploads/1/3/4/3/134334370/9674097.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4427809/normal_5f9a54929c2ac.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/d218627b-e86d-48a1-b453-4b25744b20e4/vopagotonijituzewigulop.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a8b33c6c-fe57-4961-a20e-91214c147af2/36103329840.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9c7fe34f-d744-458b-8c2f-e714839003f3/merix.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e135f0ee-7151-40e0-afeb-0e383411257b/jerri_mason_whittaker.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/048e02bb-21b6-4446-ad07-d0b19a7f2559/sivunuseratav.pdfIn PDF document text
- https://s3.amazonaws.com/povodijirig/cefr_level_a1_practice_test.pdfIn PDF document text
- https://s3.amazonaws.com/susopuzupure/simon_monk_programming_arduino.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_off0000cf63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF63 | 5464 bytes |
SHA-256: 5819a42f878aa18b494ffb5e13f1b5b1041c3ba0c32f35f4d1b852f258d90ed6 |
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font_01_sfnt_off0000e1dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1DD | 10416 bytes |
SHA-256: 65f5b162a5a19e5479f102e6fe46d0557f674d293d8d8195bb6acfd909516fd2 |
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