MALICIOUS
246
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
This PDF file contains a large number of external links, many hosted on disposable domains, forming a link farm. The heuristic 'SE_BRAND_CREDENTIAL_PHISH' indicates a credential phishing lure, specifically impersonating Apple. The ML classifier and ClamAV detection further confirm its malicious nature, likely serving as a dropper for phishing content.
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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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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Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISHDocument impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://gubaxuxozixiviw.weebly.com/uploads/1/3/1/3/131383744/2423c63.pdf.
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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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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://jacksth.ru/wix?keyword=concentrations+worksheet+molarity+and+molality+answers PDF link annotation
- https://gubaxuxozixiviw.weebly.com/uploads/1/3/1/3/131383744/2423c63.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481270/normal_5fe230a4bf6ef.pdfIn PDF document text
- https://cdn.sqhk.co/muzedikerum/ejh3hbZ/27105011791.pdfIn PDF document text
- https://mikotefi.weebly.com/uploads/1/3/2/6/132695671/241995.pdfIn PDF document text
- http://takefeduw.iblogger.org/an_officer_and_a_gentleman_1982.pdfIn PDF document text
- https://lerugusenexeke.weebly.com/uploads/1/3/5/3/135317851/6427324.pdfIn PDF document text
- https://sajosapisede.weebly.com/uploads/1/3/4/3/134344890/soxefuga-bivugu-guwukigufosu.pdfIn PDF document text
- http://arnautmebel.ru/sogetuxudonaguxudo02t4.pdfIn PDF document text
- https://babotiditufo.weebly.com/uploads/1/3/4/6/134694550/02a3e83135e3.pdfIn PDF document text
- https://vopuxobud.weebly.com/uploads/1/3/5/9/135974080/luwexokezawetediwa.pdfIn PDF document text
- http://loxapul.iblogger.org/nagotenetejamax.pdfIn PDF document text
- http://catsism.com/anet_a8_configuration._hf18ln.pdfIn PDF document text
- http://pifumufupes.iblogger.org/53940275620.pdfIn PDF document text
- https://cdn.sqhk.co/soxuvezosapa/jgguhhT/guitar_solo_ringtones_iphone.pdfIn PDF document text
- http://jusapp.club/android_studio_ubuntu_16._04kdjw5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489734/normal_5fd09f688d96c.pdfIn PDF document text
- https://rexawalifutox.weebly.com/uploads/1/3/4/4/134458468/ee5a1b3bb156fcc.pdfIn PDF document text
- https://cdn.sqhk.co/feguzuvubut/7qlhhja/mortal_kombat_11_kombat_pack_2_pre_order.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://lezenexujurab.epizy.com/column_chromatography_lab_report_example.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_off0000deac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEAC | 5344 bytes |
SHA-256: d63307910a74e83409ccb183cf4de343b8566942640a8b444d60725bb84c1287 |
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font_01_sfnt_off0000f0c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C2 | 10952 bytes |
SHA-256: bc63846bfbb4c91381695c10b56f4d2a3474c181602565b0cd619c8d8a6b8ccf |
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