PDF malware analysis — malicious · 571889200a2b7719

MALICIOUS

PDF

76.1 KB Created: 2021-03-15 20:55:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: d75dbe17b9a840703e18a1428b02bd73 SHA-1: 7cd0b81e2d2e72b1ee10d4ef93c7619572e5da24 SHA-256: 571889200a2b771921520a48e08a104d204d0fd2efce37e58a7e16952a3d2a1a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to search results or keywords.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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.
Embedded URL info EMBEDDED_URL

One 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://jumiwimov.ru/wix?keyword=words+with+r+and+z
- http://jutereli.iblogger.org/activist_learning_style.pdf
- https://cdn.sqhk.co/sosobita/heibLhj/guvunofaxajib.pdf
- https://cdn-cms.f-static.net/uploads/4491705/normal_6035d00e45439.pdf
- http://zipubezexupoka.mywebcommunity.org/kilalesi.pdf
- https://cdn.sqhk.co/fowipovoji/jggiiiV/rulolajugurolodedo.pdf
- https://cdn.sqhk.co/devisojop/gjjblgg/phoenix_news_times_obituaries.pdf
- https://cdn.sqhk.co/nedabuke/gegcggc/arenado_baseball_player.pdf
- http://mavaxur.mywebcommunity.org/33070577247.pdf
- http://xuvaguwanolinu.66ghz.com/80843935371.pdf
- https://static.s123-cdn-static.com/uploads/4416654/normal_6006805d316a1.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://d12e84a0-9808-45da-82c6-613dfe540d1b.filesusr.com/ugd/dc8a8e_7cf9df52011344d981857cb0660e7e9e.pdf?index=true
- https://edb7bb8d-792a-4213-93ec-7f573d37cc74.filesusr.com/ugd/bfd504_e82081ea99aa42c395cd9f2d2b5c476c.pdf?index=true
- https://3745348a-78a0-42d7-8ff4-af2b45bf5faf.filesusr.com/ugd/02631b_62aa8ff96f21426c83ac9322322c4acd.pdf?index=true
- http://xajejosiwoja.epizy.com/milepajuxaregek.pdf
- http://saboveliga.myartsonline.com/198353522.pdf
- http://vogapodidojuguf.myartsonline.com/fuxufivofu.pdf
- http://koraxirimaxodet.epizy.com/11746956830.pdf
- http://kegigija.atwebpages.com/waxojozudezona.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_off0000ebab.bin` `7322669b1077376bda11f8fce88e654789821aeda87deb46444ec0008ed228e1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEBAB	5036 bytes
`font_01_sfnt_off0000fcdf.bin` `6bb7df19e93a92622f748523abb3d0d5abde240d7409098fcfb2b0462d1289c2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFCDF	11460 bytes

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